./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/divbin2_unwindbound50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound50.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b0ae54926d75c04421ee4ea5930c958fb8ba0ccacc4d56435da8ae7b298172d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:37:04,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:37:05,015 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:37:05,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:37:05,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:37:05,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:37:05,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:37:05,047 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:37:05,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:37:05,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:37:05,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:37:05,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:37:05,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:37:05,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:37:05,053 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:37:05,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:37:05,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:37:05,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:37:05,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:37:05,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:37:05,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:37:05,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:37:05,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:37:05,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:37:05,059 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:37:05,059 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:37:05,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:37:05,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:37:05,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:37:05,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:37:05,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:37:05,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:37:05,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:37:05,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:37:05,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:37:05,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:37:05,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:37:05,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:37:05,064 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:37:05,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:37:05,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:37:05,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:37:05,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:37:05,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:37:05,065 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b0ae54926d75c04421ee4ea5930c958fb8ba0ccacc4d56435da8ae7b298172d [2024-10-14 20:37:05,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:37:05,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:37:05,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:37:05,297 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:37:05,297 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:37:05,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound50.i [2024-10-14 20:37:06,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:37:06,776 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:37:06,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound50.i [2024-10-14 20:37:06,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c69030665/012463a56ef34b63a3c46357ce72d19b/FLAG3d6e78253 [2024-10-14 20:37:06,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c69030665/012463a56ef34b63a3c46357ce72d19b [2024-10-14 20:37:06,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:37:06,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:37:06,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:37:06,815 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:37:06,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:37:06,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:37:06" (1/1) ... [2024-10-14 20:37:06,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c164ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:06, skipping insertion in model container [2024-10-14 20:37:06,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:37:06" (1/1) ... [2024-10-14 20:37:06,848 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:37:07,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:37:07,034 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:37:07,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:37:07,070 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:37:07,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07 WrapperNode [2024-10-14 20:37:07,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:37:07,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:37:07,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:37:07,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:37:07,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,097 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2024-10-14 20:37:07,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:37:07,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:37:07,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:37:07,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:37:07,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,121 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]. [2024-10-14 20:37:07,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:37:07,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:37:07,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:37:07,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:37:07,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (1/1) ... [2024-10-14 20:37:07,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:37:07,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:07,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 20:37:07,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 20:37:07,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:37:07,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:37:07,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:37:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:37:07,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:37:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:37:07,261 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:37:07,263 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:37:07,365 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-10-14 20:37:07,365 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:37:07,382 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:37:07,383 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 20:37:07,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:37:07 BoogieIcfgContainer [2024-10-14 20:37:07,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:37:07,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:37:07,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:37:07,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:37:07,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:37:06" (1/3) ... [2024-10-14 20:37:07,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b54b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:37:07, skipping insertion in model container [2024-10-14 20:37:07,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:37:07" (2/3) ... [2024-10-14 20:37:07,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b54b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:37:07, skipping insertion in model container [2024-10-14 20:37:07,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:37:07" (3/3) ... [2024-10-14 20:37:07,390 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound50.i [2024-10-14 20:37:07,405 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:37:07,405 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 20:37:07,451 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:37:07,456 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;@49c3d84d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:37:07,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 20:37:07,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:07,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 20:37:07,471 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:07,472 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 20:37:07,472 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:07,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:07,477 INFO L85 PathProgramCache]: Analyzing trace with hash 106896, now seen corresponding path program 1 times [2024-10-14 20:37:07,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:07,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556887452] [2024-10-14 20:37:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:07,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:07,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:07,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556887452] [2024-10-14 