./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i5_o5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 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/recursive-simple/id_i5_o5-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 019a1f0c8a0db266ae045e6c9616b1be3853f9265d9110ea0f95df9172dad7ef --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 19:06:00,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 19:06:00,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 19:06:00,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 19:06:00,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 19:06:00,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 19:06:00,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 19:06:00,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 19:06:00,866 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 19:06:00,866 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 19:06:00,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 19:06:00,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 19:06:00,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 19:06:00,868 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 19:06:00,869 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 19:06:00,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 19:06:00,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 19:06:00,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 19:06:00,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 19:06:00,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 19:06:00,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 19:06:00,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 19:06:00,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 19:06:00,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 19:06:00,873 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 19:06:00,873 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 19:06:00,873 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 19:06:00,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 19:06:00,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 19:06:00,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 19:06:00,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 19:06:00,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 19:06:00,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 19:06:00,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 19:06:00,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 19:06:00,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 19:06:00,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 19:06:00,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 19:06:00,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 19:06:00,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 19:06:00,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 19:06:00,879 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 19:06:00,879 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 19:06:00,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 19:06:00,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 019a1f0c8a0db266ae045e6c9616b1be3853f9265d9110ea0f95df9172dad7ef [2024-11-20 19:06:01,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 19:06:01,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 19:06:01,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 19:06:01,161 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 19:06:01,161 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 19:06:01,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i5_o5-1.c [2024-11-20 19:06:02,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 19:06:02,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 19:06:02,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i5_o5-1.c [2024-11-20 19:06:02,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/814af95df/aa5dc023e2704751b96ebeb9c4817991/FLAG20e729670 [2024-11-20 19:06:03,199 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/814af95df/aa5dc023e2704751b96ebeb9c4817991 [2024-11-20 19:06:03,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 19:06:03,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 19:06:03,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 19:06:03,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 19:06:03,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 19:06:03,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ec5f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03, skipping insertion in model container [2024-11-20 19:06:03,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 19:06:03,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 19:06:03,402 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 19:06:03,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 19:06:03,429 INFO L204 MainTranslator]: Completed translation [2024-11-20 19:06:03,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03 WrapperNode [2024-11-20 19:06:03,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 19:06:03,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 19:06:03,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 19:06:03,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 19:06:03,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,457 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2024-11-20 19:06:03,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 19:06:03,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 19:06:03,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 19:06:03,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 19:06:03,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,469 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,478 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 19:06:03,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 19:06:03,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 19:06:03,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 19:06:03,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 19:06:03,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (1/1) ... [2024-11-20 19:06:03,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 19:06:03,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:06:03,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 19:06:03,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 19:06:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 19:06:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 19:06:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 19:06:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 19:06:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-20 19:06:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-20 19:06:03,668 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 19:06:03,670 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 19:06:03,766 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-20 19:06:03,766 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 19:06:03,778 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 19:06:03,779 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 19:06:03,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:06:03 BoogieIcfgContainer [2024-11-20 19:06:03,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 19:06:03,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 19:06:03,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 19:06:03,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 19:06:03,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:06:03" (1/3) ... [2024-11-20 19:06:03,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e1e32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:06:03, skipping insertion in model container [2024-11-20 19:06:03,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:06:03" (2/3) ... [2024-11-20 19:06:03,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e1e32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:06:03, skipping insertion in model container [2024-11-20 19:06:03,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:06:03" (3/3) ... [2024-11-20 19:06:03,792 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i5_o5-1.c [2024-11-20 19:06:03,808 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 19:06:03,809 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-20 19:06:03,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 19:06:03,862 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;@7fd4f8b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 19:06:03,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-20 19:06:03,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:06:03,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-20 19:06:03,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:03,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 19:06:03,872 