./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 322f54fed62e27ecdc37b8dbd1ba5a40efbeb3c981a1a7430a57877b391f432f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 10:42:50,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 10:42:50,168 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 10:42:50,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 10:42:50,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 10:42:50,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 10:42:50,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 10:42:50,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 10:42:50,199 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 10:42:50,199 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 10:42:50,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 10:42:50,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 10:42:50,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 10:42:50,203 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 10:42:50,204 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 10:42:50,204 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 10:42:50,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 10:42:50,205 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 10:42:50,205 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 10:42:50,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 10:42:50,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 10:42:50,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 10:42:50,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 10:42:50,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 10:42:50,210 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 10:42:50,210 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 10:42:50,210 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 10:42:50,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 10:42:50,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 10:42:50,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 10:42:50,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 10:42:50,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 10:42:50,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 10:42:50,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 10:42:50,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:42:50,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 10:42:50,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 10:42:50,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 10:42:50,212 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 10:42:50,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 10:42:50,215 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 10:42:50,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 10:42:50,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 10:42:50,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 10:42:50,216 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 322f54fed62e27ecdc37b8dbd1ba5a40efbeb3c981a1a7430a57877b391f432f [2024-11-19 10:42:50,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 10:42:50,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 10:42:50,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 10:42:50,459 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 10:42:50,459 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 10:42:50,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound1.c [2024-11-19 10:42:51,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 10:42:52,002 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 10:42:52,002 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound1.c [2024-11-19 10:42:52,015 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0a13baa/94a8ed4e5bfc43ef8de3a59cee7018d0/FLAGd0978c642 [2024-11-19 10:42:52,030 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0a13baa/94a8ed4e5bfc43ef8de3a59cee7018d0 [2024-11-19 10:42:52,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 10:42:52,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 10:42:52,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 10:42:52,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 10:42:52,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 10:42:52,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b50836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52, skipping insertion in model container [2024-11-19 10:42:52,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,059 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 10:42:52,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:42:52,242 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 10:42:52,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:42:52,267 INFO L204 MainTranslator]: Completed translation [2024-11-19 10:42:52,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52 WrapperNode [2024-11-19 10:42:52,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 10:42:52,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 10:42:52,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 10:42:52,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 10:42:52,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,300 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-11-19 10:42:52,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 10:42:52,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 10:42:52,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 10:42:52,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 10:42:52,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,328 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 10:42:52,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,337 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,338 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 10:42:52,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 10:42:52,339 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 10:42:52,339 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 10:42:52,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (1/1) ... [2024-11-19 10:42:52,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:42:52,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:42:52,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 10:42:52,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 10:42:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 10:42:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 10:42:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 10:42:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 10:42:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 10:42:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 10:42:52,517 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 10:42:52,519 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 10:42:52,620 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-19 10:42:52,620 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 10:42:52,632 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 10:42:52,633 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 10:42:52,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:42:52 BoogieIcfgContainer [2024-11-19 10:42:52,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 10:42:52,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 10:42:52,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 10:42:52,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 10:42:52,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:42:52" (1/3) ... [2024-11-19 10:42:52,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ea99d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:42:52, skipping insertion in model container [2024-11-19 10:42:52,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:42:52" (2/3) ... [2024-11-19 10:42:52,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ea99d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:42:52, skipping insertion in model container [2024-11-19 10:42:52,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:42:52" (3/3) ... [2024-11-19 10:42:52,642 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound1.c [2024-11-19 10:42:52,656 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 10:42:52,656 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-19 10:42:52,711 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 10:42:52,717 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;@7ab52783, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 10:42:52,717 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 10:42:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:42:52,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 10:42:52,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:42:52,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 10:42:52,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:42:52,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:42:52,732 INFO L85 PathProgramCache]: Analyzing trace with hash 889508859, now seen corresponding path program 1 times [2024-11-19 10:42:52,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:42:52,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203151104] [2024-11-19 10:42:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:42:52,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:42:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:42:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:42:52,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:42:52,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203151104] [2024-11-19 10:42:52,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203151104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:42:52,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:42:52,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:42:52,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21740485] [2024-11-19 10:42:52,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:42:52,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 10:42:52,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:42:52,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 10:42:52,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 10:42:52,885 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:42:52,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:42:52,899 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2024-11-19 10:42:52,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 10:42:52,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-19 10:42:52,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:42:52,906 INFO L225 Difference]: With dead ends: 54 [2024-11-19 10:42:52,906 INFO L226 Difference]: Without dead ends: 21 [2024-11-19 10:42:52,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 10:42:52,911 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:42:52,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:42:52,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-19 10:42:52,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-19 10:42:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:42:52,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-11-19 10:42:52,939 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 6 [2024-11-19 10:42:52,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:42:52,939 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-11-19 10:42:52,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:42:52,940 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-11-19 10:42:52,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 10:42:52,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:42:52,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:42:52,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 10:42:52,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:42:52,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:42:52,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1806819342, now seen corresponding path program 1 times [2024-11-19 10:42:52,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:42:52,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062362190] [2024-11-19 10:42:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:42:52,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:42:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:42:52,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628010434] [2024-11-19 10:42:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:42:52,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:42:52,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:42:52,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:42:52,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 10:42:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:42:53,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 10:42:53,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:42:53,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:42:53,074 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:42:53,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:42:53,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062362190] [2024-11-19 10:42:53,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:42:53,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628010434] [2024-11-19 10:42:53,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628010434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:42:53,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:42:53,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:42:53,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688614465] [2024-11-19 10:42:53,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:42:53,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:42:53,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:42:53,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:42:53,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:42:53,080 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:42:53,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:42:53,136 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2024-11-19 10:42:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:42:53,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-19 10:42:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:42:53,137 INFO L225 Difference]: With dead ends: 34 [2024-11-19 10:42:53,137 INFO L226 Difference]: Without dead ends: 28 [2024-11-19 10:42:53,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:42:53,138 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:42:53,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:42:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-19 10:42:53,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-19 10:42:53,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:42:53,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-11-19 10:42:53,148 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 7 [2024-11-19 10:42:53,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:42:53,148 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-11-19 10:42:53,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:42:53,148 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-11-19 10:42:53,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 10:42:53,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:42:53,149 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:42:53,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 10:42:53,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:42:53,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:42:53,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:42:53,352 INFO L85 PathProgramCache]: Analyzing trace with hash 888630314, now seen corresponding path program 1 times [2024-11-19 10:42:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:42:53,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628118981] [2024-11-19 10:42:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:42:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:42:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:42:53,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372881087] [2024-11-19 10:42:53,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:42:53,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:42:53,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:42:53,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:42:53,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 10:42:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:42:53,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 10:42:53,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:42:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:42:53,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:42:53,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:42:53,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:42:53,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628118981] [2024-11-19 10:42:53,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:42:53,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372881087] [2024-11-19 10:42:53,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372881087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:42:53,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:42:53,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-19 10:42:53,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933329580] [2024-11-19 10:42:53,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:42:53,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:42:53,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:42:53,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:42:53,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:42:53,600 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:42:53,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:42:53,666 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2024-11-19 10:42:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 10:42:53,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2024-11-19 10:42:53,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:42:53,668 INFO L225 Difference]: With dead ends: 50 [2024-11-19 10:42:53,668 INFO L226 Difference]: Without dead ends: 40 [2024-11-19 10:42:53,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-19 10:42:53,669 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:42:53,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 41 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:42:53,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-19 10:42:53,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-19 10:42:53,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-19 10:42:53,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2024-11-19 10:42:53,677 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 18 [2024-11-19 10:42:53,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:42:53,679 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2024-11-19 10:42:53,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:42:53,679 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2024-11-19 10:42:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-19 10:42:53,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:42:53,680 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-19 10:42:53,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 10:42:53,884 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,SelfDestructingSolverStorable2 [2024-11-19 10:42:53,885 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:42:53,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:42:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash 860302606, now seen corresponding path program 2 times [2024-11-19 10:42:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:42:53,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921817925] [2024-11-19 10:42:53,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:42:53,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:42:53,922 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:42:53,922 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:42:53,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [187698076] [2024-11-19 10:42:53,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:42:53,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:42:53,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:42:53,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:42:53,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 10:42:53,993 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:42:53,994 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:42:53,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 10:42:53,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:42:54,093 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:42:54,094 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:42:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 10:42:54,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:42:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921817925] [2024-11-19 10:42:54,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:42:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187698076] [2024-11-19 10:42:54,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187698076] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:42:54,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:42:54,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-19 10:42:54,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128043200] [2024-11-19 10:42:54,286 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:42:54,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 10:42:54,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:42:54,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 10:42:54,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:42:54,290 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 10:42:54,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:42:54,491 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2024-11-19 10:42:54,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 10:42:54,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 51 [2024-11-19 10:42:54,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:42:54,493 INFO L225 Difference]: With dead ends: 83 [2024-11-19 10:42:54,493 INFO L226 Difference]: Without dead ends: 82 [2024-11-19 10:42:54,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-19 10:42:54,495 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 21 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:42:54,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 127 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:42:54,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-19 10:42:54,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-19 10:42:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:42:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2024-11-19 10:42:54,514 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 51 [2024-11-19 10:42:54,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:42:54,515 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2024-11-19 10:42:54,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 10:42:54,515 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2024-11-19 10:42:54,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 10:42:54,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:42:54,518 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-11-19 10:42:54,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 10:42:54,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:42:54,722 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:42:54,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:42:54,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1105989774, now seen corresponding path program 3 times [2024-11-19 10:42:54,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:42:54,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095313323] [2024-11-19 10:42:54,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:42:54,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:42:54,779 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-19 10:42:54,780 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:42:54,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277995200] [2024-11-19 10:42:54,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:42:54,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:42:54,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:42:54,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:42:54,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 10:42:54,857 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-19 10:42:54,858 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:42:54,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 10:42:54,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:42:55,020 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-19 10:42:55,021 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:42:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-19 10:42:55,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:42:55,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095313323] [2024-11-19 10:42:55,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:42:55,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277995200] [2024-11-19 10:42:55,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277995200] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:42:55,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:42:55,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-19 10:42:55,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058005628] [2024-11-19 10:42:55,570 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:42:55,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 10:42:55,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:42:55,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 10:42:55,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-11-19 10:42:55,574 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-19 10:42:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:42:56,245 INFO L93 Difference]: Finished difference Result 167 states and 199 transitions. [2024-11-19 10:42:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 10:42:56,246 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 117 [2024-11-19 10:42:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:42:56,248 INFO L225 Difference]: With dead ends: 167 [2024-11-19 10:42:56,249 INFO L226 Difference]: Without dead ends: 166 [2024-11-19 10:42:56,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 10:42:56,252 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 36 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:42:56,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 469 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:42:56,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-19 10:42:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-19 10:42:56,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 142 states have internal predecessors, (143), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-19 10:42:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2024-11-19 10:42:56,267 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 117 [2024-11-19 10:42:56,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:42:56,268 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2024-11-19 10:42:56,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-19 10:42:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2024-11-19 10:42:56,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-19 10:42:56,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:42:56,271 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2024-11-19 10:42:56,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 10:42:56,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:42:56,476 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:42:56,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:42:56,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1244055666, now seen corresponding path program 4 times [2024-11-19 10:42:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:42:56,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771948641] [2024-11-19 10:42:56,477 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:42:56,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:42:56,546 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:42:56,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:42:56,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525064838] [2024-11-19 10:42:56,550 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:42:56,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:42:56,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:42:56,552 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:42:56,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 10:42:56,645 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:42:56,645 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:42:56,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-19 10:42:56,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:42:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-19 10:42:57,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:42:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-19 10:42:58,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:42:58,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771948641] [2024-11-19 10:42:58,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:42:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525064838] [2024-11-19 10:42:58,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525064838] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:42:58,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:42:58,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-11-19 10:42:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739913197] [2024-11-19 10:42:58,221 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:42:58,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-19 10:42:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:42:58,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-19 10:42:58,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2024-11-19 10:42:58,224 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-19 10:43:00,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:43:01,000 INFO L93 Difference]: Finished difference Result 335 states and 403 transitions. [2024-11-19 10:43:01,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-19 10:43:01,000 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 249 [2024-11-19 10:43:01,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:43:01,005 INFO L225 Difference]: With dead ends: 335 [2024-11-19 10:43:01,005 INFO L226 Difference]: Without dead ends: 334 [2024-11-19 10:43:01,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2024-11-19 10:43:01,007 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 75 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:43:01,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1829 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 10:43:01,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-19 10:43:01,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2024-11-19 10:43:01,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 286 states have (on average 1.0034965034965035) internal successors, (287), 286 states have internal predecessors, (287), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 10:43:01,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 379 transitions. [2024-11-19 10:43:01,039 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 379 transitions. Word has length 249 [2024-11-19 10:43:01,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:43:01,040 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 379 transitions. [2024-11-19 10:43:01,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-19 10:43:01,040 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 379 transitions. [2024-11-19 10:43:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-19 10:43:01,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:43:01,047 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2024-11-19 10:43:01,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 10:43:01,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:43:01,251 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:43:01,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:43:01,252 INFO L85 PathProgramCache]: Analyzing trace with hash 543229326, now seen corresponding path program 5 times [2024-11-19 10:43:01,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:43:01,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750657219] [2024-11-19 10:43:01,252 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:43:01,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:43:01,472 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-19 10:43:01,472 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:43:01,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [861730641] [2024-11-19 10:43:01,481 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:43:01,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:43:01,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:43:01,486 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:43:01,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 10:43:01,691 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-19 10:43:01,692 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:43:01,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-19 10:43:01,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:43:02,745 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-19 10:43:02,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:43:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-19 10:43:06,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:43:06,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750657219] [2024-11-19 10:43:06,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:43:06,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861730641] [2024-11-19 10:43:06,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861730641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:43:06,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:43:06,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2024-11-19 10:43:06,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979073527] [2024-11-19 10:43:06,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:43:06,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-19 10:43:06,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:43:06,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-19 10:43:06,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2024-11-19 10:43:06,283 INFO L87 Difference]: Start difference. First operand 334 states and 379 transitions. Second operand has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-19 10:43:18,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:43:18,872 INFO L93 Difference]: Finished difference Result 671 states and 811 transitions. [2024-11-19 10:43:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-19 10:43:18,873 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 513 [2024-11-19 10:43:18,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:43:18,876 INFO L225 Difference]: With dead ends: 671 [2024-11-19 10:43:18,876 INFO L226 Difference]: Without dead ends: 670 [2024-11-19 10:43:18,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 930 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2024-11-19 10:43:18,880 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 147 mSDsluCounter, 6965 mSDsCounter, 0 mSdLazyCounter, 11375 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 7161 SdHoareTripleChecker+Invalid, 11424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:43:18,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 7161 Invalid, 11424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 11375 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 10:43:18,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-19 10:43:18,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2024-11-19 10:43:18,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 574 states have (on average 1.0017421602787457) internal successors, (575), 574 states have internal predecessors, (575), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-19 10:43:18,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 763 transitions. [2024-11-19 10:43:18,913 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 763 transitions. Word has length 513 [2024-11-19 10:43:18,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:43:18,914 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 763 transitions. [2024-11-19 10:43:18,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-19 10:43:18,915 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 763 transitions. [2024-11-19 10:43:18,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-11-19 10:43:18,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:43:18,939 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2024-11-19 10:43:18,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 10:43:19,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:43:19,144 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:43:19,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:43:19,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1361486222, now seen corresponding path program 6 times [2024-11-19 10:43:19,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:43:19,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265451345] [2024-11-19 10:43:19,145 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 10:43:19,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:43:19,640 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-19 10:43:19,641 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-19 10:43:19,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961045088] [2024-11-19 10:43:19,651 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 10:43:19,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:43:19,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:43:19,653 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:43:19,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 10:43:20,646 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-19 10:43:20,646 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:43:20,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-11-19 10:43:20,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:43:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 48363 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-19 10:43:24,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:43:24,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:43:24,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265451345] [2024-11-19 10:43:24,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:43:24,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961045088] [2024-11-19 10:43:24,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961045088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:43:24,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:43:24,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2024-11-19 10:43:24,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822341121] [2024-11-19 10:43:24,578 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:43:24,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-19 10:43:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:43:24,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-19 10:43:24,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4771, Invalid=5531, Unknown=0, NotChecked=0, Total=10302 [2024-11-19 10:43:24,584 INFO L87 Difference]: Start difference. First operand 670 states and 763 transitions. Second operand has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-19 10:43:30,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:43:30,107 INFO L93 Difference]: Finished difference Result 682 states and 777 transitions. [2024-11-19 10:43:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-19 10:43:30,108 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 1041 [2024-11-19 10:43:30,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:43:30,112 INFO L225 Difference]: With dead ends: 682 [2024-11-19 10:43:30,112 INFO L226 Difference]: Without dead ends: 681 [2024-11-19 10:43:30,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 958 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=14359, Invalid=23861, Unknown=0, NotChecked=0, Total=38220 [2024-11-19 10:43:30,117 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 473 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 10:43:30,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 247 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 10:43:30,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-19 10:43:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 677. [2024-11-19 10:43:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 580 states have (on average 1.0017241379310344) internal successors, (581), 580 states have internal predecessors, (581), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-19 10:43:30,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 771 transitions. [2024-11-19 10:43:30,145 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 771 transitions. Word has length 1041 [2024-11-19 10:43:30,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:43:30,147 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 771 transitions. [2024-11-19 10:43:30,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-19 10:43:30,147 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 771 transitions. [2024-11-19 10:43:30,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2024-11-19 10:43:30,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:43:30,153 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1, 1] [2024-11-19 10:43:30,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 10:43:30,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:43:30,358 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:43:30,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:43:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash -444417366, now seen corresponding path program 7 times [2024-11-19 10:43:30,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:43:30,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435945623] [2024-11-19 10:43:30,358 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 10:43:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:43:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:43:30,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427654658] [2024-11-19 10:43:30,479 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 10:43:30,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:43:30,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:43:30,481 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) [2024-11-19 10:43:30,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 10:43:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:43:30,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-11-19 10:43:30,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:43:34,156 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-19 10:43:34,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:43:47,261 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-19 10:43:47,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:43:47,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435945623] [2024-11-19 10:43:47,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:43:47,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427654658] [2024-11-19 10:43:47,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427654658] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:43:47,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:43:47,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2024-11-19 10:43:47,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511594397] [2024-11-19 10:43:47,262 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:43:47,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-11-19 10:43:47,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:43:47,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-11-19 10:43:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2024-11-19 10:43:47,269 INFO L87 Difference]: Start difference. First operand 677 states and 771 transitions. Second operand has 194 states, 193 states have (on average 5.979274611398964) internal successors, (1154), 194 states have internal predecessors, (1154), 190 states have call successors, (190), 1 states have call predecessors, (190), 1 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190)