20:37:07,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556887452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:07,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:37:07,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:37:07,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026559139] [2024-10-14 20:37:07,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:07,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:37:07,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:07,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:37:07,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:37:07,796 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-10-14 20:37:07,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:07,884 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions. [2024-10-14 20:37:07,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:37:07,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-10-14 20:37:07,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:07,893 INFO L225 Difference]: With dead ends: 49 [2024-10-14 20:37:07,893 INFO L226 Difference]: Without dead ends: 25 [2024-10-14 20:37:07,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:37:07,898 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:07,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 65 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-14 20:37:07,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-14 20:37:07,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.368421052631579) internal successors, (26), 22 states have internal predecessors, (26), 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) [2024-10-14 20:37:07,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-10-14 20:37:07,926 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 3 [2024-10-14 20:37:07,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:07,926 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-10-14 20:37:07,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-10-14 20:37:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-10-14 20:37:07,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:37:07,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:07,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:07,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:37:07,928 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:07,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:07,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1930673058, now seen corresponding path program 1 times [2024-10-14 20:37:07,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:07,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536843707] [2024-10-14 20:37:07,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:07,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:08,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:08,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536843707] [2024-10-14 20:37:08,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536843707] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:08,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:37:08,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:37:08,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861011328] [2024-10-14 20:37:08,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:08,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:37:08,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:08,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:37:08,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:37:08,034 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:08,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:08,091 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2024-10-14 20:37:08,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:37:08,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 20:37:08,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:08,092 INFO L225 Difference]: With dead ends: 44 [2024-10-14 20:37:08,092 INFO L226 Difference]: Without dead ends: 43 [2024-10-14 20:37:08,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:37:08,094 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:08,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 73 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:08,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-14 20:37:08,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2024-10-14 20:37:08,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 32 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:08,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2024-10-14 20:37:08,100 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 8 [2024-10-14 20:37:08,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:08,100 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2024-10-14 20:37:08,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:08,101 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2024-10-14 20:37:08,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:37:08,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:08,101 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:08,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:37:08,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:08,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:08,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1930671808, now seen corresponding path program 1 times [2024-10-14 20:37:08,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:08,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731885339] [2024-10-14 20:37:08,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:08,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:08,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:08,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731885339] [2024-10-14 20:37:08,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731885339] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:08,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379566856] [2024-10-14 20:37:08,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:08,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:08,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:08,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:08,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:37:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:37:08,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:08,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:08,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:37:08,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379566856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:08,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:37:08,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-10-14 20:37:08,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969277969] [2024-10-14 20:37:08,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:08,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:37:08,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:08,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:37:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:37:08,324 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:08,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:08,351 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-10-14 20:37:08,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:37:08,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 20:37:08,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:08,353 INFO L225 Difference]: With dead ends: 45 [2024-10-14 20:37:08,353 INFO L226 Difference]: Without dead ends: 44 [2024-10-14 20:37:08,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:37:08,354 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:08,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 57 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-14 20:37:08,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2024-10-14 20:37:08,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 31 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:08,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-10-14 20:37:08,360 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 8 [2024-10-14 20:37:08,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:08,360 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-10-14 20:37:08,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:08,361 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2024-10-14 20:37:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 20:37:08,361 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:08,361 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:08,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 20:37:08,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:08,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:08,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:08,567 INFO L85 PathProgramCache]: Analyzing trace with hash 278677408, now seen corresponding path program 1 times [2024-10-14 20:37:08,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:08,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628032781] [2024-10-14 20:37:08,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:08,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:08,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:08,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628032781] [2024-10-14 20:37:08,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628032781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:08,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:37:08,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:37:08,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414198075] [2024-10-14 20:37:08,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:08,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:37:08,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:08,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:37:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:37:08,633 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-10-14 20:37:08,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:08,694 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-10-14 20:37:08,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:37:08,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2024-10-14 20:37:08,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:08,695 INFO L225 Difference]: With dead ends: 45 [2024-10-14 20:37:08,695 INFO L226 Difference]: Without dead ends: 44 [2024-10-14 20:37:08,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:37:08,696 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:08,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 70 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:08,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-14 20:37:08,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2024-10-14 20:37:08,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.28125) internal successors, (41), 34 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2024-10-14 20:37:08,703 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 9 [2024-10-14 20:37:08,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:08,703 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2024-10-14 20:37:08,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2024-10-14 20:37:08,703 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2024-10-14 20:37:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 20:37:08,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:08,703 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-14 20:37:08,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:37:08,704 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:08,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:08,704 INFO L85 PathProgramCache]: Analyzing trace with hash 278716137, now seen corresponding path program 1 times [2024-10-14 20:37:08,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:08,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742538538] [2024-10-14 20:37:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:08,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:08,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:08,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742538538] [2024-10-14 20:37:08,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742538538] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:08,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216143172] [2024-10-14 20:37:08,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:08,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:08,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:08,790 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:08,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:37:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:08,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:37:08,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:08,866 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:37:08,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216143172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:08,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:37:08,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 9 [2024-10-14 20:37:08,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954541621] [2024-10-14 20:37:08,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:08,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:37:08,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:08,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:37:08,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:37:08,868 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-10-14 20:37:08,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:08,917 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-10-14 20:37:08,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:37:08,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2024-10-14 20:37:08,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:08,922 INFO L225 Difference]: With dead ends: 44 [2024-10-14 20:37:08,922 INFO L226 Difference]: Without dead ends: 43 [2024-10-14 20:37:08,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:37:08,923 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:08,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 62 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:08,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-14 20:37:08,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2024-10-14 20:37:08,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.25) internal successors, (40), 33 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-10-14 20:37:08,932 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 9 [2024-10-14 20:37:08,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:08,932 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-10-14 20:37:08,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-10-14 20:37:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-10-14 20:37:08,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 20:37:08,933 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:08,933 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:08,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 20:37:09,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:09,135 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:09,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:09,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1060698341, now seen corresponding path program 1 times [2024-10-14 20:37:09,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:09,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419988907] [2024-10-14 20:37:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:09,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:09,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:09,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419988907] [2024-10-14 20:37:09,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419988907] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:09,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191017643] [2024-10-14 20:37:09,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:09,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:09,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:09,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:09,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:37:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:09,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:37:09,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:09,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:09,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:09,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:09,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191017643] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:09,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:09,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-14 20:37:09,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106319850] [2024-10-14 20:37:09,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:09,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:37:09,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:09,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:37:09,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:37:09,300 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:09,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:09,386 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2024-10-14 20:37:09,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 20:37:09,386 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-14 20:37:09,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:09,387 INFO L225 Difference]: With dead ends: 75 [2024-10-14 20:37:09,387 INFO L226 Difference]: Without dead ends: 62 [2024-10-14 20:37:09,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:37:09,388 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 43 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:09,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:09,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-14 20:37:09,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2024-10-14 20:37:09,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 47 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:09,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2024-10-14 20:37:09,394 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 12 [2024-10-14 20:37:09,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:09,394 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2024-10-14 20:37:09,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2024-10-14 20:37:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:37:09,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:09,395 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-14 20:37:09,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 20:37:09,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:09,599 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:09,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:09,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1478038866, now seen corresponding path program 1 times [2024-10-14 20:37:09,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:09,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756746676] [2024-10-14 20:37:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:09,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:09,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:09,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:09,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756746676] [2024-10-14 20:37:09,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756746676] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:09,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94708494] [2024-10-14 20:37:09,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:09,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:09,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:09,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:09,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:37:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:09,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:37:09,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:09,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:37:09,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94708494] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:09,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:37:09,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 13 [2024-10-14 20:37:09,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411692447] [2024-10-14 20:37:09,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:09,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:37:09,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:09,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:37:09,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:37:09,798 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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) [2024-10-14 20:37:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:09,839 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2024-10-14 20:37:09,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:37:09,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2024-10-14 20:37:09,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:09,840 INFO L225 Difference]: With dead ends: 52 [2024-10-14 20:37:09,840 INFO L226 Difference]: Without dead ends: 51 [2024-10-14 20:37:09,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:37:09,841 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:09,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 30 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:09,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-14 20:37:09,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 40. [2024-10-14 20:37:09,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 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) [2024-10-14 20:37:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2024-10-14 20:37:09,850 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 13 [2024-10-14 20:37:09,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:09,850 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2024-10-14 20:37:09,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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) [2024-10-14 20:37:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2024-10-14 20:37:09,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:37:09,850 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:09,850 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:09,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:37:10,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:10,051 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:10,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:10,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1425435472, now seen corresponding path program 1 times [2024-10-14 20:37:10,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:10,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856859955] [2024-10-14 20:37:10,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:10,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:10,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856859955] [2024-10-14 20:37:10,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856859955] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426220416] [2024-10-14 20:37:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:10,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:10,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:10,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:10,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:37:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:10,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:37:10,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:10,256 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:10,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:10,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426220416] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:10,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:10,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 18 [2024-10-14 20:37:10,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896014817] [2024-10-14 20:37:10,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:10,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 20:37:10,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:10,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 20:37:10,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:37:10,346 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 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) [2024-10-14 20:37:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:10,534 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2024-10-14 20:37:10,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 20:37:10,534 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 20:37:10,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:10,535 INFO L225 Difference]: With dead ends: 69 [2024-10-14 20:37:10,537 INFO L226 Difference]: Without dead ends: 68 [2024-10-14 20:37:10,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2024-10-14 20:37:10,538 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 86 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:10,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 98 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:37:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-14 20:37:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2024-10-14 20:37:10,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:37:10,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2024-10-14 20:37:10,549 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 14 [2024-10-14 20:37:10,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:10,549 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2024-10-14 20:37:10,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 19 states have internal predecessors, (39), 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) [2024-10-14 20:37:10,549 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2024-10-14 20:37:10,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 20:37:10,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:10,550 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:10,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:37:10,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:10,751 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:10,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:10,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1427000159, now seen corresponding path program 1 times [2024-10-14 20:37:10,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:10,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634258282] [2024-10-14 20:37:10,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:10,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:11,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 20:37:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:11,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:37:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:11,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 20:37:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:11,080 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:37:11,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:11,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634258282] [2024-10-14 20:37:11,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634258282] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:11,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278924623] [2024-10-14 20:37:11,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:11,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:11,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:11,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:11,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:37:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:11,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:37:11,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:11,299 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:11,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:37:11,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278924623] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:11,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:11,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-10-14 20:37:11,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047909296] [2024-10-14 20:37:11,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:11,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-14 20:37:11,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:11,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-14 20:37:11,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2024-10-14 20:37:11,529 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand has 31 states, 30 states have (on average 3.0) internal successors, (90), 31 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:37:12,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:12,071 INFO L93 Difference]: Finished difference Result 215 states and 244 transitions. [2024-10-14 20:37:12,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-14 20:37:12,072 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.0) internal successors, (90), 31 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 42 [2024-10-14 20:37:12,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:12,073 INFO L225 Difference]: With dead ends: 215 [2024-10-14 20:37:12,073 INFO L226 Difference]: Without dead ends: 214 [2024-10-14 20:37:12,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2024-10-14 20:37:12,078 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 147 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:12,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 200 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:37:12,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-14 20:37:12,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 161. [2024-10-14 20:37:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 136 states have (on average 1.1323529411764706) internal successors, (154), 136 states have internal predecessors, (154), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:37:12,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 178 transitions. [2024-10-14 20:37:12,116 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 178 transitions. Word has length 42 [2024-10-14 20:37:12,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:12,116 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 178 transitions. [2024-10-14 20:37:12,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.0) internal successors, (90), 31 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:37:12,117 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 178 transitions. [2024-10-14 20:37:12,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-14 20:37:12,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:12,118 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-14 20:37:12,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 20:37:12,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:12,319 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:12,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:12,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1065299529, now seen corresponding path program 1 times [2024-10-14 20:37:12,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:12,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861247804] [2024-10-14 20:37:12,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:12,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:12,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 20:37:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:12,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 20:37:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:12,492 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:37:12,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:12,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861247804] [2024-10-14 20:37:12,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861247804] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:12,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047281846] [2024-10-14 20:37:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:12,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:12,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:12,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:12,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:37:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:12,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:37:12,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:37:12,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:37:12,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047281846] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:12,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:12,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 25 [2024-10-14 20:37:12,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885543073] [2024-10-14 20:37:12,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:12,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-14 20:37:12,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:12,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-14 20:37:12,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2024-10-14 20:37:12,716 INFO L87 Difference]: Start difference. First operand 161 states and 178 transitions. Second operand has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:37:12,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:12,967 INFO L93 Difference]: Finished difference Result 241 states and 272 transitions. [2024-10-14 20:37:12,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 20:37:12,968 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2024-10-14 20:37:12,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:12,970 INFO L225 Difference]: With dead ends: 241 [2024-10-14 20:37:12,970 INFO L226 Difference]: Without dead ends: 215 [2024-10-14 20:37:12,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=576, Invalid=1230, Unknown=0, NotChecked=0, Total=1806 [2024-10-14 20:37:12,971 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 92 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:12,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 149 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:37:12,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-10-14 20:37:12,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 191. [2024-10-14 20:37:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 166 states have (on average 1.144578313253012) internal successors, (190), 166 states have internal predecessors, (190), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:37:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 214 transitions. [2024-10-14 20:37:12,991 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 214 transitions. Word has length 50 [2024-10-14 20:37:12,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:12,991 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 214 transitions. [2024-10-14 20:37:12,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.72) internal successors, (68), 25 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:37:12,992 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 214 transitions. [2024-10-14 20:37:12,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 20:37:12,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:12,995 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-14 20:37:13,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:37:13,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:13,196 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:13,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:13,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1544387511, now seen corresponding path program 2 times [2024-10-14 20:37:13,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:13,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978626527] [2024-10-14 20:37:13,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:13,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:13,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:37:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:13,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 