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:03,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:03,876 INFO L85 PathProgramCache]: Analyzing trace with hash 890350836, now seen corresponding path program 1 times [2024-11-20 19:06:03,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:03,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086509878] [2024-11-20 19:06:03,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:03,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:04,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:04,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086509878] [2024-11-20 19:06:04,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086509878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:06:04,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:06:04,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 19:06:04,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643234527] [2024-11-20 19:06:04,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:06:04,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:06:04,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:04,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:06:04,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:06:04,124 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 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 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:04,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:04,208 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2024-11-20 19:06:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:06:04,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-20 19:06:04,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:04,217 INFO L225 Difference]: With dead ends: 46 [2024-11-20 19:06:04,218 INFO L226 Difference]: Without dead ends: 28 [2024-11-20 19:06:04,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 19:06:04,222 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:04,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:06:04,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-20 19:06:04,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2024-11-20 19:06:04,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:06:04,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-11-20 19:06:04,258 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 6 [2024-11-20 19:06:04,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:04,259 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-11-20 19:06:04,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:04,259 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-20 19:06:04,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-20 19:06:04,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:04,259 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:06:04,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 19:06:04,260 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:04,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:04,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1831072195, now seen corresponding path program 1 times [2024-11-20 19:06:04,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:04,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882450661] [2024-11-20 19:06:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:04,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:04,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:04,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882450661] [2024-11-20 19:06:04,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882450661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:06:04,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:06:04,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 19:06:04,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769538478] [2024-11-20 19:06:04,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:06:04,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 19:06:04,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:04,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 19:06:04,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 19:06:04,350 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:04,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:04,405 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-20 19:06:04,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 19:06:04,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-20 19:06:04,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:04,408 INFO L225 Difference]: With dead ends: 27 [2024-11-20 19:06:04,408 INFO L226 Difference]: Without dead ends: 26 [2024-11-20 19:06:04,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 19:06:04,410 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:04,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:06:04,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-20 19:06:04,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2024-11-20 19:06:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 19:06:04,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-20 19:06:04,418 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2024-11-20 19:06:04,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:04,418 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-20 19:06:04,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:04,419 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-20 19:06:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-20 19:06:04,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:04,420 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:06:04,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 19:06:04,421 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:04,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:04,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1922931507, now seen corresponding path program 1 times [2024-11-20 19:06:04,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:04,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696155793] [2024-11-20 19:06:04,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:04,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:04,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:04,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696155793] [2024-11-20 19:06:04,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696155793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:06:04,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413172993] [2024-11-20 19:06:04,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:04,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:04,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:06:04,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:06:04,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 19:06:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:04,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 19:06:04,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:06:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:04,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:06:04,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:04,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413172993] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:06:04,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:06:04,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-20 19:06:04,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355626255] [2024-11-20 19:06:04,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:06:04,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 19:06:04,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:04,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 19:06:04,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-20 19:06:04,775 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:04,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:04,940 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2024-11-20 19:06:04,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 19:06:04,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-20 19:06:04,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:04,943 INFO L225 Difference]: With dead ends: 76 [2024-11-20 19:06:04,943 INFO L226 Difference]: Without dead ends: 68 [2024-11-20 19:06:04,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-20 19:06:04,944 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 99 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:04,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 95 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:06:04,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-20 19:06:04,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2024-11-20 19:06:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-20 19:06:04,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2024-11-20 19:06:04,957 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 11 [2024-11-20 19:06:04,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:04,957 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2024-11-20 19:06:04,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:04,958 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2024-11-20 19:06:04,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-20 19:06:04,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:04,959 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:06:04,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 19:06:05,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:05,163 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:05,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:05,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1856245274, now seen corresponding path program 1 times [2024-11-20 19:06:05,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:05,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991782737] [2024-11-20 19:06:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:05,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:05,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 19:06:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-20 19:06:05,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:05,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991782737] [2024-11-20 19:06:05,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991782737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:06:05,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:06:05,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 19:06:05,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712613615] [2024-11-20 19:06:05,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:06:05,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 19:06:05,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:05,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 19:06:05,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 19:06:05,282 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 19:06:05,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:05,310 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2024-11-20 19:06:05,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 19:06:05,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-20 19:06:05,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:05,312 INFO L225 Difference]: With dead ends: 74 [2024-11-20 19:06:05,312 INFO L226 Difference]: Without dead ends: 72 [2024-11-20 19:06:05,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 19:06:05,313 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:05,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:06:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-20 19:06:05,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-20 19:06:05,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-20 19:06:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2024-11-20 19:06:05,330 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2024-11-20 19:06:05,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:05,330 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2024-11-20 19:06:05,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 19:06:05,331 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2024-11-20 19:06:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-20 19:06:05,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:05,332 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 19:06:05,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 19:06:05,332 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:05,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:05,333 INFO L85 PathProgramCache]: Analyzing trace with hash -614066819, now seen corresponding path program 1 times [2024-11-20 19:06:05,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:05,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667703429] [2024-11-20 19:06:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:05,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:05,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-20 19:06:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:05,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 19:06:05,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:05,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667703429] [2024-11-20 19:06:05,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667703429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 19:06:05,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 19:06:05,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 19:06:05,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822042245] [2024-11-20 19:06:05,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 19:06:05,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 19:06:05,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:05,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 19:06:05,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:06:05,399 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 19:06:05,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:05,420 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2024-11-20 19:06:05,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 19:06:05,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-20 19:06:05,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:05,421 INFO L225 Difference]: With dead ends: 72 [2024-11-20 19:06:05,421 INFO L226 Difference]: Without dead ends: 71 [2024-11-20 19:06:05,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 19:06:05,423 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:05,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 19:06:05,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-20 19:06:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-20 19:06:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-20 19:06:05,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2024-11-20 19:06:05,435 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 24 [2024-11-20 19:06:05,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:05,435 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2024-11-20 19:06:05,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 19:06:05,435 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2024-11-20 19:06:05,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-20 19:06:05,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:05,436 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-11-20 19:06:05,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 19:06:05,437 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:05,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:05,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1990585420, now seen corresponding path program 2 times [2024-11-20 19:06:05,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:05,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717504222] [2024-11-20 19:06:05,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:05,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:05,637 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:05,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:05,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717504222] [2024-11-20 19:06:05,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717504222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:06:05,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074870282] [2024-11-20 19:06:05,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 19:06:05,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:05,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:06:05,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:06:05,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 19:06:05,683 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 19:06:05,683 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:06:05,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 19:06:05,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:06:05,753 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:05,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:06:05,981 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:05,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074870282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:06:05,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:06:05,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-11-20 19:06:05,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962439629] [2024-11-20 19:06:05,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:06:05,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-20 19:06:05,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:05,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-20 19:06:05,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-11-20 19:06:05,983 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:06,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:06,299 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2024-11-20 19:06:06,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-20 19:06:06,300 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-20 19:06:06,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:06,302 INFO L225 Difference]: With dead ends: 188 [2024-11-20 19:06:06,302 INFO L226 Difference]: Without dead ends: 156 [2024-11-20 19:06:06,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 19:06:06,304 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 272 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:06,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 201 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:06:06,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-20 19:06:06,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2024-11-20 19:06:06,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.146551724137931) internal successors, (133), 116 states have internal predecessors, (133), 12 states have call successors, (12), 11 states have call predecessors, (12), 16 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-20 19:06:06,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2024-11-20 19:06:06,335 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 26 [2024-11-20 19:06:06,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:06,335 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2024-11-20 19:06:06,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:06,335 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2024-11-20 19:06:06,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-20 19:06:06,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:06,336 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-20 19:06:06,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 19:06:06,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-20 19:06:06,540 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:06,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1350016289, now seen corresponding path program 1 times [2024-11-20 19:06:06,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:06,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606398165] [2024-11-20 19:06:06,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:06,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:06,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 19:06:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:06,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:06,680 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-20 19:06:06,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:06,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606398165] [2024-11-20 19:06:06,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606398165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:06:06,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673415164] [2024-11-20 19:06:06,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:06,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:06,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:06:06,684 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:06:06,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 19:06:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:06,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 19:06:06,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:06:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 19:06:06,771 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:06:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 19:06:06,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673415164] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:06:06,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:06:06,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-20 19:06:06,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593498735] [2024-11-20 19:06:06,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:06:06,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 19:06:06,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:06,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 19:06:06,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-20 19:06:06,888 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand has 13 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 19:06:07,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:07,006 INFO L93 Difference]: Finished difference Result 276 states and 322 transitions. [2024-11-20 19:06:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 19:06:07,006 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 40 [2024-11-20 19:06:07,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:07,008 INFO L225 Difference]: With dead ends: 276 [2024-11-20 19:06:07,008 INFO L226 Difference]: Without dead ends: 275 [2024-11-20 19:06:07,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-11-20 19:06:07,009 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 23 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:07,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 42 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:06:07,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-20 19:06:07,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2024-11-20 19:06:07,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 221 states have (on average 1.0769230769230769) internal successors, (238), 218 states have internal predecessors, (238), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2024-11-20 19:06:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 295 transitions. [2024-11-20 19:06:07,043 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 295 transitions. Word has length 40 [2024-11-20 19:06:07,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:07,046 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 295 transitions. [2024-11-20 19:06:07,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-20 19:06:07,046 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 295 transitions. [2024-11-20 19:06:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-20 19:06:07,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:07,047 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2024-11-20 19:06:07,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 19:06:07,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:07,248 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:07,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:07,249 INFO L85 PathProgramCache]: Analyzing trace with hash -91829804, now seen corresponding path program 3 times [2024-11-20 19:06:07,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:07,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064815923] [2024-11-20 19:06:07,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:07,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:07,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:07,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064815923] [2024-11-20 19:06:07,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064815923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:06:07,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191578123] [2024-11-20 19:06:07,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 19:06:07,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:07,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:06:07,688 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 19:06:07,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 19:06:07,742 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-20 19:06:07,742 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:06:07,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-20 19:06:07,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:06:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:07,857 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:06:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 19:06:08,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191578123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:06:08,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:06:08,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-11-20 19:06:08,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41100035] [2024-11-20 19:06:08,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:06:08,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-20 19:06:08,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:08,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-20 19:06:08,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2024-11-20 19:06:08,511 INFO L87 Difference]: Start difference. First operand 275 states and 295 transitions. Second operand has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:08,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:08,707 INFO L93 Difference]: Finished difference Result 280 states and 295 transitions. [2024-11-20 19:06:08,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 19:06:08,708 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-20 19:06:08,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:08,710 INFO L225 Difference]: With dead ends: 280 [2024-11-20 19:06:08,710 INFO L226 Difference]: Without dead ends: 279 [2024-11-20 19:06:08,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=860, Invalid=2110, Unknown=0, NotChecked=0, Total=2970 [2024-11-20 19:06:08,712 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 168 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:08,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 136 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:06:08,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-20 19:06:08,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 274. [2024-11-20 19:06:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 221 states have (on average 1.0723981900452488) internal successors, (237), 217 states have internal predecessors, (237), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2024-11-20 19:06:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 294 transitions. [2024-11-20 19:06:08,733 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 294 transitions. Word has length 56 [2024-11-20 19:06:08,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:08,733 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 294 transitions. [2024-11-20 19:06:08,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:06:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 294 transitions. [2024-11-20 19:06:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-20 19:06:08,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:08,735 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2024-11-20 19:06:08,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-20 19:06:08,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:08,940 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:08,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:08,940 INFO L85 PathProgramCache]: Analyzing trace with hash -692645514, now seen corresponding path program 2 times [2024-11-20 19:06:08,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:08,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114761277] [2024-11-20 19:06:08,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:08,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:09,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-20 19:06:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:09,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:09,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:09,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:09,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:09,214 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 5 proven. 50 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-20 19:06:09,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:09,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114761277] [2024-11-20 19:06:09,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114761277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:06:09,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143644847] [2024-11-20 19:06:09,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 19:06:09,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:09,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:06:09,218 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) [2024-11-20 19:06:09,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 19:06:09,255 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 19:06:09,255 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:06:09,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 19:06:09,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:06:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 19:06:09,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:06:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-20 19:06:09,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143644847] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:06:09,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:06:09,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2024-11-20 19:06:09,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239300868] [2024-11-20 19:06:09,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:06:09,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-20 19:06:09,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:09,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-20 19:06:09,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2024-11-20 19:06:09,945 INFO L87 Difference]: Start difference. First operand 274 states and 294 transitions. Second operand has 25 states, 24 states have (on average 2.25) internal successors, (54), 25 states have internal predecessors, (54), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 19:06:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:10,192 INFO L93 Difference]: Finished difference Result 593 states and 678 transitions. [2024-11-20 19:06:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 19:06:10,193 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.25) internal successors, (54), 25 states have internal predecessors, (54), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 55 [2024-11-20 19:06:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:10,195 INFO L225 Difference]: With dead ends: 593 [2024-11-20 19:06:10,195 INFO L226 Difference]: Without dead ends: 369 [2024-11-20 19:06:10,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=396, Invalid=1496, Unknown=0, NotChecked=0, Total=1892 [2024-11-20 19:06:10,197 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 47 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:10,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 36 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:06:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-20 19:06:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2024-11-20 19:06:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 300 states have (on average 1.0366666666666666) internal successors, (311), 291 states have internal predecessors, (311), 12 states have call successors, (12), 11 states have call predecessors, (12), 56 states have return successors, (66), 66 states have call predecessors, (66), 11 states have call successors, (66) [2024-11-20 19:06:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 389 transitions. [2024-11-20 19:06:10,221 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 389 transitions. Word has length 55 [2024-11-20 19:06:10,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:10,222 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 389 transitions. [2024-11-20 19:06:10,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.25) internal successors, (54), 25 states have internal predecessors, (54), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-20 19:06:10,222 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 389 transitions. [2024-11-20 19:06:10,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-20 19:06:10,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:10,225 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1] [2024-11-20 19:06:10,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 19:06:10,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:10,430 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:10,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash 955887606, now seen corresponding path program 3 times [2024-11-20 19:06:10,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:10,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694176586] [2024-11-20 19:06:10,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:10,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:10,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-20 19:06:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:10,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:10,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:11,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:11,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:11,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:11,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:11,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:11,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:11,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:11,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 11 proven. 275 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-20 19:06:11,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:11,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694176586] [2024-11-20 19:06:11,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694176586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:06:11,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670530825] [2024-11-20 19:06:11,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 19:06:11,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:11,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:06:11,519 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) [2024-11-20 19:06:11,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 19:06:11,586 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-20 19:06:11,587 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:06:11,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-20 19:06:11,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:06:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-20 19:06:11,723 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:06:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-20 19:06:16,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670530825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:06:16,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:06:16,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 48 [2024-11-20 19:06:16,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718839722] [2024-11-20 19:06:16,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:06:16,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-20 19:06:16,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:06:16,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-20 19:06:16,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=601, Invalid=1751, Unknown=0, NotChecked=0, Total=2352 [2024-11-20 19:06:16,092 INFO L87 Difference]: Start difference. First operand 369 states and 389 transitions. Second operand has 49 states, 48 states have (on average 2.125) internal successors, (102), 49 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-20 19:06:16,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:06:16,674 INFO L93 Difference]: Finished difference Result 1006 states and 1157 transitions. [2024-11-20 19:06:16,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-20 19:06:16,675 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.125) internal successors, (102), 49 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) Word has length 115 [2024-11-20 19:06:16,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:06:16,678 INFO L225 Difference]: With dead ends: 1006 [2024-11-20 19:06:16,678 INFO L226 Difference]: Without dead ends: 429 [2024-11-20 19:06:16,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3357 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1656, Invalid=6716, Unknown=0, NotChecked=0, Total=8372 [2024-11-20 19:06:16,683 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 95 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 19:06:16,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 71 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 19:06:16,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-20 19:06:16,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2024-11-20 19:06:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 348 states have (on average 1.0316091954022988) internal successors, (359), 339 states have internal predecessors, (359), 12 states have call successors, (12), 11 states have call predecessors, (12), 68 states have return successors, (78), 78 states have call predecessors, (78), 11 states have call successors, (78) [2024-11-20 19:06:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 449 transitions. [2024-11-20 19:06:16,717 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 449 transitions. Word has length 115 [2024-11-20 19:06:16,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:06:16,718 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 449 transitions. [2024-11-20 19:06:16,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 2.125) internal successors, (102), 49 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-20 19:06:16,718 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 449 transitions. [2024-11-20 19:06:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-20 19:06:16,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 19:06:16,725 INFO L215 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1] [2024-11-20 19:06:16,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 19:06:16,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:16,930 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-20 19:06:16,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 19:06:16,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1103718135, now seen corresponding path program 4 times [2024-11-20 19:06:16,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 19:06:16,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519995984] [2024-11-20 19:06:16,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 19:06:16,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 19:06:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:17,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 19:06:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:18,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:18,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:18,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:19,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:19,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:19,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:19,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:20,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:20,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:20,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:20,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:20,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:20,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:20,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:21,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:21,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:21,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:21,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:21,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:21,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:21,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:21,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 19:06:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 19:06:21,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4138 backedges. 34 proven. 1265 refuted. 0 times theorem prover too weak. 2839 trivial. 0 not checked. [2024-11-20 19:06:21,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 19:06:21,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519995984] [2024-11-20 19:06:21,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519995984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 19:06:21,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127121604] [2024-11-20 19:06:21,664 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 19:06:21,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:06:21,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 19:06:21,666 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) [2024-11-20 19:06:21,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 19:06:21,815 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 19:06:21,815 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 19:06:21,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-20 19:06:21,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 19:06:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4138 backedges. 1595 proven. 1344 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2024-11-20 19:06:23,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 19:07:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 4138 backedges. 1595 proven. 2290 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-20 19:07:16,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127121604] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 19:07:16,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 19:07:16,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 51, 73] total 146 [2024-11-20 19:07:16,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120105115] [2024-11-20 19:07:16,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 19:07:16,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2024-11-20 19:07:16,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 19:07:16,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2024-11-20 19:07:16,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2199, Invalid=18971, Unknown=0, NotChecked=0, Total=21170 [2024-11-20 19:07:16,732 INFO L87 Difference]: Start difference. First operand 429 states and 449 transitions. Second operand has 146 states, 144 states have (on average 2.673611111111111) internal successors, (385), 122 states have internal predecessors, (385), 50 states have call successors, (51), 25 states have call predecessors, (51), 46 states have return successors, (69), 46 states have call predecessors, (69), 26 states have call successors, (69) [2024-11-20 19:07:17,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 19:07:17,390 INFO L93 Difference]: Finished difference Result 429 states and 449 transitions. [2024-11-20 19:07:17,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-20 19:07:17,391 INFO L78 Accepts]: Start accepts. Automaton has has 146 states, 144 states have (on average 2.673611111111111) internal successors, (385), 122 states have internal predecessors, (385), 50 states have call successors, (51), 25 states have call predecessors, (51), 46 states have return successors, (69), 46 states have call predecessors, (69), 26 states have call successors, (69) Word has length 290 [2024-11-20 19:07:17,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 19:07:17,392 INFO L225 Difference]: With dead ends: 429 [2024-11-20 19:07:17,392 INFO L226 Difference]: Without dead ends: 0 [2024-11-20 19:07:17,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 504 SyntacticMatches, 23 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12821 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3033, Invalid=21773, Unknown=0, NotChecked=0, Total=24806 [2024-11-20 19:07:17,397 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 62 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 19:07:17,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 124 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 19:07:17,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-20 19:07:17,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-20 19:07:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 19:07:17,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-20 19:07:17,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 290 [2024-11-20 19:07:17,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 19:07:17,399 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 19:07:17,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 144 states have (on average 2.673611111111111) internal successors, (385), 122 states have internal predecessors, (385), 50 states have call successors, (51), 25 states have call predecessors, (51), 46 states have return successors, (69), 46 states have call predecessors, (69), 26 states have call successors, (69) [2024-11-20 19:07:17,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-20 19:07:17,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-20 19:07:17,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-20 19:07:17,403 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-20 19:07:17,403 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-20 19:07:17,403 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-20 19:07:17,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 19:07:17,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 19:07:17,611 INFO L407 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1] [2024-11-20 19:07:17,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-20 19:07:18,540 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 19:07:18,573 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-20 19:07:18,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:07:18 BoogieIcfgContainer [2024-11-20 19:07:18,581 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 19:07:18,581 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 19:07:18,581 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 19:07:18,581 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 19:07:18,582 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:06:03" (3/4) ... [2024-11-20 19:07:18,584 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 19:07:18,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-11-20 19:07:18,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-20 19:07:18,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-20 19:07:18,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 19:07:18,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 19:07:18,669 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 19:07:18,670 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 19:07:18,670 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 19:07:18,670 INFO L158 Benchmark]: Toolchain (without parser) took 75467.61ms. Allocated memory was 136.3MB in the beginning and 541.1MB in the end (delta: 404.8MB). Free memory was 83.1MB in the beginning and 227.3MB in the end (delta: -144.2MB). Peak memory consumption was 262.2MB. Max. memory is 16.1GB. [2024-11-20 19:07:18,671 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 136.3MB. Free memory was 97.6MB in the beginning and 97.4MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 19:07:18,671 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.54ms. Allocated memory is still 136.3MB. Free memory was 82.8MB in the beginning and 71.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 19:07:18,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.17ms. Allocated memory is still 136.3MB. Free memory was 71.1MB in the beginning and 69.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 19:07:18,672 INFO L158 Benchmark]: Boogie Preprocessor took 27.25ms. Allocated memory is still 136.3MB. Free memory was 69.8MB in the beginning and 68.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 19:07:18,672 INFO L158 Benchmark]: RCFGBuilder took 294.32ms. Allocated memory is still 136.3MB. Free memory was 68.1MB in the beginning and 102.6MB in the end (delta: -34.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-11-20 19:07:18,673 INFO L158 Benchmark]: TraceAbstraction took 74797.09ms. Allocated memory was 136.3MB in the beginning and 541.1MB in the end (delta: 404.8MB). Free memory was 102.0MB in the beginning and 231.5MB in the end (delta: -129.5MB). Peak memory consumption was 277.6MB. Max. memory is 16.1GB. [2024-11-20 19:07:18,673 INFO L158 Benchmark]: Witness Printer took 88.76ms. Allocated memory is still 541.1MB. Free memory was 231.5MB in the beginning and 227.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 19:07:18,674 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 136.3MB. Free memory was 97.6MB in the beginning and 97.4MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.54ms. Allocated memory is still 136.3MB. Free memory was 82.8MB in the beginning and 71.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.17ms. Allocated memory is still 136.3MB. Free memory was 71.1MB in the beginning and 69.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.25ms. Allocated memory is still 136.3MB. Free memory was 69.8MB in the beginning and 68.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 294.32ms. Allocated memory is still 136.3MB. Free memory was 68.1MB in the beginning and 102.6MB in the end (delta: -34.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * TraceAbstraction took 74797.09ms. Allocated memory was 136.3MB in the beginning and 541.1MB in the end (delta: 404.8MB). Free memory was 102.0MB in the beginning and 231.5MB in the end (delta: -129.5MB). Peak memory consumption was 277.6MB. Max. memory is 16.1GB. * Witness Printer took 88.76ms. Allocated memory is still 541.1MB. Free memory was 231.5MB in the beginning and 227.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: 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, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 73.8s, OverallIterations: 11, TraceHistogramMax: 35, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 851 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 809 mSDsluCounter, 862 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 699 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2171 IncrementalHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 163 mSDtfsCounter, 2171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1505 GetRequests, 1066 SyntacticMatches, 23 SemanticMatches, 416 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17752 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=10, InterpolantAutomatonStates: 176, 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, 11 MinimizatonAttempts, 34 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 68.7s InterpolantComputationTime, 1242 NumberOfCodeBlocks, 1099 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 1810 ConstructedInterpolants, 0 QuantifiedInterpolants, 4904 SizeOfPredicates, 52 NumberOfNonLiveVariables, 984 ConjunctsInSsa, 153 ConjunctsInUnsatCore, 25 InterpolantComputations, 4 PerfectInterpolantSequences, 8788/15577 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 - ProcedureContractResult [Line: 6]: Procedure Contract for id Derived contract for procedure id. Requires: ((0 <= x) && (x <= 5)) Ensures: (((0 < x) || ((\result == 0) && (x == 0))) && (x <= 5)) RESULT: Ultimate proved your program to be correct! [2024-11-20 19:07:18,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE