./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark36_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark36_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa1583b531c18e8d25726690525e5ca2db800c1fca35b7cfde3a7fa11382718a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:15:46,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:15:46,816 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 13:15:46,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:15:46,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:15:46,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:15:46,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:15:46,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:15:46,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:15:46,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:15:46,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:15:46,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:15:46,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:15:46,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:15:46,856 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:15:46,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:15:46,857 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:15:46,859 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 13:15:46,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:15:46,862 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 13:15:46,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:15:46,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:15:46,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:15:46,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:15:46,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:15:46,863 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:15:46,864 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:15:46,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 13:15:46,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:15:46,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:15:46,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:15:46,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:15:46,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:15:46,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:15:46,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:15:46,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:15:46,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:15:46,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:15:46,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:15:46,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:15:46,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:15:46,868 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:15:46,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:15:46,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:15:46,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa1583b531c18e8d25726690525e5ca2db800c1fca35b7cfde3a7fa11382718a [2024-10-13 13:15:47,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:15:47,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:15:47,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:15:47,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:15:47,125 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:15:47,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark36_conjunctive.i [2024-10-13 13:15:48,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:15:48,748 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:15:48,749 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark36_conjunctive.i [2024-10-13 13:15:48,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a4f72cfd/fe1f7738b8a746878b07e154a44213fe/FLAG6ceecf893 [2024-10-13 13:15:49,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a4f72cfd/fe1f7738b8a746878b07e154a44213fe [2024-10-13 13:15:49,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:15:49,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:15:49,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:15:49,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:15:49,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:15:49,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7b2879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49, skipping insertion in model container [2024-10-13 13:15:49,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:15:49,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:15:49,376 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:15:49,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:15:49,405 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:15:49,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49 WrapperNode [2024-10-13 13:15:49,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:15:49,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:15:49,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:15:49,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:15:49,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,442 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-10-13 13:15:49,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:15:49,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:15:49,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:15:49,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:15:49,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,466 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 13:15:49,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:15:49,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:15:49,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:15:49,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:15:49,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (1/1) ... [2024-10-13 13:15:49,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:15:49,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:15:49,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 13:15:49,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 13:15:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 13:15:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 13:15:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:15:49,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:15:49,623 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:15:49,625 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:15:49,716 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-13 13:15:49,717 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:15:49,750 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:15:49,751 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 13:15:49,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:15:49 BoogieIcfgContainer [2024-10-13 13:15:49,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:15:49,754 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:15:49,754 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:15:49,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:15:49,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:15:49" (1/3) ... [2024-10-13 13:15:49,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be341a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:15:49, skipping insertion in model container [2024-10-13 13:15:49,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:49" (2/3) ... [2024-10-13 13:15:49,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be341a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:15:49, skipping insertion in model container [2024-10-13 13:15:49,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:15:49" (3/3) ... [2024-10-13 13:15:49,764 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark36_conjunctive.i [2024-10-13 13:15:49,807 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:15:49,807 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-13 13:15:49,866 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:15:49,871 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;@1cd5b4d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:15:49,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-13 13:15:49,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-13 13:15:49,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:49,880 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-13 13:15:49,880 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:49,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:49,885 INFO L85 PathProgramCache]: Analyzing trace with hash 72255252, now seen corresponding path program 1 times [2024-10-13 13:15:49,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:49,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863762401] [2024-10-13 13:15:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:49,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:50,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:50,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863762401] [2024-10-13 13:15:50,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863762401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:15:50,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:15:50,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:15:50,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610037617] [2024-10-13 13:15:50,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:15:50,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:15:50,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:50,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:15:50,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:15:50,148 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:50,196 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-10-13 13:15:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:15:50,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-13 13:15:50,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:50,204 INFO L225 Difference]: With dead ends: 25 [2024-10-13 13:15:50,204 INFO L226 Difference]: Without dead ends: 11 [2024-10-13 13:15:50,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:15:50,210 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:50,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:15:50,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-10-13 13:15:50,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-13 13:15:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-10-13 13:15:50,232 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2024-10-13 13:15:50,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:50,232 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-10-13 13:15:50,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,233 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-10-13 13:15:50,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-13 13:15:50,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:50,233 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 13:15:50,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 13:15:50,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:50,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:50,234 INFO L85 PathProgramCache]: Analyzing trace with hash -2055054433, now seen corresponding path program 1 times [2024-10-13 13:15:50,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:50,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261806465] [2024-10-13 13:15:50,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:50,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:50,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:50,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261806465] [2024-10-13 13:15:50,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261806465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:15:50,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:15:50,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:15:50,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554180725] [2024-10-13 13:15:50,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:15:50,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:15:50,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:50,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:15:50,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:15:50,323 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:50,352 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-10-13 13:15:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:15:50,353 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-13 13:15:50,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:50,354 INFO L225 Difference]: With dead ends: 16 [2024-10-13 13:15:50,354 INFO L226 Difference]: Without dead ends: 15 [2024-10-13 13:15:50,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:15:50,355 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:50,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:15:50,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-10-13 13:15:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-13 13:15:50,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-10-13 13:15:50,364 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2024-10-13 13:15:50,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:50,364 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-10-13 13:15:50,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-10-13 13:15:50,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 13:15:50,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:50,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:15:50,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 13:15:50,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:50,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:50,367 INFO L85 PathProgramCache]: Analyzing trace with hash 717822070, now seen corresponding path program 1 times [2024-10-13 13:15:50,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:50,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893766879] [2024-10-13 13:15:50,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:50,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:50,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:50,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:50,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893766879] [2024-10-13 13:15:50,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893766879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:15:50,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:15:50,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:15:50,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109555100] [2024-10-13 13:15:50,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:15:50,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:15:50,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:50,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:15:50,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:15:50,427 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:50,446 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-10-13 13:15:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:15:50,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-13 13:15:50,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:50,448 INFO L225 Difference]: With dead ends: 15 [2024-10-13 13:15:50,448 INFO L226 Difference]: Without dead ends: 14 [2024-10-13 13:15:50,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:15:50,449 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:50,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:15:50,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-13 13:15:50,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-10-13 13:15:50,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-10-13 13:15:50,455 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2024-10-13 13:15:50,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:50,455 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-10-13 13:15:50,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-10-13 13:15:50,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-13 13:15:50,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:50,456 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:15:50,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 13:15:50,456 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:50,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:50,457 INFO L85 PathProgramCache]: Analyzing trace with hash 777647745, now seen corresponding path program 1 times [2024-10-13 13:15:50,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:50,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76945413] [2024-10-13 13:15:50,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:50,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:50,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:50,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:50,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76945413] [2024-10-13 13:15:50,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76945413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:15:50,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:15:50,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:15:50,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689484253] [2024-10-13 13:15:50,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:15:50,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:15:50,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:50,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:15:50,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:15:50,511 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:50,527 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-10-13 13:15:50,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:15:50,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-13 13:15:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:50,529 INFO L225 Difference]: With dead ends: 17 [2024-10-13 13:15:50,529 INFO L226 Difference]: Without dead ends: 16 [2024-10-13 13:15:50,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:15:50,530 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:50,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:15:50,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-13 13:15:50,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-13 13:15:50,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-10-13 13:15:50,534 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2024-10-13 13:15:50,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:50,535 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-10-13 13:15:50,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,535 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-10-13 13:15:50,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 13:15:50,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:50,536 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 13:15:50,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 13:15:50,536 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:50,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:50,537 INFO L85 PathProgramCache]: Analyzing trace with hash -342057944, now seen corresponding path program 1 times [2024-10-13 13:15:50,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:50,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382590650] [2024-10-13 13:15:50,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:50,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:50,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:50,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:50,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382590650] [2024-10-13 13:15:50,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382590650] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:15:50,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059244538] [2024-10-13 13:15:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:50,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:15:50,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:15:50,644 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:15:50,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 13:15:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:50,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 13:15:50,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:15:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:50,765 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:15:50,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:50,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059244538] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:15:50,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:15:50,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-13 13:15:50,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116313957] [2024-10-13 13:15:50,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:15:50,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 13:15:50,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:50,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 13:15:50,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:15:50,854 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:50,906 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2024-10-13 13:15:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:15:50,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-13 13:15:50,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:50,908 INFO L225 Difference]: With dead ends: 35 [2024-10-13 13:15:50,909 INFO L226 Difference]: Without dead ends: 34 [2024-10-13 13:15:50,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:15:50,910 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:50,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 31 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:15:50,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-13 13:15:50,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-10-13 13:15:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2024-10-13 13:15:50,920 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 12 [2024-10-13 13:15:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:50,921 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2024-10-13 13:15:50,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2024-10-13 13:15:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-13 13:15:50,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:50,922 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-13 13:15:50,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 13:15:51,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:15:51,124 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:51,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:51,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1994799306, now seen corresponding path program 1 times [2024-10-13 13:15:51,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:51,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490104643] [2024-10-13 13:15:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:51,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:51,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:51,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490104643] [2024-10-13 13:15:51,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490104643] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:15:51,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560661007] [2024-10-13 13:15:51,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:51,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:15:51,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:15:51,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:15:51,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 13:15:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:51,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:15:51,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:15:51,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:51,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:15:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:51,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560661007] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:15:51,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:15:51,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-13 13:15:51,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82823390] [2024-10-13 13:15:51,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:15:51,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 13:15:51,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:51,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 13:15:51,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:15:51,331 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:51,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:51,369 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2024-10-13 13:15:51,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:15:51,370 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-13 13:15:51,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:51,371 INFO L225 Difference]: With dead ends: 35 [2024-10-13 13:15:51,371 INFO L226 Difference]: Without dead ends: 34 [2024-10-13 13:15:51,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:15:51,373 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:51,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:15:51,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-13 13:15:51,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-10-13 13:15:51,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.0625) internal successors, (34), 33 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:51,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2024-10-13 13:15:51,383 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 14 [2024-10-13 13:15:51,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:51,383 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2024-10-13 13:15:51,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2024-10-13 13:15:51,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-13 13:15:51,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:51,385 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 1, 1, 1] [2024-10-13 13:15:51,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 13:15:51,585 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 [2024-10-13 13:15:51,586 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:51,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:51,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1521623741, now seen corresponding path program 2 times [2024-10-13 13:15:51,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:51,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795400122] [2024-10-13 13:15:51,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:51,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:51,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:51,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795400122] [2024-10-13 13:15:51,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795400122] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:15:51,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600578719] [2024-10-13 13:15:51,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:15:51,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:15:51,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:15:51,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:15:51,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 13:15:51,923 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:15:51,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:15:51,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 13:15:51,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:15:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:51,992 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:15:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:52,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600578719] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:15:52,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:15:52,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2024-10-13 13:15:52,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194942994] [2024-10-13 13:15:52,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:15:52,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-13 13:15:52,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:52,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-13 13:15:52,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-13 13:15:52,183 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:52,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:52,249 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2024-10-13 13:15:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 13:15:52,250 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-10-13 13:15:52,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:52,251 INFO L225 Difference]: With dead ends: 74 [2024-10-13 13:15:52,251 INFO L226 Difference]: Without dead ends: 73 [2024-10-13 13:15:52,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-13 13:15:52,252 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:52,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 75 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:15:52,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-13 13:15:52,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2024-10-13 13:15:52,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.106060606060606) internal successors, (73), 67 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:52,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2024-10-13 13:15:52,266 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 30 [2024-10-13 13:15:52,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:52,266 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2024-10-13 13:15:52,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:52,267 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2024-10-13 13:15:52,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-13 13:15:52,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:52,267 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1] [2024-10-13 13:15:52,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 13:15:52,467 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 [2024-10-13 13:15:52,468 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:52,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:52,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1991532763, now seen corresponding path program 2 times [2024-10-13 13:15:52,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:52,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997197217] [2024-10-13 13:15:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:52,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:52,619 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:52,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:52,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997197217] [2024-10-13 13:15:52,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997197217] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:15:52,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288506436] [2024-10-13 13:15:52,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:15:52,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:15:52,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:15:52,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:15:52,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 13:15:52,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:15:52,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:15:52,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 13:15:52,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:15:52,726 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:52,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:15:52,902 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:52,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288506436] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:15:52,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:15:52,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2024-10-13 13:15:52,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996676599] [2024-10-13 13:15:52,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:15:52,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-13 13:15:52,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:52,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-13 13:15:52,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-13 13:15:52,905 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand has 22 states, 21 states have (on average 3.0) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:52,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:52,969 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2024-10-13 13:15:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 13:15:52,969 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-10-13 13:15:52,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:52,970 INFO L225 Difference]: With dead ends: 71 [2024-10-13 13:15:52,970 INFO L226 Difference]: Without dead ends: 70 [2024-10-13 13:15:52,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-13 13:15:52,971 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:52,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:15:52,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-13 13:15:52,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-10-13 13:15:52,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 1.0294117647058822) internal successors, (70), 69 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2024-10-13 13:15:52,981 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 32 [2024-10-13 13:15:52,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:52,981 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2024-10-13 13:15:52,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:52,982 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2024-10-13 13:15:52,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-13 13:15:52,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:52,983 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 1, 1, 1] [2024-10-13 13:15:52,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 13:15:53,187 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 [2024-10-13 13:15:53,188 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:53,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash -853459655, now seen corresponding path program 3 times [2024-10-13 13:15:53,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:53,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399771593] [2024-10-13 13:15:53,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:53,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:53,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:53,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399771593] [2024-10-13 13:15:53,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399771593] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:15:53,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356308605] [2024-10-13 13:15:53,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:15:53,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:15:53,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:15:53,686 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:15:53,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 13:15:53,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-13 13:15:53,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:15:53,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-13 13:15:53,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:15:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:53,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:15:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:54,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356308605] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:15:54,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:15:54,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2024-10-13 13:15:54,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231232808] [2024-10-13 13:15:54,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:15:54,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-10-13 13:15:54,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:54,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-10-13 13:15:54,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-10-13 13:15:54,571 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand has 46 states, 45 states have (on average 2.911111111111111) internal successors, (131), 46 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:54,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:54,711 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2024-10-13 13:15:54,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-13 13:15:54,712 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.911111111111111) internal successors, (131), 46 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-13 13:15:54,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:54,713 INFO L225 Difference]: With dead ends: 152 [2024-10-13 13:15:54,717 INFO L226 Difference]: Without dead ends: 151 [2024-10-13 13:15:54,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-10-13 13:15:54,719 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:54,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 107 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:15:54,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-13 13:15:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-10-13 13:15:54,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 138 states have (on average 1.0942028985507246) internal successors, (151), 139 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:54,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 151 transitions. [2024-10-13 13:15:54,733 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 151 transitions. Word has length 66 [2024-10-13 13:15:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:54,733 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 151 transitions. [2024-10-13 13:15:54,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.911111111111111) internal successors, (131), 46 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 151 transitions. [2024-10-13 13:15:54,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-13 13:15:54,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:54,735 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 1, 1, 1] [2024-10-13 13:15:54,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 13:15:54,939 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 [2024-10-13 13:15:54,940 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:54,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:54,940 INFO L85 PathProgramCache]: Analyzing trace with hash 164026779, now seen corresponding path program 3 times [2024-10-13 13:15:54,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:54,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062686626] [2024-10-13 13:15:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:54,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:55,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:55,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062686626] [2024-10-13 13:15:55,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062686626] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:15:55,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359373147] [2024-10-13 13:15:55,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 13:15:55,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:15:55,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:15:55,395 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:15:55,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 13:15:55,460 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-13 13:15:55,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:15:55,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-13 13:15:55,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:15:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:55,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:15:56,122 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:56,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359373147] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:15:56,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:15:56,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2024-10-13 13:15:56,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796551724] [2024-10-13 13:15:56,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:15:56,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-10-13 13:15:56,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:15:56,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-10-13 13:15:56,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-10-13 13:15:56,125 INFO L87 Difference]: Start difference. First operand 140 states and 151 transitions. Second operand has 46 states, 45 states have (on average 3.0) internal successors, (135), 46 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:56,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:15:56,238 INFO L93 Difference]: Finished difference Result 143 states and 154 transitions. [2024-10-13 13:15:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-13 13:15:56,239 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.0) internal successors, (135), 46 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-13 13:15:56,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:15:56,240 INFO L225 Difference]: With dead ends: 143 [2024-10-13 13:15:56,240 INFO L226 Difference]: Without dead ends: 142 [2024-10-13 13:15:56,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2024-10-13 13:15:56,241 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:15:56,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:15:56,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-13 13:15:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-10-13 13:15:56,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 140 states have (on average 1.0142857142857142) internal successors, (142), 141 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:56,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 142 transitions. [2024-10-13 13:15:56,250 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 142 transitions. Word has length 68 [2024-10-13 13:15:56,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:15:56,250 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 142 transitions. [2024-10-13 13:15:56,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.0) internal successors, (135), 46 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:15:56,250 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 142 transitions. [2024-10-13 13:15:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-13 13:15:56,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:15:56,253 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 1, 1, 1] [2024-10-13 13:15:56,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 13:15:56,456 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 [2024-10-13 13:15:56,457 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:15:56,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:15:56,457 INFO L85 PathProgramCache]: Analyzing trace with hash 791852069, now seen corresponding path program 4 times [2024-10-13 13:15:56,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:15:56,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505788841] [2024-10-13 13:15:56,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:15:56,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:15:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:15:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:57,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:15:57,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505788841] [2024-10-13 13:15:57,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505788841] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:15:57,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798958514] [2024-10-13 13:15:57,916 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 13:15:57,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:15:57,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:15:57,919 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:15:57,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 13:15:58,015 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 13:15:58,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:15:58,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-13 13:15:58,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:15:58,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:15:58,190 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:16:00,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 1474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:00,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798958514] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:16:00,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:16:00,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2024-10-13 13:16:00,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001767264] [2024-10-13 13:16:00,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:16:00,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2024-10-13 13:16:00,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:16:00,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2024-10-13 13:16:00,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2024-10-13 13:16:00,132 INFO L87 Difference]: Start difference. First operand 142 states and 142 transitions. Second operand has 94 states, 93 states have (on average 2.956989247311828) internal successors, (275), 94 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:00,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:16:00,368 INFO L93 Difference]: Finished difference Result 308 states and 331 transitions. [2024-10-13 13:16:00,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-10-13 13:16:00,369 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.956989247311828) internal successors, (275), 94 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-10-13 13:16:00,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:16:00,371 INFO L225 Difference]: With dead ends: 308 [2024-10-13 13:16:00,372 INFO L226 Difference]: Without dead ends: 307 [2024-10-13 13:16:00,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2509 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2024-10-13 13:16:00,375 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 48 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:16:00,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 218 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:16:00,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-10-13 13:16:00,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 284. [2024-10-13 13:16:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 282 states have (on average 1.0886524822695036) internal successors, (307), 283 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 307 transitions. [2024-10-13 13:16:00,392 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 307 transitions. Word has length 138 [2024-10-13 13:16:00,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:16:00,392 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 307 transitions. [2024-10-13 13:16:00,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.956989247311828) internal successors, (275), 94 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:00,392 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 307 transitions. [2024-10-13 13:16:00,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-13 13:16:00,397 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:16:00,397 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 1, 1, 1] [2024-10-13 13:16:00,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-13 13:16:00,597 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 [2024-10-13 13:16:00,598 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:16:00,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:16:00,598 INFO L85 PathProgramCache]: Analyzing trace with hash 760628615, now seen corresponding path program 4 times [2024-10-13 13:16:00,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:16:00,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075141983] [2024-10-13 13:16:00,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:16:00,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:16:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:16:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:01,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:16:01,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075141983] [2024-10-13 13:16:01,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075141983] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:16:01,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3310722] [2024-10-13 13:16:01,935 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 13:16:01,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:16:01,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:16:01,936 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:16:01,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 13:16:02,016 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 13:16:02,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:16:02,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-10-13 13:16:02,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:16:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:02,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:16:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:03,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3310722] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:16:03,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:16:03,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2024-10-13 13:16:03,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797890286] [2024-10-13 13:16:03,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:16:03,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2024-10-13 13:16:03,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:16:03,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2024-10-13 13:16:03,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2024-10-13 13:16:03,843 INFO L87 Difference]: Start difference. First operand 284 states and 307 transitions. Second operand has 94 states, 93 states have (on average 3.0) internal successors, (279), 94 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:04,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:16:04,084 INFO L93 Difference]: Finished difference Result 287 states and 310 transitions. [2024-10-13 13:16:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-10-13 13:16:04,085 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.0) internal successors, (279), 94 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-10-13 13:16:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:16:04,087 INFO L225 Difference]: With dead ends: 287 [2024-10-13 13:16:04,087 INFO L226 Difference]: Without dead ends: 286 [2024-10-13 13:16:04,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2509 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2024-10-13 13:16:04,090 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:16:04,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:16:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-10-13 13:16:04,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-10-13 13:16:04,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 284 states have (on average 1.0070422535211268) internal successors, (286), 285 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2024-10-13 13:16:04,109 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 140 [2024-10-13 13:16:04,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:16:04,109 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2024-10-13 13:16:04,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.0) internal successors, (279), 94 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:04,110 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2024-10-13 13:16:04,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-10-13 13:16:04,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:16:04,118 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 1, 1, 1] [2024-10-13 13:16:04,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 13:16:04,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-13 13:16:04,322 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:16:04,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:16:04,322 INFO L85 PathProgramCache]: Analyzing trace with hash 551190013, now seen corresponding path program 5 times [2024-10-13 13:16:04,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:16:04,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939596816] [2024-10-13 13:16:04,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:16:04,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:16:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:16:08,815 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 6394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:08,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:16:08,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939596816] [2024-10-13 13:16:08,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939596816] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:16:08,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294481065] [2024-10-13 13:16:08,816 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 13:16:08,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:16:08,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:16:08,817 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:16:08,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 13:16:09,039 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-10-13 13:16:09,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:16:09,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-10-13 13:16:09,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:16:09,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 6394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:09,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:16:15,608 INFO L134 CoverageAnalysis]: Checked inductivity of 6394 backedges. 0 proven. 6394 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:15,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294481065] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:16:15,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:16:15,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2024-10-13 13:16:15,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389796606] [2024-10-13 13:16:15,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:16:15,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2024-10-13 13:16:15,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:16:15,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2024-10-13 13:16:15,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-10-13 13:16:15,618 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand has 190 states, 189 states have (on average 2.9788359788359786) internal successors, (563), 190 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:16,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:16:16,192 INFO L93 Difference]: Finished difference Result 620 states and 667 transitions. [2024-10-13 13:16:16,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2024-10-13 13:16:16,193 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.9788359788359786) internal successors, (563), 190 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2024-10-13 13:16:16,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:16:16,195 INFO L225 Difference]: With dead ends: 620 [2024-10-13 13:16:16,196 INFO L226 Difference]: Without dead ends: 619 [2024-10-13 13:16:16,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-10-13 13:16:16,199 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 157 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:16:16,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 370 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:16:16,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-10-13 13:16:16,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 572. [2024-10-13 13:16:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 570 states have (on average 1.0859649122807018) internal successors, (619), 571 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:16,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 619 transitions. [2024-10-13 13:16:16,214 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 619 transitions. Word has length 282 [2024-10-13 13:16:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:16:16,214 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 619 transitions. [2024-10-13 13:16:16,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.9788359788359786) internal successors, (563), 190 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:16,215 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 619 transitions. [2024-10-13 13:16:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-10-13 13:16:16,222 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:16:16,222 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 1, 1, 1] [2024-10-13 13:16:16,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-13 13:16:16,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-13 13:16:16,422 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:16:16,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:16:16,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1412626783, now seen corresponding path program 5 times [2024-10-13 13:16:16,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:16:16,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744451862] [2024-10-13 13:16:16,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:16:16,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:16:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:16:20,686 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:20,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:16:20,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744451862] [2024-10-13 13:16:20,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744451862] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:16:20,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127636941] [2024-10-13 13:16:20,687 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 13:16:20,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:16:20,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:16:20,688 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:16:20,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 13:16:20,948 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-10-13 13:16:20,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:16:20,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-10-13 13:16:20,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:16:21,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:21,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:16:27,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:27,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127636941] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:16:27,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:16:27,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2024-10-13 13:16:27,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456597744] [2024-10-13 13:16:27,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:16:27,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2024-10-13 13:16:27,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:16:27,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2024-10-13 13:16:27,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-10-13 13:16:27,413 INFO L87 Difference]: Start difference. First operand 572 states and 619 transitions. Second operand has 190 states, 189 states have (on average 3.0) internal successors, (567), 190 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:27,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:16:27,882 INFO L93 Difference]: Finished difference Result 575 states and 622 transitions. [2024-10-13 13:16:27,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2024-10-13 13:16:27,882 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.0) internal successors, (567), 190 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 284 [2024-10-13 13:16:27,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:16:27,884 INFO L225 Difference]: With dead ends: 575 [2024-10-13 13:16:27,885 INFO L226 Difference]: Without dead ends: 574 [2024-10-13 13:16:27,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2024-10-13 13:16:27,887 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:16:27,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:16:27,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-10-13 13:16:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2024-10-13 13:16:27,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 572 states have (on average 1.0034965034965035) internal successors, (574), 573 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 574 transitions. [2024-10-13 13:16:27,901 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 574 transitions. Word has length 284 [2024-10-13 13:16:27,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:16:27,902 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 574 transitions. [2024-10-13 13:16:27,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.0) internal successors, (567), 190 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:16:27,903 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 574 transitions. [2024-10-13 13:16:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2024-10-13 13:16:27,911 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:16:27,912 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 1, 1, 1] [2024-10-13 13:16:27,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-13 13:16:28,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-13 13:16:28,117 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-13 13:16:28,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:16:28,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1124958637, now seen corresponding path program 6 times [2024-10-13 13:16:28,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:16:28,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904195024] [2024-10-13 13:16:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:16:28,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:16:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:16:45,234 INFO L134 CoverageAnalysis]: Checked inductivity of 26602 backedges. 0 proven. 26602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:45,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:16:45,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904195024] [2024-10-13 13:16:45,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904195024] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:16:45,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840153079] [2024-10-13 13:16:45,235 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-13 13:16:45,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:16:45,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:16:45,236 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:16:45,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 13:16:45,962 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-10-13 13:16:45,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:16:45,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-10-13 13:16:45,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:16:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 26602 backedges. 0 proven. 26602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:16:46,495 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:17:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 26602 backedges. 0 proven. 26602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 13:17:10,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840153079] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:17:10,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:17:10,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2024-10-13 13:17:10,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131488187] [2024-10-13 13:17:10,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:17:10,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2024-10-13 13:17:10,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:17:10,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2024-10-13 13:17:10,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2024-10-13 13:17:10,637 INFO L87 Difference]: Start difference. First operand 574 states and 574 transitions. Second operand has 382 states, 381 states have (on average 2.989501312335958) internal successors, (1139), 382 states have internal predecessors, (1139), 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)