20:37:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:37:13,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:13,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978626527] [2024-10-14 20:37:13,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978626527] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:13,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705635664] [2024-10-14 20:37:13,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:37:13,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:13,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:13,612 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:13,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:37:13,657 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:37:13,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:37:13,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 20:37:13,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:13,732 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:37:13,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:14,165 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:37:14,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705635664] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:14,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:14,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 24] total 49 [2024-10-14 20:37:14,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107045401] [2024-10-14 20:37:14,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:14,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-10-14 20:37:14,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:14,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-10-14 20:37:14,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=645, Invalid=1707, Unknown=0, NotChecked=0, Total=2352 [2024-10-14 20:37:14,168 INFO L87 Difference]: Start difference. First operand 191 states and 214 transitions. Second operand has 49 states, 49 states have (on average 2.6122448979591835) internal successors, (128), 49 states have internal predecessors, (128), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:37:15,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:15,032 INFO L93 Difference]: Finished difference Result 337 states and 386 transitions. [2024-10-14 20:37:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-10-14 20:37:15,032 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.6122448979591835) internal successors, (128), 49 states have internal predecessors, (128), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2024-10-14 20:37:15,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:15,034 INFO L225 Difference]: With dead ends: 337 [2024-10-14 20:37:15,034 INFO L226 Difference]: Without dead ends: 311 [2024-10-14 20:37:15,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1947 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=2580, Invalid=5610, Unknown=0, NotChecked=0, Total=8190 [2024-10-14 20:37:15,036 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 405 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:15,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 150 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:37:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-10-14 20:37:15,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 251. [2024-10-14 20:37:15,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 226 states have (on average 1.1592920353982301) internal successors, (262), 226 states have internal predecessors, (262), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:37:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 286 transitions. [2024-10-14 20:37:15,047 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 286 transitions. Word has length 80 [2024-10-14 20:37:15,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:15,047 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 286 transitions. [2024-10-14 20:37:15,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.6122448979591835) internal successors, (128), 49 states have internal predecessors, (128), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:37:15,047 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 286 transitions. [2024-10-14 20:37:15,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 20:37:15,049 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:15,049 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:37:15,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 20:37:15,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 20:37:15,251 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:15,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash 593678544, now seen corresponding path program 1 times [2024-10-14 20:37:15,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:15,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971731654] [2024-10-14 20:37:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:37:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 20:37:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 20:37:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 20:37:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:37:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 20:37:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 20:37:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 20:37:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 20:37:15,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:15,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971731654] [2024-10-14 20:37:15,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971731654] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:15,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903449956] [2024-10-14 20:37:15,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:15,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:15,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:15,735 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:15,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:37:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:15,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 20:37:15,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:16,266 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:16,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 222 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 20:37:16,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903449956] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:16,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:16,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 66 [2024-10-14 20:37:16,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851761281] [2024-10-14 20:37:16,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:16,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-10-14 20:37:16,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:16,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-10-14 20:37:16,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1012, Invalid=3410, Unknown=0, NotChecked=0, Total=4422 [2024-10-14 20:37:16,900 INFO L87 Difference]: Start difference. First operand 251 states and 286 transitions. Second operand has 67 states, 66 states have (on average 3.1818181818181817) internal successors, (210), 67 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 20:37:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:18,363 INFO L93 Difference]: Finished difference Result 635 states and 722 transitions. [2024-10-14 20:37:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-10-14 20:37:18,363 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 3.1818181818181817) internal successors, (210), 67 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 102 [2024-10-14 20:37:18,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:18,366 INFO L225 Difference]: With dead ends: 635 [2024-10-14 20:37:18,366 INFO L226 Difference]: Without dead ends: 634 [2024-10-14 20:37:18,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3740 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4499, Invalid=11757, Unknown=0, NotChecked=0, Total=16256 [2024-10-14 20:37:18,369 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 459 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:18,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 273 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:37:18,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-10-14 20:37:18,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 416. [2024-10-14 20:37:18,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 361 states have (on average 1.1412742382271468) internal successors, (412), 361 states have internal predecessors, (412), 27 states have call successors, (27), 27 states have call predecessors, (27), 27 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 20:37:18,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 466 transitions. [2024-10-14 20:37:18,388 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 466 transitions. Word has length 102 [2024-10-14 20:37:18,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:18,389 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 466 transitions. [2024-10-14 20:37:18,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 3.1818181818181817) internal successors, (210), 67 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 20:37:18,389 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 466 transitions. [2024-10-14 20:37:18,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-10-14 20:37:18,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:18,394 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 2, 1, 1, 1] [2024-10-14 20:37:18,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 20:37:18,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:18,599 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:18,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:18,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1355164160, now seen corresponding path program 2 times [2024-10-14 20:37:18,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:18,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548402802] [2024-10-14 20:37:18,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:18,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 20:37:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 20:37:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 20:37:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 20:37:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 20:37:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 20:37:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 20:37:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 20:37:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 20:37:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 20:37:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 20:37:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 20:37:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 20:37:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-14 20:37:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-14 20:37:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 20:37:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-14 20:37:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-14 20:37:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 1140 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 20:37:19,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:19,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548402802] [2024-10-14 20:37:19,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548402802] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:19,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834033142] [2024-10-14 20:37:19,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:37:19,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:19,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:19,980 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:19,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:37:20,062 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:37:20,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:37:20,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-10-14 20:37:20,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:20,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 1752 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:37:20,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:37:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 1140 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-14 20:37:21,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834033142] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:37:21,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:37:21,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 44, 45] total 92 [2024-10-14 20:37:21,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485701094] [2024-10-14 20:37:21,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:37:21,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2024-10-14 20:37:21,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:21,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2024-10-14 20:37:21,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1947, Invalid=6609, Unknown=0, NotChecked=0, Total=8556 [2024-10-14 20:37:21,748 INFO L87 Difference]: Start difference. First operand 416 states and 466 transitions. Second operand has 93 states, 92 states have (on average 3.4347826086956523) internal successors, (316), 93 states have internal predecessors, (316), 36 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 36 states have call predecessors, (54), 36 states have call successors, (54) [2024-10-14 20:37:24,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:24,368 INFO L93 Difference]: Finished difference Result 1216 states and 1356 transitions. [2024-10-14 20:37:24,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2024-10-14 20:37:24,369 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 92 states have (on average 3.4347826086956523) internal successors, (316), 93 states have internal predecessors, (316), 36 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 36 states have call predecessors, (54), 36 states have call successors, (54) Word has length 217 [2024-10-14 20:37:24,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:24,380 INFO L225 Difference]: With dead ends: 1216 [2024-10-14 20:37:24,380 INFO L226 Difference]: Without dead ends: 1215 [2024-10-14 20:37:24,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9135 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=9067, Invalid=24605, Unknown=0, NotChecked=0, Total=33672 [2024-10-14 20:37:24,389 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 867 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:24,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 388 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:37:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2024-10-14 20:37:24,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 537. [2024-10-14 20:37:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 460 states have (on average 1.1347826086956523) internal successors, (522), 460 states have internal predecessors, (522), 38 states have call successors, (38), 38 states have call predecessors, (38), 38 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 20:37:24,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 598 transitions. [2024-10-14 20:37:24,456 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 598 transitions. Word has length 217 [2024-10-14 20:37:24,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:24,456 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 598 transitions. [2024-10-14 20:37:24,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 92 states have (on average 3.4347826086956523) internal successors, (316), 93 states have internal predecessors, (316), 36 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 36 states have call predecessors, (54), 36 states have call successors, (54) [2024-10-14 20:37:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 598 transitions. [2024-10-14 20:37:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-10-14 20:37:24,463 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:37:24,463 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 4, 4, 4, 4, 3, 1, 1, 1] [2024-10-14 20:37:24,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 20:37:24,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 20:37:24,664 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:37:24,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:37:24,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1061934607, now seen corresponding path program 3 times [2024-10-14 20:37:24,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:37:24,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895043968] [2024-10-14 20:37:24,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:37:24,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:37:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 20:37:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 20:37:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 20:37:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 20:37:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 20:37:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 20:37:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 20:37:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 20:37:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 20:37:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 20:37:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-14 20:37:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 20:37:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 20:37:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 20:37:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 20:37:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-14 20:37:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-14 20:37:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-14 20:37:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-14 20:37:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:37:26,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1968 backedges. 0 proven. 1284 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-14 20:37:26,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:37:26,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895043968] [2024-10-14 20:37:26,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895043968] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:37:26,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636070690] [2024-10-14 20:37:26,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:37:26,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:37:26,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:37:26,611 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:37:26,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:37:26,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-14 20:37:26,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:37:26,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:37:26,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:37:26,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1968 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 1767 trivial. 0 not checked. [2024-10-14 20:37:26,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:37:26,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636070690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:37:26,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:37:26,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [50] total 53 [2024-10-14 20:37:26,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9058133] [2024-10-14 20:37:26,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:37:26,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:37:26,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:37:26,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:37:26,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2024-10-14 20:37:26,823 INFO L87 Difference]: Start difference. First operand 537 states and 598 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:26,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:37:26,904 INFO L93 Difference]: Finished difference Result 545 states and 606 transitions. [2024-10-14 20:37:26,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:37:26,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 233 [2024-10-14 20:37:26,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:37:26,905 INFO L225 Difference]: With dead ends: 545 [2024-10-14 20:37:26,905 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 20:37:26,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=659, Invalid=2421, Unknown=0, NotChecked=0, Total=3080 [2024-10-14 20:37:26,909 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:37:26,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 45 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:37:26,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 20:37:26,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 20:37:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:37:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 20:37:26,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2024-10-14 20:37:26,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:37:26,910 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 20:37:26,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:37:26,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 20:37:26,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 20:37:26,912 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-14 20:37:26,913 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-14 20:37:26,913 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-14 20:37:26,913 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-14 20:37:26,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 20:37:27,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 20:37:27,117 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:37:27,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 20:37:33,805 WARN L286 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 400 DAG size of output: 118 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-10-14 20:37:34,813 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 20:37:34,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 08:37:34 BoogieIcfgContainer [2024-10-14 20:37:34,833 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 20:37:34,834 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 20:37:34,834 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 20:37:34,834 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 20:37:34,834 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:37:07" (3/4) ... [2024-10-14 20:37:34,837 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 20:37:34,840 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-14 20:37:34,843 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-14 20:37:34,843 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 20:37:34,843 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 20:37:34,844 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 20:37:34,938 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 20:37:34,938 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 20:37:34,938 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 20:37:34,939 INFO L158 Benchmark]: Toolchain (without parser) took 28126.95ms. Allocated memory was 159.4MB in the beginning and 897.6MB in the end (delta: 738.2MB). Free memory was 102.8MB in the beginning and 753.7MB in the end (delta: -651.0MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2024-10-14 20:37:34,939 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:37:34,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.98ms. Allocated memory is still 159.4MB. Free memory was 102.4MB in the beginning and 91.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 20:37:34,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.67ms. Allocated memory is still 159.4MB. Free memory was 91.0MB in the beginning and 89.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 20:37:34,943 INFO L158 Benchmark]: Boogie Preprocessor took 34.76ms. Allocated memory is still 159.4MB. Free memory was 89.3MB in the beginning and 87.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:37:34,943 INFO L158 Benchmark]: RCFGBuilder took 248.82ms. Allocated memory is still 159.4MB. Free memory was 87.7MB in the beginning and 75.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 20:37:34,944 INFO L158 Benchmark]: TraceAbstraction took 27447.71ms. Allocated memory was 159.4MB in the beginning and 897.6MB in the end (delta: 738.2MB). Free memory was 74.7MB in the beginning and 759.0MB in the end (delta: -684.3MB). Peak memory consumption was 489.4MB. Max. memory is 16.1GB. [2024-10-14 20:37:34,944 INFO L158 Benchmark]: Witness Printer took 104.81ms. Allocated memory is still 897.6MB. Free memory was 759.0MB in the beginning and 753.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 20:37:34,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.98ms. Allocated memory is still 159.4MB. Free memory was 102.4MB in the beginning and 91.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.67ms. Allocated memory is still 159.4MB. Free memory was 91.0MB in the beginning and 89.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.76ms. Allocated memory is still 159.4MB. Free memory was 89.3MB in the beginning and 87.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 248.82ms. Allocated memory is still 159.4MB. Free memory was 87.7MB in the beginning and 75.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 27447.71ms. Allocated memory was 159.4MB in the beginning and 897.6MB in the end (delta: 738.2MB). Free memory was 74.7MB in the beginning and 759.0MB in the end (delta: -684.3MB). Peak memory consumption was 489.4MB. Max. memory is 16.1GB. * Witness Printer took 104.81ms. Allocated memory is still 897.6MB. Free memory was 759.0MB in the beginning and 753.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 14, TraceHistogramMax: 20, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2181 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2181 mSDsluCounter, 1735 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1534 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1754 IncrementalHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 201 mSDtfsCounter, 1754 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1860 GetRequests, 1216 SyntacticMatches, 0 SemanticMatches, 644 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16917 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=537occurred in iteration=13, InterpolantAutomatonStates: 455, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 1084 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 1580 NumberOfCodeBlocks, 1372 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2065 ConstructedInterpolants, 0 QuantifiedInterpolants, 4879 SizeOfPredicates, 113 NumberOfNonLiveVariables, 1385 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 32 InterpolantComputations, 7 PerfectInterpolantSequences, 4249/11411 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((0 <= ((long long) counter + 2147483647)) && (counter <= 50)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((0 <= ((long long) counter + 2147483647)) && (counter <= 2147483629)) RESULT: Ultimate proved your program to be correct! [2024-10-14 20:37:34,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE