./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 2fdde3d352865d24f00edfb02cdd5994421923a5ea92d15a0168523776b8ab34 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:48:44,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:48:44,689 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 20:48:44,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:48:44,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:48:44,726 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:48:44,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:48:44,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:48:44,728 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:48:44,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:48:44,732 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:48:44,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:48:44,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:48:44,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:48:44,733 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:48:44,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:48:44,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:48:44,734 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 20:48:44,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:48:44,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 20:48:44,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:48:44,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:48:44,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:48:44,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:48:44,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:48:44,738 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:48:44,738 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:48:44,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 20:48:44,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:48:44,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:48:44,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:48:44,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:48:44,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:48:44,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:48:44,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:48:44,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:48:44,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:48:44,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:48:44,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:48:44,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:48:44,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:48:44,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:48:44,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:48:44,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:48:44,743 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fdde3d352865d24f00edfb02cdd5994421923a5ea92d15a0168523776b8ab34 [2024-10-11 20:48:44,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:48:44,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:48:44,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:48:44,994 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:48:44,995 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:48:44,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c [2024-10-11 20:48:46,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:48:46,664 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:48:46,664 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound50.c [2024-10-11 20:48:46,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5b017c5e5/2adb043ce8d546a4bb1190d3588b1f7c/FLAGf2c186ae5 [2024-10-11 20:48:46,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/5b017c5e5/2adb043ce8d546a4bb1190d3588b1f7c [2024-10-11 20:48:46,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:48:46,699 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:48:46,700 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:48:46,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:48:46,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:48:46,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:46,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30fef1aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46, skipping insertion in model container [2024-10-11 20:48:46,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:46,732 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:48:46,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:48:46,941 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:48:46,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:48:46,972 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:48:46,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46 WrapperNode [2024-10-11 20:48:46,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:48:46,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:48:46,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:48:46,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:48:46,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:46,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,004 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-10-11 20:48:47,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:48:47,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:48:47,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:48:47,006 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:48:47,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,014 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,025 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 20:48:47,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,034 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:48:47,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:48:47,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:48:47,039 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:48:47,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (1/1) ... [2024-10-11 20:48:47,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:48:47,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:48:47,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:48:47,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:48:47,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 20:48:47,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 20:48:47,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:48:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:48:47,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 20:48:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 20:48:47,233 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:48:47,235 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:48:47,388 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-11 20:48:47,388 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:48:47,424 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:48:47,424 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 20:48:47,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:48:47 BoogieIcfgContainer [2024-10-11 20:48:47,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:48:47,426 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:48:47,427 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:48:47,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:48:47,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:48:46" (1/3) ... [2024-10-11 20:48:47,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa78bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:48:47, skipping insertion in model container [2024-10-11 20:48:47,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:48:46" (2/3) ... [2024-10-11 20:48:47,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa78bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:48:47, skipping insertion in model container [2024-10-11 20:48:47,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:48:47" (3/3) ... [2024-10-11 20:48:47,435 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound50.c [2024-10-11 20:48:47,452 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:48:47,452 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-11 20:48:47,517 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:48:47,524 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;@1b25107d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:48:47,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-11 20:48:47,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 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) [2024-10-11 20:48:47,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 20:48:47,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:48:47,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 20:48:47,536 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)] === [2024-10-11 20:48:47,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:48:47,544 INFO L85 PathProgramCache]: Analyzing trace with hash 86045589, now seen corresponding path program 1 times [2024-10-11 20:48:47,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:48:47,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667519495] [2024-10-11 20:48:47,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:48:47,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:48:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:48:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:48:47,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:48:47,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667519495] [2024-10-11 20:48:47,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667519495] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:48:47,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:48:47,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:48:47,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884739336] [2024-10-11 20:48:47,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:48:47,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 20:48:47,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:48:47,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 20:48:47,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 20:48:47,702 INFO L87 Difference]: Start difference. First operand has 25 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:48:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:48:47,735 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2024-10-11 20:48:47,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 20:48:47,739 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 20:48:47,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:48:47,746 INFO L225 Difference]: With dead ends: 46 [2024-10-11 20:48:47,747 INFO L226 Difference]: Without dead ends: 20 [2024-10-11 20:48:47,751 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 [2024-10-11 20:48:47,757 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:48:47,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:48:47,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-10-11 20:48:47,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-10-11 20:48:47,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:48:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2024-10-11 20:48:47,793 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 5 [2024-10-11 20:48:47,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:48:47,794 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2024-10-11 20:48:47,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:48:47,794 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2024-10-11 20:48:47,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 20:48:47,795 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:48:47,795 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 20:48:47,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:48:47,796 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)] === [2024-10-11 20:48:47,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:48:47,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1625705548, now seen corresponding path program 1 times [2024-10-11 20:48:47,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:48:47,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141980514] [2024-10-11 20:48:47,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:48:47,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:48:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:48:47,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549382529] [2024-10-11 20:48:47,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:48:47,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:47,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:48:47,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:48:47,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:48:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:48:47,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:48:47,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:48:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:48:47,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:48:47,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:48:47,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141980514] [2024-10-11 20:48:47,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:48:47,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549382529] [2024-10-11 20:48:47,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549382529] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:48:47,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:48:47,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:48:47,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040934944] [2024-10-11 20:48:47,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:48:47,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:48:47,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:48:47,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:48:47,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:48:47,950 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:48:48,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:48:48,002 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2024-10-11 20:48:48,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:48:48,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 20:48:48,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:48:48,004 INFO L225 Difference]: With dead ends: 33 [2024-10-11 20:48:48,004 INFO L226 Difference]: Without dead ends: 27 [2024-10-11 20:48:48,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:48:48,006 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:48:48,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 23 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:48:48,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-11 20:48:48,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-10-11 20:48:48,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 23 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 20:48:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-10-11 20:48:48,020 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 6 [2024-10-11 20:48:48,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:48:48,020 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-10-11 20:48:48,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:48:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-10-11 20:48:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 20:48:48,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:48:48,023 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:48:48,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 20:48:48,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:48,227 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)] === [2024-10-11 20:48:48,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:48:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash 330233028, now seen corresponding path program 1 times [2024-10-11 20:48:48,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:48:48,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197107300] [2024-10-11 20:48:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:48:48,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:48:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:48:48,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620156221] [2024-10-11 20:48:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:48:48,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:48,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:48:48,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:48:48,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:48:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:48:48,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:48:48,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:48:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:48:48,361 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:48:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:48:48,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:48:48,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197107300] [2024-10-11 20:48:48,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:48:48,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620156221] [2024-10-11 20:48:48,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620156221] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:48:48,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:48:48,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-10-11 20:48:48,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736497712] [2024-10-11 20:48:48,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:48:48,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:48:48,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:48:48,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:48:48,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:48:48,448 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2024-10-11 20:48:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:48:48,572 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2024-10-11 20:48:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:48:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) Word has length 17 [2024-10-11 20:48:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:48:48,574 INFO L225 Difference]: With dead ends: 49 [2024-10-11 20:48:48,575 INFO L226 Difference]: Without dead ends: 39 [2024-10-11 20:48:48,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:48:48,577 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:48:48,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 49 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:48:48,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-10-11 20:48:48,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-10-11 20:48:48,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 33 states have internal predecessors, (34), 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) [2024-10-11 20:48:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2024-10-11 20:48:48,588 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 17 [2024-10-11 20:48:48,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:48:48,589 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2024-10-11 20:48:48,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2024-10-11 20:48:48,589 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2024-10-11 20:48:48,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 20:48:48,591 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:48:48,591 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2024-10-11 20:48:48,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 20:48:48,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:48,796 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)] === [2024-10-11 20:48:48,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:48:48,797 INFO L85 PathProgramCache]: Analyzing trace with hash -323182668, now seen corresponding path program 2 times [2024-10-11 20:48:48,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:48:48,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852086880] [2024-10-11 20:48:48,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:48:48,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:48:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:48:48,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629150137] [2024-10-11 20:48:48,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:48:48,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:48,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:48:48,842 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:48:48,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:48:48,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:48:48,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:48:48,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 20:48:48,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:48:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 20:48:49,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:48:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 20:48:49,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:48:49,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852086880] [2024-10-11 20:48:49,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:48:49,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629150137] [2024-10-11 20:48:49,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629150137] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:48:49,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:48:49,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-11 20:48:49,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899572842] [2024-10-11 20:48:49,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:48:49,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 20:48:49,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:48:49,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 20:48:49,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:48:49,300 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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) [2024-10-11 20:48:49,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:48:49,564 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2024-10-11 20:48:49,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 20:48:49,565 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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 50 [2024-10-11 20:48:49,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:48:49,568 INFO L225 Difference]: With dead ends: 82 [2024-10-11 20:48:49,570 INFO L226 Difference]: Without dead ends: 81 [2024-10-11 20:48:49,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-10-11 20:48:49,572 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:48:49,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 138 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:48:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-11 20:48:49,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-10-11 20:48:49,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 69 states have (on average 1.0144927536231885) internal successors, (70), 69 states have internal predecessors, (70), 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) [2024-10-11 20:48:49,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2024-10-11 20:48:49,586 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 50 [2024-10-11 20:48:49,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:48:49,586 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2024-10-11 20:48:49,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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) [2024-10-11 20:48:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2024-10-11 20:48:49,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-11 20:48:49,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:48:49,590 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2024-10-11 20:48:49,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 20:48:49,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:49,795 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)] === [2024-10-11 20:48:49,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:48:49,796 INFO L85 PathProgramCache]: Analyzing trace with hash -223133260, now seen corresponding path program 3 times [2024-10-11 20:48:49,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:48:49,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131586247] [2024-10-11 20:48:49,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:48:49,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:48:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:48:49,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [767993064] [2024-10-11 20:48:49,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:48:49,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:49,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:48:49,890 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:48:49,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:48:49,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-11 20:48:49,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:48:49,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 20:48:49,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:48:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-11 20:48:50,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:48:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-11 20:48:50,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:48:50,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131586247] [2024-10-11 20:48:50,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:48:50,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767993064] [2024-10-11 20:48:50,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767993064] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:48:50,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:48:50,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-10-11 20:48:50,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105110628] [2024-10-11 20:48:50,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:48:50,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 20:48:50,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:48:50,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 20:48:50,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-10-11 20:48:50,691 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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) [2024-10-11 20:48:51,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:48:51,649 INFO L93 Difference]: Finished difference Result 166 states and 198 transitions. [2024-10-11 20:48:51,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 20:48:51,650 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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 116 [2024-10-11 20:48:51,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:48:51,653 INFO L225 Difference]: With dead ends: 166 [2024-10-11 20:48:51,653 INFO L226 Difference]: Without dead ends: 165 [2024-10-11 20:48:51,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 20:48:51,655 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 36 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:48:51,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 471 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:48:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-10-11 20:48:51,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-10-11 20:48:51,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 141 states have (on average 1.0070921985815602) internal successors, (142), 141 states have internal predecessors, (142), 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) [2024-10-11 20:48:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2024-10-11 20:48:51,692 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 116 [2024-10-11 20:48:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:48:51,692 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2024-10-11 20:48:51,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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) [2024-10-11 20:48:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2024-10-11 20:48:51,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-10-11 20:48:51,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:48:51,700 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2024-10-11 20:48:51,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 20:48:51,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:51,905 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)] === [2024-10-11 20:48:51,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:48:51,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1657862732, now seen corresponding path program 4 times [2024-10-11 20:48:51,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:48:51,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428706344] [2024-10-11 20:48:51,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:48:51,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:48:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:48:52,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630471497] [2024-10-11 20:48:52,007 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:48:52,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:52,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:48:52,010 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:48:52,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 20:48:52,124 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:48:52,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:48:52,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-10-11 20:48:52,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:48:52,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-11 20:48:52,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:48:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-11 20:48:54,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:48:54,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428706344] [2024-10-11 20:48:54,072 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:48:54,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630471497] [2024-10-11 20:48:54,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630471497] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:48:54,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:48:54,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-10-11 20:48:54,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391973315] [2024-10-11 20:48:54,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:48:54,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-11 20:48:54,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:48:54,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-11 20:48:54,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2024-10-11 20:48:54,078 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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) [2024-10-11 20:48:57,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:48:57,744 INFO L93 Difference]: Finished difference Result 334 states and 402 transitions. [2024-10-11 20:48:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-11 20:48:57,745 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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 248 [2024-10-11 20:48:57,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:48:57,750 INFO L225 Difference]: With dead ends: 334 [2024-10-11 20:48:57,752 INFO L226 Difference]: Without dead ends: 333 [2024-10-11 20:48:57,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2024-10-11 20:48:57,755 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 72 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 20:48:57,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1776 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 20:48:57,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-10-11 20:48:57,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-10-11 20:48:57,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 285 states have (on average 1.0035087719298246) internal successors, (286), 285 states have internal predecessors, (286), 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) [2024-10-11 20:48:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 378 transitions. [2024-10-11 20:48:57,800 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 378 transitions. Word has length 248 [2024-10-11 20:48:57,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:48:57,801 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 378 transitions. [2024-10-11 20:48:57,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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) [2024-10-11 20:48:57,801 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 378 transitions. [2024-10-11 20:48:57,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2024-10-11 20:48:57,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:48:57,815 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2024-10-11 20:48:57,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 20:48:58,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:58,020 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)] === [2024-10-11 20:48:58,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:48:58,021 INFO L85 PathProgramCache]: Analyzing trace with hash -538931788, now seen corresponding path program 5 times [2024-10-11 20:48:58,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:48:58,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881866951] [2024-10-11 20:48:58,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:48:58,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:48:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:48:58,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022985689] [2024-10-11 20:48:58,224 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:48:58,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:48:58,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:48:58,226 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:48:58,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 20:48:58,462 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-10-11 20:48:58,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:48:58,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-10-11 20:48:58,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:48:59,719 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-11 20:48:59,719 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:49:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-11 20:49:03,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:49:03,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881866951] [2024-10-11 20:49:03,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:49:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022985689] [2024-10-11 20:49:03,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022985689] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:49:03,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:49:03,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2024-10-11 20:49:03,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958904547] [2024-10-11 20:49:03,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:49:03,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-10-11 20:49:03,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:49:03,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-10-11 20:49:03,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2024-10-11 20:49:03,468 INFO L87 Difference]: Start difference. First operand 333 states and 378 transitions. Second operand has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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) [2024-10-11 20:49:17,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:49:17,383 INFO L93 Difference]: Finished difference Result 670 states and 810 transitions. [2024-10-11 20:49:17,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-10-11 20:49:17,385 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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 512 [2024-10-11 20:49:17,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:49:17,390 INFO L225 Difference]: With dead ends: 670 [2024-10-11 20:49:17,390 INFO L226 Difference]: Without dead ends: 669 [2024-10-11 20:49:17,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 928 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2024-10-11 20:49:17,396 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 144 mSDsluCounter, 6865 mSDsCounter, 0 mSdLazyCounter, 11374 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 7059 SdHoareTripleChecker+Invalid, 11422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 11374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-11 20:49:17,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 7059 Invalid, 11422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 11374 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-11 20:49:17,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-10-11 20:49:17,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2024-10-11 20:49:17,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 573 states have (on average 1.0017452006980803) internal successors, (574), 573 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) [2024-10-11 20:49:17,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 762 transitions. [2024-10-11 20:49:17,437 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 762 transitions. Word has length 512 [2024-10-11 20:49:17,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:49:17,438 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 762 transitions. [2024-10-11 20:49:17,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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) [2024-10-11 20:49:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 762 transitions. [2024-10-11 20:49:17,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2024-10-11 20:49:17,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:49:17,466 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2024-10-11 20:49:17,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 20:49:17,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-11 20:49:17,668 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)] === [2024-10-11 20:49:17,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:49:17,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2016124340, now seen corresponding path program 6 times [2024-10-11 20:49:17,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:49:17,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120268026] [2024-10-11 20:49:17,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:49:17,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:49:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:49:18,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1856281111] [2024-10-11 20:49:18,004 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:49:18,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:49:18,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:49:18,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:49:18,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 20:49:18,945 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-10-11 20:49:18,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:49:18,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-10-11 20:49:18,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:49:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 48363 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-10-11 20:49:22,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:49:23,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:49:23,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120268026] [2024-10-11 20:49:23,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:49:23,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856281111] [2024-10-11 20:49:23,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856281111] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:49:23,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:49:23,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2024-10-11 20:49:23,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984001586] [2024-10-11 20:49:23,379 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 20:49:23,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-10-11 20:49:23,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:49:23,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-10-11 20:49:23,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4771, Invalid=5531, Unknown=0, NotChecked=0, Total=10302 [2024-10-11 20:49:23,388 INFO L87 Difference]: Start difference. First operand 669 states and 762 transitions. Second operand has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 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) [2024-10-11 20:49:29,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:49:29,275 INFO L93 Difference]: Finished difference Result 681 states and 776 transitions. [2024-10-11 20:49:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-10-11 20:49:29,276 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 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 1040 [2024-10-11 20:49:29,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:49:29,282 INFO L225 Difference]: With dead ends: 681 [2024-10-11 20:49:29,282 INFO L226 Difference]: Without dead ends: 680 [2024-10-11 20:49:29,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1151 GetRequests, 957 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=14359, Invalid=23861, Unknown=0, NotChecked=0, Total=38220 [2024-10-11 20:49:29,289 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 473 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 20:49:29,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 238 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 20:49:29,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-10-11 20:49:29,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 676. [2024-10-11 20:49:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 579 states have (on average 1.001727115716753) internal successors, (580), 579 states have internal predecessors, (580), 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) [2024-10-11 20:49:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 770 transitions. [2024-10-11 20:49:29,333 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 770 transitions. Word has length 1040 [2024-10-11 20:49:29,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:49:29,335 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 770 transitions. [2024-10-11 20:49:29,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 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) [2024-10-11 20:49:29,336 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 770 transitions. [2024-10-11 20:49:29,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2024-10-11 20:49:29,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:49:29,350 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1] [2024-10-11 20:49:29,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 20:49:29,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:49:29,551 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)] === [2024-10-11 20:49:29,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:49:29,552 INFO L85 PathProgramCache]: Analyzing trace with hash -148452668, now seen corresponding path program 7 times [2024-10-11 20:49:29,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:49:29,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784684747] [2024-10-11 20:49:29,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:49:29,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:49:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 20:49:29,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79389411] [2024-10-11 20:49:29,798 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:49:29,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:49:29,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:49:29,800 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:49:29,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 20:49:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:49:30,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-10-11 20:49:30,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:49:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-10-11 20:49:33,792 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:49:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-10-11 20:49:47,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:49:47,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784684747] [2024-10-11 20:49:47,167 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 20:49:47,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79389411] [2024-10-11 20:49:47,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79389411] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:49:47,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:49:47,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2024-10-11 20:49:47,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580088373] [2024-10-11 20:49:47,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 20:49:47,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-10-11 20:49:47,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:49:47,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-10-11 20:49:47,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2024-10-11 20:49:47,179 INFO L87 Difference]: Start difference. First operand 676 states and 770 transitions. Second operand has 194 states, 193 states have (on average 5.974093264248705) internal successors, (1153), 194 states have internal predecessors, (1153), 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)