./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 1ab1611c68b20ff5721c195b0d2c7506cb1678fd2a0003f8a2214f630d652abe --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:13:45,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:13:45,312 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-14 20:13:45,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:13:45,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:13:45,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:13:45,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:13:45,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:13:45,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:13:45,350 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:13:45,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:13:45,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:13:45,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:13:45,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:13:45,353 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:13:45,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:13:45,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:13:45,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:13:45,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:13:45,357 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:13:45,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:13:45,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:13:45,358 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:13:45,358 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:13:45,359 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:13:45,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:13:45,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:13:45,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:13:45,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:13:45,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:13:45,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:13:45,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:13:45,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:13:45,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:13:45,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:13:45,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:13:45,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:13:45,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:13:45,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:13:45,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:13:45,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:13:45,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ab1611c68b20ff5721c195b0d2c7506cb1678fd2a0003f8a2214f630d652abe [2024-10-14 20:13:45,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:13:45,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:13:45,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:13:45,645 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:13:45,645 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:13:45,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c [2024-10-14 20:13:47,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:13:47,224 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:13:47,225 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex5.c [2024-10-14 20:13:47,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1249d1f/bc610ffb33fd469c929ebee385321c69/FLAG00076ae53 [2024-10-14 20:13:47,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1249d1f/bc610ffb33fd469c929ebee385321c69 [2024-10-14 20:13:47,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:13:47,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:13:47,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:13:47,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:13:47,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:13:47,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793eee08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47, skipping insertion in model container [2024-10-14 20:13:47,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:13:47,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:13:47,438 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:13:47,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:13:47,473 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:13:47,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47 WrapperNode [2024-10-14 20:13:47,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:13:47,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:13:47,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:13:47,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:13:47,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,503 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2024-10-14 20:13:47,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:13:47,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:13:47,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:13:47,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:13:47,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,521 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,527 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-14 20:13:47,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:13:47,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:13:47,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:13:47,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:13:47,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (1/1) ... [2024-10-14 20:13:47,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:13:47,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:47,590 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) [2024-10-14 20:13:47,593 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 [2024-10-14 20:13:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-10-14 20:13:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-10-14 20:13:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:13:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:13:47,704 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:13:47,706 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:13:47,833 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-14 20:13:47,834 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:13:47,856 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:13:47,858 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 20:13:47,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:13:47 BoogieIcfgContainer [2024-10-14 20:13:47,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:13:47,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:13:47,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:13:47,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:13:47,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:13:47" (1/3) ... [2024-10-14 20:13:47,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae0132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:13:47, skipping insertion in model container [2024-10-14 20:13:47,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:13:47" (2/3) ... [2024-10-14 20:13:47,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae0132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:13:47, skipping insertion in model container [2024-10-14 20:13:47,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:13:47" (3/3) ... [2024-10-14 20:13:47,867 INFO L112 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex5.c [2024-10-14 20:13:47,882 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:13:47,882 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 20:13:47,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:13:47,945 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;@78891292, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:13:47,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 20:13:47,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.5) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:13:47,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 20:13:47,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:47,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:47,959 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:47,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:47,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2061618461, now seen corresponding path program 1 times [2024-10-14 20:13:47,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:47,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886914288] [2024-10-14 20:13:47,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:47,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:48,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:48,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:48,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886914288] [2024-10-14 20:13:48,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886914288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:13:48,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:13:48,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:13:48,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534649236] [2024-10-14 20:13:48,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:13:48,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:13:48,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:13:48,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:13:48,238 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.5) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:48,399 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2024-10-14 20:13:48,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:13:48,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-14 20:13:48,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:48,408 INFO L225 Difference]: With dead ends: 43 [2024-10-14 20:13:48,408 INFO L226 Difference]: Without dead ends: 28 [2024-10-14 20:13:48,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:13:48,414 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 26 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:48,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 68 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:13:48,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-14 20:13:48,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2024-10-14 20:13:48,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-10-14 20:13:48,450 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 7 [2024-10-14 20:13:48,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:48,450 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-10-14 20:13:48,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,451 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-10-14 20:13:48,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 20:13:48,451 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:48,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:48,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:13:48,452 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:48,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:48,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2061618685, now seen corresponding path program 1 times [2024-10-14 20:13:48,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:48,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734721304] [2024-10-14 20:13:48,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:48,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:48,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:48,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734721304] [2024-10-14 20:13:48,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734721304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:13:48,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:13:48,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:13:48,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281582584] [2024-10-14 20:13:48,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:13:48,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:13:48,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:48,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:13:48,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:13:48,556 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:48,614 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2024-10-14 20:13:48,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:13:48,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-14 20:13:48,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:48,615 INFO L225 Difference]: With dead ends: 28 [2024-10-14 20:13:48,616 INFO L226 Difference]: Without dead ends: 27 [2024-10-14 20:13:48,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:13:48,617 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:48,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 36 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:13:48,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-14 20:13:48,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2024-10-14 20:13:48,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2024-10-14 20:13:48,626 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 7 [2024-10-14 20:13:48,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:48,627 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-10-14 20:13:48,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,628 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2024-10-14 20:13:48,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:13:48,628 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:48,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:48,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:13:48,630 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:48,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:48,631 INFO L85 PathProgramCache]: Analyzing trace with hash -514337108, now seen corresponding path program 1 times [2024-10-14 20:13:48,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:48,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154390663] [2024-10-14 20:13:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:48,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:48,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:48,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:48,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154390663] [2024-10-14 20:13:48,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154390663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:13:48,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:13:48,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:13:48,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153997847] [2024-10-14 20:13:48,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:13:48,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:13:48,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:48,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:13:48,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:13:48,697 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:48,745 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2024-10-14 20:13:48,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:13:48,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 20:13:48,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:48,747 INFO L225 Difference]: With dead ends: 34 [2024-10-14 20:13:48,747 INFO L226 Difference]: Without dead ends: 33 [2024-10-14 20:13:48,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:13:48,750 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:48,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:13:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-10-14 20:13:48,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2024-10-14 20:13:48,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 23 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-10-14 20:13:48,760 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 8 [2024-10-14 20:13:48,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:48,762 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-10-14 20:13:48,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,762 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-10-14 20:13:48,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:13:48,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:48,763 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:48,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 20:13:48,764 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:48,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:48,769 INFO L85 PathProgramCache]: Analyzing trace with hash -514330157, now seen corresponding path program 1 times [2024-10-14 20:13:48,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:48,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853765791] [2024-10-14 20:13:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:48,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:48,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:48,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:48,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853765791] [2024-10-14 20:13:48,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853765791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:13:48,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:13:48,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:13:48,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537229605] [2024-10-14 20:13:48,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:13:48,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:13:48,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:48,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:13:48,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:13:48,839 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:48,891 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2024-10-14 20:13:48,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:13:48,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 20:13:48,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:48,893 INFO L225 Difference]: With dead ends: 32 [2024-10-14 20:13:48,893 INFO L226 Difference]: Without dead ends: 31 [2024-10-14 20:13:48,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:13:48,896 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:48,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:13:48,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-14 20:13:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2024-10-14 20:13:48,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.4) internal successors, (28), 24 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-10-14 20:13:48,902 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 8 [2024-10-14 20:13:48,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:48,903 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-10-14 20:13:48,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:48,903 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-10-14 20:13:48,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:13:48,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:48,904 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:48,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:13:48,905 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:48,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:48,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1285700867, now seen corresponding path program 1 times [2024-10-14 20:13:48,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:48,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206931337] [2024-10-14 20:13:48,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:48,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:49,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:49,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206931337] [2024-10-14 20:13:49,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206931337] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:49,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330473418] [2024-10-14 20:13:49,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:49,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:49,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:49,035 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) [2024-10-14 20:13:49,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:13:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:49,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:13:49,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:49,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:49,137 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:49,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330473418] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:49,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:49,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-14 20:13:49,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778682984] [2024-10-14 20:13:49,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:49,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:13:49,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:49,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:13:49,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:13:49,228 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:49,371 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2024-10-14 20:13:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:13:49,372 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-14 20:13:49,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:49,373 INFO L225 Difference]: With dead ends: 65 [2024-10-14 20:13:49,373 INFO L226 Difference]: Without dead ends: 64 [2024-10-14 20:13:49,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:13:49,375 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 82 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:49,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 91 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:13:49,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-14 20:13:49,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 46. [2024-10-14 20:13:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 39 states have internal predecessors, (46), 7 states have call successors, (7), 6 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2024-10-14 20:13:49,384 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 13 [2024-10-14 20:13:49,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:49,385 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2024-10-14 20:13:49,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:49,385 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2024-10-14 20:13:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:13:49,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:49,386 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:49,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 20:13:49,586 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 [2024-10-14 20:13:49,587 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:49,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:49,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1285700643, now seen corresponding path program 1 times [2024-10-14 20:13:49,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:49,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288208476] [2024-10-14 20:13:49,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:49,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:49,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:49,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288208476] [2024-10-14 20:13:49,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288208476] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:49,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177173407] [2024-10-14 20:13:49,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:49,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:49,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:49,672 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) [2024-10-14 20:13:49,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:13:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:49,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:13:49,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:49,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:49,746 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:13:49,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177173407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:13:49,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:13:49,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-14 20:13:49,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108382094] [2024-10-14 20:13:49,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:13:49,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:13:49,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:49,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:13:49,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:13:49,749 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:49,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:49,813 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2024-10-14 20:13:49,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:13:49,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-14 20:13:49,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:49,815 INFO L225 Difference]: With dead ends: 59 [2024-10-14 20:13:49,815 INFO L226 Difference]: Without dead ends: 58 [2024-10-14 20:13:49,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:13:49,816 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:49,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 42 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:13:49,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-14 20:13:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2024-10-14 20:13:49,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 42 states have internal predecessors, (51), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2024-10-14 20:13:49,837 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 13 [2024-10-14 20:13:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:49,838 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2024-10-14 20:13:49,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:49,838 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2024-10-14 20:13:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:13:49,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:49,839 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:49,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:13:50,039 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 [2024-10-14 20:13:50,040 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:50,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:50,040 INFO L85 PathProgramCache]: Analyzing trace with hash 148879160, now seen corresponding path program 1 times [2024-10-14 20:13:50,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:50,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564971741] [2024-10-14 20:13:50,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:50,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:50,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:50,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564971741] [2024-10-14 20:13:50,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564971741] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:50,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839223422] [2024-10-14 20:13:50,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:50,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:50,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:50,101 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) [2024-10-14 20:13:50,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:13:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:50,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:13:50,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:50,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:50,163 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:50,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:50,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839223422] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:50,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:50,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-14 20:13:50,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52616663] [2024-10-14 20:13:50,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:50,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:13:50,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:50,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:13:50,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:13:50,234 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:50,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:50,475 INFO L93 Difference]: Finished difference Result 100 states and 114 transitions. [2024-10-14 20:13:50,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 20:13:50,475 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-14 20:13:50,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:50,479 INFO L225 Difference]: With dead ends: 100 [2024-10-14 20:13:50,479 INFO L226 Difference]: Without dead ends: 98 [2024-10-14 20:13:50,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-10-14 20:13:50,480 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 103 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:50,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 84 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:13:50,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-10-14 20:13:50,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 73. [2024-10-14 20:13:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 58 states have (on average 1.3448275862068966) internal successors, (78), 61 states have internal predecessors, (78), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:50,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2024-10-14 20:13:50,495 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 13 [2024-10-14 20:13:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:50,495 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2024-10-14 20:13:50,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:50,495 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2024-10-14 20:13:50,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:13:50,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:50,496 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:50,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 20:13:50,700 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 [2024-10-14 20:13:50,701 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:50,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:50,701 INFO L85 PathProgramCache]: Analyzing trace with hash 148879384, now seen corresponding path program 1 times [2024-10-14 20:13:50,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:50,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054253305] [2024-10-14 20:13:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:50,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:50,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:50,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054253305] [2024-10-14 20:13:50,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054253305] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:50,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376409420] [2024-10-14 20:13:50,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:50,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:50,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:50,770 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) [2024-10-14 20:13:50,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:13:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:50,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:13:50,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:50,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:50,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:50,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376409420] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:50,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:50,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-14 20:13:50,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536746421] [2024-10-14 20:13:50,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:50,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:13:50,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:50,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:13:50,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:13:50,891 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:51,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:51,246 INFO L93 Difference]: Finished difference Result 116 states and 135 transitions. [2024-10-14 20:13:51,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 20:13:51,248 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-14 20:13:51,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:51,251 INFO L225 Difference]: With dead ends: 116 [2024-10-14 20:13:51,251 INFO L226 Difference]: Without dead ends: 114 [2024-10-14 20:13:51,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2024-10-14 20:13:51,256 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 101 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:51,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 62 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:13:51,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-14 20:13:51,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 88. [2024-10-14 20:13:51,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 74 states have internal predecessors, (94), 14 states have call successors, (14), 13 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:51,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2024-10-14 20:13:51,275 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 13 [2024-10-14 20:13:51,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:51,275 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2024-10-14 20:13:51,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:51,275 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2024-10-14 20:13:51,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:13:51,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:51,276 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:51,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:13:51,480 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 [2024-10-14 20:13:51,481 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:51,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:51,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1202014221, now seen corresponding path program 1 times [2024-10-14 20:13:51,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:51,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79570806] [2024-10-14 20:13:51,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:51,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:51,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:51,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79570806] [2024-10-14 20:13:51,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79570806] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:51,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644224649] [2024-10-14 20:13:51,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:51,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:51,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:51,568 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) [2024-10-14 20:13:51,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:13:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:51,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:13:51,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:51,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:51,636 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:13:51,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644224649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:13:51,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:13:51,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-10-14 20:13:51,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489408928] [2024-10-14 20:13:51,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:13:51,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:13:51,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:51,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:13:51,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:13:51,638 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:51,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:51,697 INFO L93 Difference]: Finished difference Result 101 states and 122 transitions. [2024-10-14 20:13:51,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:13:51,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 20:13:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:51,699 INFO L225 Difference]: With dead ends: 101 [2024-10-14 20:13:51,699 INFO L226 Difference]: Without dead ends: 100 [2024-10-14 20:13:51,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:13:51,700 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 10 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:51,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:13:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-10-14 20:13:51,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2024-10-14 20:13:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 78 states have internal predecessors, (98), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 112 transitions. [2024-10-14 20:13:51,721 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 112 transitions. Word has length 14 [2024-10-14 20:13:51,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:51,721 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 112 transitions. [2024-10-14 20:13:51,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 112 transitions. [2024-10-14 20:13:51,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:13:51,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:51,722 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:51,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:13:51,923 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 [2024-10-14 20:13:51,923 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:51,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash 320286705, now seen corresponding path program 1 times [2024-10-14 20:13:51,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:51,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802396412] [2024-10-14 20:13:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:51,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:51,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:51,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:51,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802396412] [2024-10-14 20:13:51,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802396412] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:51,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029593627] [2024-10-14 20:13:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:51,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:51,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:51,988 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) [2024-10-14 20:13:51,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:13:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:52,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:13:52,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:52,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:52,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:13:52,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029593627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:13:52,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:13:52,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-10-14 20:13:52,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936850351] [2024-10-14 20:13:52,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:13:52,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:13:52,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:52,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:13:52,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:13:52,065 INFO L87 Difference]: Start difference. First operand 93 states and 112 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:52,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:52,122 INFO L93 Difference]: Finished difference Result 97 states and 115 transitions. [2024-10-14 20:13:52,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:13:52,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 20:13:52,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:52,124 INFO L225 Difference]: With dead ends: 97 [2024-10-14 20:13:52,124 INFO L226 Difference]: Without dead ends: 96 [2024-10-14 20:13:52,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:13:52,125 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:52,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 44 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:13:52,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-10-14 20:13:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 85. [2024-10-14 20:13:52,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 71 states have internal predecessors, (88), 13 states have call successors, (13), 13 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:52,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 101 transitions. [2024-10-14 20:13:52,143 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 101 transitions. Word has length 14 [2024-10-14 20:13:52,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:52,143 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 101 transitions. [2024-10-14 20:13:52,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:52,143 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 101 transitions. [2024-10-14 20:13:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:13:52,144 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:52,144 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:52,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 20:13:52,344 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 [2024-10-14 20:13:52,345 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:52,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:52,346 INFO L85 PathProgramCache]: Analyzing trace with hash 320293656, now seen corresponding path program 1 times [2024-10-14 20:13:52,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:52,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156365672] [2024-10-14 20:13:52,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:52,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:52,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:52,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:52,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156365672] [2024-10-14 20:13:52,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156365672] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:52,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819463220] [2024-10-14 20:13:52,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:52,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:52,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:52,406 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) [2024-10-14 20:13:52,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:13:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:52,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:13:52,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:52,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:52,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:52,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819463220] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:52,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:52,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 20:13:52,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902432745] [2024-10-14 20:13:52,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:52,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:13:52,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:52,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:13:52,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:13:52,523 INFO L87 Difference]: Start difference. First operand 85 states and 101 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:52,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:52,643 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2024-10-14 20:13:52,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:13:52,644 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 20:13:52,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:52,645 INFO L225 Difference]: With dead ends: 85 [2024-10-14 20:13:52,646 INFO L226 Difference]: Without dead ends: 84 [2024-10-14 20:13:52,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:13:52,647 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 35 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:52,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 30 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:13:52,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-14 20:13:52,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2024-10-14 20:13:52,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 61 states have (on average 1.2131147540983607) internal successors, (74), 64 states have internal predecessors, (74), 13 states have call successors, (13), 11 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2024-10-14 20:13:52,660 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 14 [2024-10-14 20:13:52,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:52,660 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2024-10-14 20:13:52,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2024-10-14 20:13:52,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 20:13:52,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:52,663 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:52,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:13:52,867 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 [2024-10-14 20:13:52,868 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:52,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:52,868 INFO L85 PathProgramCache]: Analyzing trace with hash -920786184, now seen corresponding path program 1 times [2024-10-14 20:13:52,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:52,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922874288] [2024-10-14 20:13:52,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:52,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:52,958 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:52,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:52,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922874288] [2024-10-14 20:13:52,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922874288] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:52,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339408787] [2024-10-14 20:13:52,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:52,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:52,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:52,961 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) [2024-10-14 20:13:52,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:13:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:53,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:13:53,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:53,087 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:53,236 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:53,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339408787] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:53,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:53,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 21 [2024-10-14 20:13:53,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89870506] [2024-10-14 20:13:53,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:53,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-14 20:13:53,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:53,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-14 20:13:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-10-14 20:13:53,238 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 22 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 13 states have internal predecessors, (50), 9 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:53,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:53,887 INFO L93 Difference]: Finished difference Result 150 states and 174 transitions. [2024-10-14 20:13:53,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-14 20:13:53,887 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 13 states have internal predecessors, (50), 9 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-10-14 20:13:53,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:53,888 INFO L225 Difference]: With dead ends: 150 [2024-10-14 20:13:53,889 INFO L226 Difference]: Without dead ends: 148 [2024-10-14 20:13:53,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=477, Invalid=1875, Unknown=0, NotChecked=0, Total=2352 [2024-10-14 20:13:53,890 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 290 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:53,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 73 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:13:53,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-10-14 20:13:53,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 76. [2024-10-14 20:13:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 63 states have internal predecessors, (76), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:53,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2024-10-14 20:13:53,903 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 25 [2024-10-14 20:13:53,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:53,903 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2024-10-14 20:13:53,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 13 states have internal predecessors, (50), 9 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:53,903 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2024-10-14 20:13:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 20:13:53,907 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:53,907 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:13:53,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 20:13:54,108 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 [2024-10-14 20:13:54,109 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:54,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:54,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1081843821, now seen corresponding path program 1 times [2024-10-14 20:13:54,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:54,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318948960] [2024-10-14 20:13:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:54,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:54,216 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:54,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:54,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318948960] [2024-10-14 20:13:54,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318948960] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:54,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304878712] [2024-10-14 20:13:54,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:54,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:54,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:54,219 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) [2024-10-14 20:13:54,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:13:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:54,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:13:54,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:54,290 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:54,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:54,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304878712] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:54,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:54,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-10-14 20:13:54,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159074187] [2024-10-14 20:13:54,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:54,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 20:13:54,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:54,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 20:13:54,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-10-14 20:13:54,423 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 12 states have internal predecessors, (41), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:54,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:54,891 INFO L93 Difference]: Finished difference Result 194 states and 221 transitions. [2024-10-14 20:13:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 20:13:54,892 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 12 states have internal predecessors, (41), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-10-14 20:13:54,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:54,893 INFO L225 Difference]: With dead ends: 194 [2024-10-14 20:13:54,893 INFO L226 Difference]: Without dead ends: 192 [2024-10-14 20:13:54,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=1405, Unknown=0, NotChecked=0, Total=1722 [2024-10-14 20:13:54,895 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 129 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:54,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 78 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:13:54,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-10-14 20:13:54,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 118. [2024-10-14 20:13:54,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 98 states have internal predecessors, (118), 19 states have call successors, (19), 19 states have call predecessors, (19), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:54,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2024-10-14 20:13:54,916 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 25 [2024-10-14 20:13:54,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:54,916 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2024-10-14 20:13:54,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.411764705882353) internal successors, (41), 12 states have internal predecessors, (41), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:54,916 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2024-10-14 20:13:54,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:13:54,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:54,917 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:13:54,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-14 20:13:55,121 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 [2024-10-14 20:13:55,122 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:55,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:55,122 INFO L85 PathProgramCache]: Analyzing trace with hash 563973966, now seen corresponding path program 2 times [2024-10-14 20:13:55,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:55,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184614454] [2024-10-14 20:13:55,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:55,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 18 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:55,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:55,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184614454] [2024-10-14 20:13:55,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184614454] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:55,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405832471] [2024-10-14 20:13:55,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:13:55,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:55,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:55,294 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) [2024-10-14 20:13:55,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:13:55,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:13:55,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:13:55,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 20:13:55,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:55,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:55,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405832471] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:55,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:55,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 14] total 29 [2024-10-14 20:13:55,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679966369] [2024-10-14 20:13:55,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:55,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-14 20:13:55,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:55,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-14 20:13:55,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2024-10-14 20:13:55,650 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand has 30 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 17 states have internal predecessors, (70), 13 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:56,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:56,680 INFO L93 Difference]: Finished difference Result 262 states and 302 transitions. [2024-10-14 20:13:56,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-10-14 20:13:56,680 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 17 states have internal predecessors, (70), 13 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-10-14 20:13:56,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:56,681 INFO L225 Difference]: With dead ends: 262 [2024-10-14 20:13:56,681 INFO L226 Difference]: Without dead ends: 260 [2024-10-14 20:13:56,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1769 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1149, Invalid=5013, Unknown=0, NotChecked=0, Total=6162 [2024-10-14 20:13:56,683 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 424 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:56,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 86 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:13:56,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-10-14 20:13:56,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 143. [2024-10-14 20:13:56,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 118 states have (on average 1.2203389830508475) internal successors, (144), 119 states have internal predecessors, (144), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:56,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2024-10-14 20:13:56,701 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 37 [2024-10-14 20:13:56,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:56,702 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2024-10-14 20:13:56,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 2.5925925925925926) internal successors, (70), 17 states have internal predecessors, (70), 13 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:56,702 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2024-10-14 20:13:56,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:13:56,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:56,703 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:13:56,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 20:13:56,903 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 [2024-10-14 20:13:56,904 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:56,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:56,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1302682194, now seen corresponding path program 2 times [2024-10-14 20:13:56,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:56,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782411406] [2024-10-14 20:13:56,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:56,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:57,014 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 34 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:13:57,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:57,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782411406] [2024-10-14 20:13:57,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782411406] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:57,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534563016] [2024-10-14 20:13:57,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:13:57,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:57,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:57,016 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) [2024-10-14 20:13:57,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:13:57,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:13:57,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:13:57,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 20:13:57,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 35 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:13:57,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 41 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:13:57,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534563016] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:57,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:57,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 24 [2024-10-14 20:13:57,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528084007] [2024-10-14 20:13:57,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:57,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 20:13:57,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:57,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 20:13:57,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2024-10-14 20:13:57,348 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand has 24 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 14 states have internal predecessors, (56), 8 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:57,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:57,831 INFO L93 Difference]: Finished difference Result 405 states and 472 transitions. [2024-10-14 20:13:57,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 20:13:57,832 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 14 states have internal predecessors, (56), 8 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-10-14 20:13:57,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:57,833 INFO L225 Difference]: With dead ends: 405 [2024-10-14 20:13:57,833 INFO L226 Difference]: Without dead ends: 329 [2024-10-14 20:13:57,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 57 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=299, Invalid=1341, Unknown=0, NotChecked=0, Total=1640 [2024-10-14 20:13:57,835 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 100 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:57,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 146 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:13:57,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-10-14 20:13:57,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 259. [2024-10-14 20:13:57,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 213 states have (on average 1.1690140845070423) internal successors, (249), 218 states have internal predecessors, (249), 44 states have call successors, (44), 40 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 293 transitions. [2024-10-14 20:13:57,874 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 293 transitions. Word has length 37 [2024-10-14 20:13:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:57,875 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 293 transitions. [2024-10-14 20:13:57,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 14 states have internal predecessors, (56), 8 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 293 transitions. [2024-10-14 20:13:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:13:57,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:57,877 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2024-10-14 20:13:57,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-14 20:13:58,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 20:13:58,077 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:58,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:58,078 INFO L85 PathProgramCache]: Analyzing trace with hash -413745884, now seen corresponding path program 2 times [2024-10-14 20:13:58,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:58,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5848116] [2024-10-14 20:13:58,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:58,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:58,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5848116] [2024-10-14 20:13:58,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5848116] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:58,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799225686] [2024-10-14 20:13:58,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:13:58,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:58,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:58,274 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:13:58,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:13:58,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:13:58,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:13:58,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 20:13:58,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:58,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:13:58,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799225686] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:58,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:58,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2024-10-14 20:13:58,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106574437] [2024-10-14 20:13:58,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:58,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-14 20:13:58,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:58,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-14 20:13:58,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2024-10-14 20:13:58,557 INFO L87 Difference]: Start difference. First operand 259 states and 293 transitions. Second operand has 28 states, 25 states have (on average 2.44) internal successors, (61), 16 states have internal predecessors, (61), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:59,432 INFO L93 Difference]: Finished difference Result 581 states and 643 transitions. [2024-10-14 20:13:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-10-14 20:13:59,433 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 2.44) internal successors, (61), 16 states have internal predecessors, (61), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-10-14 20:13:59,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:59,435 INFO L225 Difference]: With dead ends: 581 [2024-10-14 20:13:59,435 INFO L226 Difference]: Without dead ends: 579 [2024-10-14 20:13:59,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1420 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=981, Invalid=4275, Unknown=0, NotChecked=0, Total=5256 [2024-10-14 20:13:59,438 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 546 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:59,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 84 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:13:59,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-10-14 20:13:59,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 300. [2024-10-14 20:13:59,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 247 states have (on average 1.174089068825911) internal successors, (290), 252 states have internal predecessors, (290), 51 states have call successors, (51), 47 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:59,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 341 transitions. [2024-10-14 20:13:59,497 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 341 transitions. Word has length 37 [2024-10-14 20:13:59,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:59,497 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 341 transitions. [2024-10-14 20:13:59,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 2.44) internal successors, (61), 16 states have internal predecessors, (61), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:59,497 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 341 transitions. [2024-10-14 20:13:59,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-14 20:13:59,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:59,498 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:13:59,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-14 20:13:59,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 20:13:59,699 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:13:59,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:59,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1885220932, now seen corresponding path program 3 times [2024-10-14 20:13:59,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:59,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702184701] [2024-10-14 20:13:59,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:59,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:59,854 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 68 proven. 39 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:13:59,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:59,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702184701] [2024-10-14 20:13:59,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702184701] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:59,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193960444] [2024-10-14 20:13:59,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:13:59,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:59,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:59,857 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:13:59,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 20:13:59,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-14 20:13:59,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:13:59,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:13:59,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:59,947 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 82 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-14 20:13:59,947 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:59,958 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 82 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-14 20:13:59,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193960444] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:59,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:59,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 14 [2024-10-14 20:13:59,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798927749] [2024-10-14 20:13:59,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:59,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 20:13:59,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:59,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 20:13:59,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:13:59,961 INFO L87 Difference]: Start difference. First operand 300 states and 341 transitions. Second operand has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 9 states have internal predecessors, (47), 7 states have call successors, (11), 7 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:00,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:14:00,120 INFO L93 Difference]: Finished difference Result 333 states and 379 transitions. [2024-10-14 20:14:00,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:14:00,121 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 9 states have internal predecessors, (47), 7 states have call successors, (11), 7 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-10-14 20:14:00,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:14:00,121 INFO L225 Difference]: With dead ends: 333 [2024-10-14 20:14:00,121 INFO L226 Difference]: Without dead ends: 141 [2024-10-14 20:14:00,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-10-14 20:14:00,125 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 31 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:14:00,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 59 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:14:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-10-14 20:14:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 117. [2024-10-14 20:14:00,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.0309278350515463) internal successors, (100), 97 states have internal predecessors, (100), 19 states have call successors, (19), 19 states have call predecessors, (19), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2024-10-14 20:14:00,141 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 49 [2024-10-14 20:14:00,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:14:00,141 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2024-10-14 20:14:00,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 9 states have internal predecessors, (47), 7 states have call successors, (11), 7 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:00,142 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2024-10-14 20:14:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 20:14:00,142 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:14:00,143 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:14:00,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 20:14:00,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-14 20:14:00,347 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:14:00,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:14:00,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1674923445, now seen corresponding path program 4 times [2024-10-14 20:14:00,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:14:00,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468604996] [2024-10-14 20:14:00,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:14:00,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:14:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:14:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:00,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:14:00,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468604996] [2024-10-14 20:14:00,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468604996] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:14:00,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479080475] [2024-10-14 20:14:00,639 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:14:00,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:00,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:14:00,642 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:14:00,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 20:14:00,685 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:14:00,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:14:00,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 20:14:00,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:14:00,762 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:00,762 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:14:01,192 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:01,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479080475] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:14:01,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:14:01,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 43 [2024-10-14 20:14:01,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720236157] [2024-10-14 20:14:01,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:14:01,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-10-14 20:14:01,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:14:01,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-10-14 20:14:01,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1626, Unknown=0, NotChecked=0, Total=1892 [2024-10-14 20:14:01,195 INFO L87 Difference]: Start difference. First operand 117 states and 119 transitions. Second operand has 44 states, 41 states have (on average 2.4634146341463414) internal successors, (101), 24 states have internal predecessors, (101), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:02,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:14:02,553 INFO L93 Difference]: Finished difference Result 246 states and 262 transitions. [2024-10-14 20:14:02,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-10-14 20:14:02,553 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 41 states have (on average 2.4634146341463414) internal successors, (101), 24 states have internal predecessors, (101), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-10-14 20:14:02,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:14:02,554 INFO L225 Difference]: With dead ends: 246 [2024-10-14 20:14:02,554 INFO L226 Difference]: Without dead ends: 245 [2024-10-14 20:14:02,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3422 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2251, Invalid=9739, Unknown=0, NotChecked=0, Total=11990 [2024-10-14 20:14:02,558 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 768 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:14:02,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 63 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:14:02,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-10-14 20:14:02,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 237. [2024-10-14 20:14:02,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 197 states have (on average 1.0304568527918783) internal successors, (203), 197 states have internal predecessors, (203), 39 states have call successors, (39), 39 states have call predecessors, (39), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:02,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 242 transitions. [2024-10-14 20:14:02,600 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 242 transitions. Word has length 61 [2024-10-14 20:14:02,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:14:02,600 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 242 transitions. [2024-10-14 20:14:02,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 41 states have (on average 2.4634146341463414) internal successors, (101), 24 states have internal predecessors, (101), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:02,601 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 242 transitions. [2024-10-14 20:14:02,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-14 20:14:02,601 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:14:02,602 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 1, 1, 1, 1] [2024-10-14 20:14:02,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-14 20:14:02,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:02,806 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:14:02,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:14:02,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1573091009, now seen corresponding path program 2 times [2024-10-14 20:14:02,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:14:02,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137695078] [2024-10-14 20:14:02,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:14:02,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:14:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:14:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:03,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:14:03,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137695078] [2024-10-14 20:14:03,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137695078] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:14:03,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74171999] [2024-10-14 20:14:03,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:14:03,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:03,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:14:03,286 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:14:03,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 20:14:03,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:14:03,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:14:03,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 20:14:03,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:14:03,453 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:03,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:14:03,996 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:03,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74171999] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:14:03,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:14:03,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 55 [2024-10-14 20:14:03,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229900010] [2024-10-14 20:14:03,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:14:03,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-10-14 20:14:03,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:14:03,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-10-14 20:14:03,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=2656, Unknown=0, NotChecked=0, Total=3080 [2024-10-14 20:14:03,999 INFO L87 Difference]: Start difference. First operand 237 states and 242 transitions. Second operand has 56 states, 53 states have (on average 2.4716981132075473) internal successors, (131), 30 states have internal predecessors, (131), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:04,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:14:04,787 INFO L93 Difference]: Finished difference Result 278 states and 285 transitions. [2024-10-14 20:14:04,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-10-14 20:14:04,788 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 53 states have (on average 2.4716981132075473) internal successors, (131), 30 states have internal predecessors, (131), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-14 20:14:04,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:14:04,789 INFO L225 Difference]: With dead ends: 278 [2024-10-14 20:14:04,789 INFO L226 Difference]: Without dead ends: 277 [2024-10-14 20:14:04,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2350 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1323, Invalid=7419, Unknown=0, NotChecked=0, Total=8742 [2024-10-14 20:14:04,792 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 401 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:14:04,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 142 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:14:04,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-10-14 20:14:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 267. [2024-10-14 20:14:04,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 222 states have (on average 1.018018018018018) internal successors, (226), 222 states have internal predecessors, (226), 44 states have call successors, (44), 44 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:04,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 270 transitions. [2024-10-14 20:14:04,824 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 270 transitions. Word has length 79 [2024-10-14 20:14:04,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:14:04,824 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 270 transitions. [2024-10-14 20:14:04,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 53 states have (on average 2.4716981132075473) internal successors, (131), 30 states have internal predecessors, (131), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:04,825 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 270 transitions. [2024-10-14 20:14:04,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 20:14:04,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:14:04,826 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:14:04,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-14 20:14:05,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:05,027 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:14:05,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:14:05,027 INFO L85 PathProgramCache]: Analyzing trace with hash 170438942, now seen corresponding path program 5 times [2024-10-14 20:14:05,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:14:05,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299820714] [2024-10-14 20:14:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:14:05,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:14:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:14:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:05,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:14:05,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299820714] [2024-10-14 20:14:05,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299820714] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:14:05,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465382484] [2024-10-14 20:14:05,945 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 20:14:05,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:05,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:14:05,947 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:14:05,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 20:14:06,022 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2024-10-14 20:14:06,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:14:06,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-10-14 20:14:06,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:14:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:06,199 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:14:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:07,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465382484] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:14:07,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:14:07,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 44] total 87 [2024-10-14 20:14:07,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206858029] [2024-10-14 20:14:07,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:14:07,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-10-14 20:14:07,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:14:07,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-10-14 20:14:07,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1016, Invalid=6640, Unknown=0, NotChecked=0, Total=7656 [2024-10-14 20:14:07,399 INFO L87 Difference]: Start difference. First operand 267 states and 270 transitions. Second operand has 88 states, 85 states have (on average 2.4823529411764707) internal successors, (211), 46 states have internal predecessors, (211), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:11,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:14:11,861 INFO L93 Difference]: Finished difference Result 495 states and 525 transitions. [2024-10-14 20:14:11,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2024-10-14 20:14:11,862 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 85 states have (on average 2.4823529411764707) internal successors, (211), 46 states have internal predecessors, (211), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-10-14 20:14:11,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:14:11,864 INFO L225 Difference]: With dead ends: 495 [2024-10-14 20:14:11,864 INFO L226 Difference]: Without dead ends: 494 [2024-10-14 20:14:11,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16416 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=9399, Invalid=41451, Unknown=0, NotChecked=0, Total=50850 [2024-10-14 20:14:11,869 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 1062 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:14:11,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 81 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:14:11,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-10-14 20:14:11,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 483. [2024-10-14 20:14:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 402 states have (on average 1.0223880597014925) internal successors, (411), 402 states have internal predecessors, (411), 80 states have call successors, (80), 80 states have call predecessors, (80), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 491 transitions. [2024-10-14 20:14:11,927 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 491 transitions. Word has length 127 [2024-10-14 20:14:11,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:14:11,927 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 491 transitions. [2024-10-14 20:14:11,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 85 states have (on average 2.4823529411764707) internal successors, (211), 46 states have internal predecessors, (211), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:11,927 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 491 transitions. [2024-10-14 20:14:11,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-14 20:14:11,929 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:14:11,929 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 1, 1, 1, 1] [2024-10-14 20:14:11,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-14 20:14:12,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:12,130 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:14:12,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:14:12,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1228504197, now seen corresponding path program 3 times [2024-10-14 20:14:12,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:14:12,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722691101] [2024-10-14 20:14:12,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:14:12,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:14:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:14:13,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 0 proven. 2054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:13,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:14:13,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722691101] [2024-10-14 20:14:13,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722691101] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:14:13,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391409890] [2024-10-14 20:14:13,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:14:13,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:13,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:14:13,788 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:14:13,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 20:14:13,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-10-14 20:14:13,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:14:13,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-10-14 20:14:13,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:14:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 0 proven. 2054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:14,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:14:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 0 proven. 2054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:16,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391409890] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:14:16,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:14:16,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 111 [2024-10-14 20:14:16,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182696604] [2024-10-14 20:14:16,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:14:16,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2024-10-14 20:14:16,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:14:16,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2024-10-14 20:14:16,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1628, Invalid=10804, Unknown=0, NotChecked=0, Total=12432 [2024-10-14 20:14:16,017 INFO L87 Difference]: Start difference. First operand 483 states and 491 transitions. Second operand has 112 states, 109 states have (on average 2.4862385321100917) internal successors, (271), 58 states have internal predecessors, (271), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:14:18,773 INFO L93 Difference]: Finished difference Result 576 states and 590 transitions. [2024-10-14 20:14:18,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2024-10-14 20:14:18,774 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 109 states have (on average 2.4862385321100917) internal successors, (271), 58 states have internal predecessors, (271), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-10-14 20:14:18,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:14:18,776 INFO L225 Difference]: With dead ends: 576 [2024-10-14 20:14:18,776 INFO L226 Difference]: Without dead ends: 575 [2024-10-14 20:14:18,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11009 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=5383, Invalid=31289, Unknown=0, NotChecked=0, Total=36672 [2024-10-14 20:14:18,779 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 812 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:14:18,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 251 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:14:18,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-10-14 20:14:18,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 561. [2024-10-14 20:14:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 467 states have (on average 1.0171306209850106) internal successors, (475), 467 states have internal predecessors, (475), 93 states have call successors, (93), 93 states have call predecessors, (93), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 568 transitions. [2024-10-14 20:14:18,869 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 568 transitions. Word has length 163 [2024-10-14 20:14:18,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:14:18,869 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 568 transitions. [2024-10-14 20:14:18,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 109 states have (on average 2.4862385321100917) internal successors, (271), 58 states have internal predecessors, (271), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:18,870 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 568 transitions. [2024-10-14 20:14:18,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-14 20:14:18,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:14:18,873 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 41, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:14:18,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-14 20:14:19,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:19,074 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:14:19,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:14:19,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1285215509, now seen corresponding path program 6 times [2024-10-14 20:14:19,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:14:19,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538462400] [2024-10-14 20:14:19,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:14:19,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:14:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:14:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 0 proven. 4963 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:22,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:14:22,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538462400] [2024-10-14 20:14:22,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538462400] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:14:22,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811169823] [2024-10-14 20:14:22,169 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 20:14:22,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:22,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:14:22,170 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:14:22,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-14 20:14:22,297 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 42 check-sat command(s) [2024-10-14 20:14:22,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:14:22,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-10-14 20:14:22,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:14:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 0 proven. 4963 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:22,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:14:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4963 backedges. 0 proven. 4963 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:26,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811169823] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:14:26,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:14:26,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86, 86] total 171 [2024-10-14 20:14:26,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122299354] [2024-10-14 20:14:26,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:14:26,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2024-10-14 20:14:26,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:14:26,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2024-10-14 20:14:26,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3786, Invalid=25626, Unknown=0, NotChecked=0, Total=29412 [2024-10-14 20:14:26,620 INFO L87 Difference]: Start difference. First operand 561 states and 568 transitions. Second operand has 172 states, 169 states have (on average 2.4911242603550297) internal successors, (421), 88 states have internal predecessors, (421), 84 states have call successors, (84), 84 states have call predecessors, (84), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:43,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:14:43,271 INFO L93 Difference]: Finished difference Result 1025 states and 1089 transitions. [2024-10-14 20:14:43,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 378 states. [2024-10-14 20:14:43,272 INFO L78 Accepts]: Start accepts. Automaton has has 172 states, 169 states have (on average 2.4911242603550297) internal successors, (421), 88 states have internal predecessors, (421), 84 states have call successors, (84), 84 states have call predecessors, (84), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2024-10-14 20:14:43,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:14:43,276 INFO L225 Difference]: With dead ends: 1025 [2024-10-14 20:14:43,277 INFO L226 Difference]: Without dead ends: 1024 [2024-10-14 20:14:43,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 460 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70334 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=39019, Invalid=173963, Unknown=0, NotChecked=0, Total=212982 [2024-10-14 20:14:43,290 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 4164 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4164 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:14:43,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4164 Valid, 93 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:14:43,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2024-10-14 20:14:43,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1005. [2024-10-14 20:14:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 837 states have (on average 1.020310633213859) internal successors, (854), 837 states have internal predecessors, (854), 167 states have call successors, (167), 167 states have call predecessors, (167), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:43,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1021 transitions. [2024-10-14 20:14:43,436 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1021 transitions. Word has length 253 [2024-10-14 20:14:43,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:14:43,436 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1021 transitions. [2024-10-14 20:14:43,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 169 states have (on average 2.4911242603550297) internal successors, (421), 88 states have internal predecessors, (421), 84 states have call successors, (84), 84 states have call predecessors, (84), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1021 transitions. [2024-10-14 20:14:43,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-10-14 20:14:43,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:14:43,439 INFO L215 NwaCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 1, 1, 1, 1] [2024-10-14 20:14:43,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-14 20:14:43,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:43,640 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:14:43,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:14:43,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1639172591, now seen corresponding path program 4 times [2024-10-14 20:14:43,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:14:43,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612246402] [2024-10-14 20:14:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:14:43,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:14:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:14:48,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8802 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:48,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:14:48,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612246402] [2024-10-14 20:14:48,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612246402] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:14:48,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861649055] [2024-10-14 20:14:48,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:14:48,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:14:48,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:14:48,785 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:14:48,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-14 20:14:48,984 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:14:48,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:14:48,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-10-14 20:14:48,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:14:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 8802 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:49,338 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:14:56,107 INFO L134 CoverageAnalysis]: Checked inductivity of 8802 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:56,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861649055] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:14:56,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:14:56,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 112, 112] total 223 [2024-10-14 20:14:56,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86237687] [2024-10-14 20:14:56,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:14:56,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 224 states [2024-10-14 20:14:56,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:14:56,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 224 interpolants. [2024-10-14 20:14:56,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6388, Invalid=43564, Unknown=0, NotChecked=0, Total=49952 [2024-10-14 20:14:56,115 INFO L87 Difference]: Start difference. First operand 1005 states and 1021 transitions. Second operand has 224 states, 221 states have (on average 2.493212669683258) internal successors, (551), 114 states have internal predecessors, (551), 110 states have call successors, (110), 110 states have call predecessors, (110), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:15:05,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:15:05,580 INFO L93 Difference]: Finished difference Result 1176 states and 1204 transitions. [2024-10-14 20:15:05,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 277 states. [2024-10-14 20:15:05,581 INFO L78 Accepts]: Start accepts. Automaton has has 224 states, 221 states have (on average 2.493212669683258) internal successors, (551), 114 states have internal predecessors, (551), 110 states have call successors, (110), 110 states have call predecessors, (110), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 331 [2024-10-14 20:15:05,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:15:05,585 INFO L225 Difference]: With dead ends: 1176 [2024-10-14 20:15:05,585 INFO L226 Difference]: Without dead ends: 1175 [2024-10-14 20:15:05,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 936 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 386 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47437 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=21735, Invalid=128421, Unknown=0, NotChecked=0, Total=150156 [2024-10-14 20:15:05,594 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 2015 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:15:05,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2015 Valid, 450 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:15:05,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2024-10-14 20:15:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1155. [2024-10-14 20:15:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 962 states have (on average 1.0145530145530146) internal successors, (976), 962 states have internal predecessors, (976), 192 states have call successors, (192), 192 states have call predecessors, (192), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:15:05,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1168 transitions. [2024-10-14 20:15:05,762 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1168 transitions. Word has length 331 [2024-10-14 20:15:05,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:15:05,763 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1168 transitions. [2024-10-14 20:15:05,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 224 states, 221 states have (on average 2.493212669683258) internal successors, (551), 114 states have internal predecessors, (551), 110 states have call successors, (110), 110 states have call predecessors, (110), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:15:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1168 transitions. [2024-10-14 20:15:05,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-10-14 20:15:05,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:15:05,771 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 84, 83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:15:05,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-14 20:15:05,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:15:05,972 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-14 20:15:05,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:15:05,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1756098594, now seen corresponding path program 7 times [2024-10-14 20:15:05,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:15:05,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714576601] [2024-10-14 20:15:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:15:05,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:15:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat