./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/prod4br-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:46:54,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:46:54,342 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 13:46:54,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:46:54,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:46:54,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:46:54,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:46:54,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:46:54,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:46:54,375 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:46:54,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:46:54,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:46:54,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:46:54,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:46:54,379 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:46:54,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:46:54,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:46:54,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 13:46:54,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:46:54,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 13:46:54,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:46:54,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:46:54,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:46:54,381 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:46:54,381 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:46:54,381 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:46:54,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:46:54,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 13:46:54,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:46:54,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:46:54,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:46:54,383 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:46:54,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:46:54,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:46:54,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:46:54,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:46:54,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:46:54,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:46:54,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:46:54,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:46:54,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:46:54,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:46:54,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:46:54,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:46:54,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 [2024-10-13 13:46:54,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:46:54,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:46:54,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:46:54,624 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:46:54,624 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:46:54,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c [2024-10-13 13:46:55,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:46:56,059 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:46:56,059 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c [2024-10-13 13:46:56,066 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d10abdbf/c9f0261e23d1490488cb5dac6608548e/FLAGc392d5148 [2024-10-13 13:46:56,079 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d10abdbf/c9f0261e23d1490488cb5dac6608548e [2024-10-13 13:46:56,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:46:56,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:46:56,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:46:56,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:46:56,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:46:56,100 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,101 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cddfdbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56, skipping insertion in model container [2024-10-13 13:46:56,101 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:46:56,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:46:56,317 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:46:56,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:46:56,376 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:46:56,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56 WrapperNode [2024-10-13 13:46:56,378 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:46:56,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:46:56,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:46:56,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:46:56,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,411 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2024-10-13 13:46:56,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:46:56,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:46:56,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:46:56,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:46:56,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,434 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 13:46:56,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,441 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:46:56,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:46:56,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:46:56,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:46:56,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (1/1) ... [2024-10-13 13:46:56,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:46:56,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:46:56,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 13:46:56,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 13:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 13:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 13:46:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 13:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 13:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:46:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:46:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 13:46:56,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 13:46:56,561 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:46:56,564 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:46:56,956 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-10-13 13:46:56,956 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:46:56,975 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:46:56,975 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 13:46:56,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:46:56 BoogieIcfgContainer [2024-10-13 13:46:56,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:46:56,977 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:46:56,977 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:46:56,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:46:56,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:46:56" (1/3) ... [2024-10-13 13:46:56,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2590bd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:46:56, skipping insertion in model container [2024-10-13 13:46:56,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:46:56" (2/3) ... [2024-10-13 13:46:56,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2590bd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:46:56, skipping insertion in model container [2024-10-13 13:46:56,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:46:56" (3/3) ... [2024-10-13 13:46:56,982 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound50.c [2024-10-13 13:46:56,993 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:46:56,993 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-13 13:46:57,038 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:46:57,043 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;@2cfac10d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:46:57,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-10-13 13:46:57,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 57 states have (on average 1.8771929824561404) internal successors, (107), 99 states have internal predecessors, (107), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-13 13:46:57,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-13 13:46:57,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:46:57,053 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:46:57,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:46:57,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:46:57,057 INFO L85 PathProgramCache]: Analyzing trace with hash -639812028, now seen corresponding path program 1 times [2024-10-13 13:46:57,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:46:57,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596222295] [2024-10-13 13:46:57,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:46:57,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:46:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:46:57,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:46:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:46:57,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:46:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:46:57,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:46:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:46:57,190 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:46:57,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:46:57,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596222295] [2024-10-13 13:46:57,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596222295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:46:57,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:46:57,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:46:57,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560399789] [2024-10-13 13:46:57,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:46:57,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 13:46:57,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:46:57,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 13:46:57,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:46:57,213 INFO L87 Difference]: Start difference. First operand has 108 states, 57 states have (on average 1.8771929824561404) internal successors, (107), 99 states have internal predecessors, (107), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:46:57,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:46:57,234 INFO L93 Difference]: Finished difference Result 214 states and 241 transitions. [2024-10-13 13:46:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 13:46:57,236 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-10-13 13:46:57,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:46:57,241 INFO L225 Difference]: With dead ends: 214 [2024-10-13 13:46:57,241 INFO L226 Difference]: Without dead ends: 105 [2024-10-13 13:46:57,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:46:57,246 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:46:57,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:46:57,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-13 13:46:57,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-10-13 13:46:57,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 56 states have (on average 1.8035714285714286) internal successors, (101), 97 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-13 13:46:57,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2024-10-13 13:46:57,283 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 20 [2024-10-13 13:46:57,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:46:57,284 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2024-10-13 13:46:57,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:46:57,284 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2024-10-13 13:46:57,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-13 13:46:57,285 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:46:57,285 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:46:57,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 13:46:57,286 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:46:57,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:46:57,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1469837050, now seen corresponding path program 1 times [2024-10-13 13:46:57,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:46:57,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122336851] [2024-10-13 13:46:57,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:46:57,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:46:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:46:57,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [547044874] [2024-10-13 13:46:57,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:46:57,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:46:57,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:46:57,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:46:57,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 13:46:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:46:57,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-13 13:46:57,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:46:57,543 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:46:57,544 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:46:57,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:46:57,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122336851] [2024-10-13 13:46:57,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:46:57,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547044874] [2024-10-13 13:46:57,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547044874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:46:57,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:46:57,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 13:46:57,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776895487] [2024-10-13 13:46:57,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:46:57,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 13:46:57,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:46:57,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 13:46:57,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:46:57,548 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:46:57,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:46:57,837 INFO L93 Difference]: Finished difference Result 141 states and 167 transitions. [2024-10-13 13:46:57,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:46:57,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2024-10-13 13:46:57,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:46:57,838 INFO L225 Difference]: With dead ends: 141 [2024-10-13 13:46:57,839 INFO L226 Difference]: Without dead ends: 130 [2024-10-13 13:46:57,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:46:57,840 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 154 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:46:57,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 222 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:46:57,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-10-13 13:46:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 125. [2024-10-13 13:46:57,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 78 states have (on average 1.6538461538461537) internal successors, (129), 115 states have internal predecessors, (129), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-13 13:46:57,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2024-10-13 13:46:57,850 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 20 [2024-10-13 13:46:57,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:46:57,851 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2024-10-13 13:46:57,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:46:57,851 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2024-10-13 13:46:57,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-13 13:46:57,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:46:57,852 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:46:57,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 13:46:58,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:46:58,057 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:46:58,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:46:58,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1679691756, now seen corresponding path program 1 times [2024-10-13 13:46:58,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:46:58,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067124744] [2024-10-13 13:46:58,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:46:58,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:46:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:46:58,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024818348] [2024-10-13 13:46:58,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:46:58,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:46:58,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:46:58,075 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:46:58,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 13:46:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:46:58,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 13:46:58,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:46:58,230 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:46:58,230 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:46:58,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:46:58,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067124744] [2024-10-13 13:46:58,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:46:58,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024818348] [2024-10-13 13:46:58,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024818348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:46:58,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:46:58,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 13:46:58,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438456420] [2024-10-13 13:46:58,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:46:58,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 13:46:58,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:46:58,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 13:46:58,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:46:58,233 INFO L87 Difference]: Start difference. First operand 125 states and 143 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:46:58,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:46:58,507 INFO L93 Difference]: Finished difference Result 171 states and 207 transitions. [2024-10-13 13:46:58,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:46:58,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-10-13 13:46:58,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:46:58,509 INFO L225 Difference]: With dead ends: 171 [2024-10-13 13:46:58,509 INFO L226 Difference]: Without dead ends: 155 [2024-10-13 13:46:58,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:46:58,510 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 296 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:46:58,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 200 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:46:58,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-10-13 13:46:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 152. [2024-10-13 13:46:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.6153846153846154) internal successors, (168), 141 states have internal predecessors, (168), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 13:46:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 184 transitions. [2024-10-13 13:46:58,519 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 184 transitions. Word has length 21 [2024-10-13 13:46:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:46:58,519 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 184 transitions. [2024-10-13 13:46:58,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:46:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 184 transitions. [2024-10-13 13:46:58,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-13 13:46:58,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:46:58,520 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:46:58,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 13:46:58,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 13:46:58,723 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:46:58,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:46:58,723 INFO L85 PathProgramCache]: Analyzing trace with hash 530836936, now seen corresponding path program 1 times [2024-10-13 13:46:58,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:46:58,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803976136] [2024-10-13 13:46:58,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:46:58,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:46:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:46:58,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466174777] [2024-10-13 13:46:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:46:58,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:46:58,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:46:58,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:46:58,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 13:46:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:46:58,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 13:46:58,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:46:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:46:58,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:46:58,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:46:58,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803976136] [2024-10-13 13:46:58,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:46:58,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466174777] [2024-10-13 13:46:58,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466174777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:46:58,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:46:58,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 13:46:58,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795783655] [2024-10-13 13:46:58,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:46:58,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 13:46:58,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:46:58,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 13:46:58,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:46:58,899 INFO L87 Difference]: Start difference. First operand 152 states and 184 transitions. Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:46:59,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:46:59,217 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2024-10-13 13:46:59,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:46:59,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2024-10-13 13:46:59,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:46:59,218 INFO L225 Difference]: With dead ends: 160 [2024-10-13 13:46:59,219 INFO L226 Difference]: Without dead ends: 159 [2024-10-13 13:46:59,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:46:59,220 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 372 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:46:59,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 228 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:46:59,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-13 13:46:59,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2024-10-13 13:46:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.6057692307692308) internal successors, (167), 141 states have internal predecessors, (167), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 13:46:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2024-10-13 13:46:59,231 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 22 [2024-10-13 13:46:59,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:46:59,231 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2024-10-13 13:46:59,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:46:59,232 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2024-10-13 13:46:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-13 13:46:59,232 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:46:59,232 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:46:59,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 13:46:59,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:46:59,433 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:46:59,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:46:59,434 INFO L85 PathProgramCache]: Analyzing trace with hash -723924114, now seen corresponding path program 1 times [2024-10-13 13:46:59,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:46:59,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075463760] [2024-10-13 13:46:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:46:59,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:46:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:46:59,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752105832] [2024-10-13 13:46:59,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:46:59,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:46:59,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:46:59,464 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:46:59,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 13:46:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:46:59,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-13 13:46:59,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:46:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:46:59,622 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:46:59,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:46:59,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075463760] [2024-10-13 13:46:59,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:46:59,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752105832] [2024-10-13 13:46:59,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752105832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:46:59,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:46:59,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 13:46:59,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972260382] [2024-10-13 13:46:59,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:46:59,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 13:46:59,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:46:59,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 13:46:59,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:46:59,626 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:46:59,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:46:59,873 INFO L93 Difference]: Finished difference Result 160 states and 190 transitions. [2024-10-13 13:46:59,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:46:59,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2024-10-13 13:46:59,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:46:59,875 INFO L225 Difference]: With dead ends: 160 [2024-10-13 13:46:59,875 INFO L226 Difference]: Without dead ends: 159 [2024-10-13 13:46:59,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:46:59,877 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 251 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:46:59,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 231 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:46:59,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-13 13:46:59,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2024-10-13 13:46:59,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.5961538461538463) internal successors, (166), 141 states have internal predecessors, (166), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 13:46:59,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 182 transitions. [2024-10-13 13:46:59,901 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 182 transitions. Word has length 23 [2024-10-13 13:46:59,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:46:59,902 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 182 transitions. [2024-10-13 13:46:59,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:46:59,902 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 182 transitions. [2024-10-13 13:46:59,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-13 13:46:59,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:46:59,903 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:46:59,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 13:47:00,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:00,104 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:00,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:00,104 INFO L85 PathProgramCache]: Analyzing trace with hash -966810998, now seen corresponding path program 1 times [2024-10-13 13:47:00,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:00,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396788799] [2024-10-13 13:47:00,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:00,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:00,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:00,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:00,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:00,187 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:00,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:00,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396788799] [2024-10-13 13:47:00,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396788799] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:00,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:00,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:00,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818322644] [2024-10-13 13:47:00,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:00,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:00,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:00,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:00,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:00,188 INFO L87 Difference]: Start difference. First operand 152 states and 182 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 13:47:01,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:01,168 INFO L93 Difference]: Finished difference Result 245 states and 291 transitions. [2024-10-13 13:47:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:01,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-10-13 13:47:01,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:01,170 INFO L225 Difference]: With dead ends: 245 [2024-10-13 13:47:01,170 INFO L226 Difference]: Without dead ends: 244 [2024-10-13 13:47:01,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:01,171 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 70 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:01,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 178 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 13:47:01,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-10-13 13:47:01,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 173. [2024-10-13 13:47:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 124 states have (on average 1.596774193548387) internal successors, (198), 161 states have internal predecessors, (198), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-13 13:47:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 216 transitions. [2024-10-13 13:47:01,179 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 216 transitions. Word has length 24 [2024-10-13 13:47:01,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:01,179 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 216 transitions. [2024-10-13 13:47:01,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 13:47:01,180 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 216 transitions. [2024-10-13 13:47:01,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-13 13:47:01,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:01,180 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:01,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 13:47:01,181 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:01,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:01,181 INFO L85 PathProgramCache]: Analyzing trace with hash 93630192, now seen corresponding path program 1 times [2024-10-13 13:47:01,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:01,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824210518] [2024-10-13 13:47:01,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:01,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:01,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:01,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:01,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:01,304 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:01,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:01,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824210518] [2024-10-13 13:47:01,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824210518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:01,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:01,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:01,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61552765] [2024-10-13 13:47:01,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:01,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:01,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:01,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:01,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:01,306 INFO L87 Difference]: Start difference. First operand 173 states and 216 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 13:47:03,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:03,164 INFO L93 Difference]: Finished difference Result 245 states and 289 transitions. [2024-10-13 13:47:03,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:03,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-10-13 13:47:03,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:03,166 INFO L225 Difference]: With dead ends: 245 [2024-10-13 13:47:03,166 INFO L226 Difference]: Without dead ends: 244 [2024-10-13 13:47:03,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:03,167 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 69 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:03,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 172 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-13 13:47:03,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-10-13 13:47:03,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 173. [2024-10-13 13:47:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 124 states have (on average 1.5806451612903225) internal successors, (196), 161 states have internal predecessors, (196), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-13 13:47:03,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 214 transitions. [2024-10-13 13:47:03,177 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 214 transitions. Word has length 25 [2024-10-13 13:47:03,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:03,178 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 214 transitions. [2024-10-13 13:47:03,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 13:47:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 214 transitions. [2024-10-13 13:47:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-13 13:47:03,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:03,178 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:03,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 13:47:03,179 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:03,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:03,179 INFO L85 PathProgramCache]: Analyzing trace with hash 591387408, now seen corresponding path program 1 times [2024-10-13 13:47:03,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:03,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911906121] [2024-10-13 13:47:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:03,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:03,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754664714] [2024-10-13 13:47:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:03,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:03,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:03,226 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:03,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 13:47:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:03,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:47:03,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:03,328 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:03,328 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:47:03,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:03,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911906121] [2024-10-13 13:47:03,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:03,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754664714] [2024-10-13 13:47:03,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754664714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:03,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:03,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:03,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055641975] [2024-10-13 13:47:03,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:03,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:03,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:03,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:03,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:03,329 INFO L87 Difference]: Start difference. First operand 173 states and 214 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:03,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:03,574 INFO L93 Difference]: Finished difference Result 183 states and 222 transitions. [2024-10-13 13:47:03,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:03,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-10-13 13:47:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:03,576 INFO L225 Difference]: With dead ends: 183 [2024-10-13 13:47:03,576 INFO L226 Difference]: Without dead ends: 180 [2024-10-13 13:47:03,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:47:03,576 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:03,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 118 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:47:03,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-10-13 13:47:03,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2024-10-13 13:47:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 128 states have (on average 1.5546875) internal successors, (199), 165 states have internal predecessors, (199), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-13 13:47:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 217 transitions. [2024-10-13 13:47:03,584 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 217 transitions. Word has length 38 [2024-10-13 13:47:03,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:03,584 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 217 transitions. [2024-10-13 13:47:03,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 217 transitions. [2024-10-13 13:47:03,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-13 13:47:03,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:03,585 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:03,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 13:47:03,785 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 [2024-10-13 13:47:03,786 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:03,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:03,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1166531614, now seen corresponding path program 1 times [2024-10-13 13:47:03,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:03,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092295070] [2024-10-13 13:47:03,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:03,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:03,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1557738708] [2024-10-13 13:47:03,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:03,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:03,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:03,818 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:03,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 13:47:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:03,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:47:03,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:03,911 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:47:03,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:03,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092295070] [2024-10-13 13:47:03,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:03,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557738708] [2024-10-13 13:47:03,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557738708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:03,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:03,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:03,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989053790] [2024-10-13 13:47:03,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:03,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:03,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:03,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:03,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:03,925 INFO L87 Difference]: Start difference. First operand 177 states and 217 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:04,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:04,182 INFO L93 Difference]: Finished difference Result 226 states and 285 transitions. [2024-10-13 13:47:04,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:04,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-10-13 13:47:04,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:04,184 INFO L225 Difference]: With dead ends: 226 [2024-10-13 13:47:04,184 INFO L226 Difference]: Without dead ends: 220 [2024-10-13 13:47:04,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:47:04,185 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 145 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:04,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 122 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:47:04,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-13 13:47:04,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 205. [2024-10-13 13:47:04,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 155 states have (on average 1.5741935483870968) internal successors, (244), 192 states have internal predecessors, (244), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 13:47:04,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 264 transitions. [2024-10-13 13:47:04,194 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 264 transitions. Word has length 39 [2024-10-13 13:47:04,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:04,194 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 264 transitions. [2024-10-13 13:47:04,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:04,195 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 264 transitions. [2024-10-13 13:47:04,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-13 13:47:04,195 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:04,196 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:04,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 13:47:04,400 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 [2024-10-13 13:47:04,400 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:04,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:04,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1153140560, now seen corresponding path program 1 times [2024-10-13 13:47:04,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:04,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115806446] [2024-10-13 13:47:04,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:04,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:04,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498516734] [2024-10-13 13:47:04,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:04,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:04,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:04,429 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:04,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 13:47:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:04,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:47:04,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:04,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:47:04,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:04,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115806446] [2024-10-13 13:47:04,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:04,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498516734] [2024-10-13 13:47:04,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498516734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:04,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:04,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:04,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864553208] [2024-10-13 13:47:04,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:04,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:04,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:04,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:04,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:04,519 INFO L87 Difference]: Start difference. First operand 205 states and 264 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:04,765 INFO L93 Difference]: Finished difference Result 266 states and 356 transitions. [2024-10-13 13:47:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:04,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-10-13 13:47:04,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:04,767 INFO L225 Difference]: With dead ends: 266 [2024-10-13 13:47:04,767 INFO L226 Difference]: Without dead ends: 260 [2024-10-13 13:47:04,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:47:04,768 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 188 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:04,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 99 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:47:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-10-13 13:47:04,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 240. [2024-10-13 13:47:04,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 189 states have (on average 1.6243386243386244) internal successors, (307), 226 states have internal predecessors, (307), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:04,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 329 transitions. [2024-10-13 13:47:04,778 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 329 transitions. Word has length 39 [2024-10-13 13:47:04,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:04,779 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 329 transitions. [2024-10-13 13:47:04,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:04,779 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 329 transitions. [2024-10-13 13:47:04,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-13 13:47:04,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:04,780 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:04,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-13 13:47:04,983 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 [2024-10-13 13:47:04,984 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:04,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:04,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1802741779, now seen corresponding path program 1 times [2024-10-13 13:47:04,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:04,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954894776] [2024-10-13 13:47:04,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:04,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:05,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044833339] [2024-10-13 13:47:05,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:05,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:05,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:05,002 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:05,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 13:47:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:05,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:47:05,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:05,108 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:05,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:47:05,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:05,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954894776] [2024-10-13 13:47:05,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:05,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044833339] [2024-10-13 13:47:05,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044833339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:05,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:05,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:05,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233377042] [2024-10-13 13:47:05,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:05,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:05,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:05,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:05,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:05,110 INFO L87 Difference]: Start difference. First operand 240 states and 329 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:05,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:05,371 INFO L93 Difference]: Finished difference Result 252 states and 336 transitions. [2024-10-13 13:47:05,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:05,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-10-13 13:47:05,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:05,372 INFO L225 Difference]: With dead ends: 252 [2024-10-13 13:47:05,373 INFO L226 Difference]: Without dead ends: 248 [2024-10-13 13:47:05,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:47:05,373 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 194 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:05,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 84 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:47:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-10-13 13:47:05,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 240. [2024-10-13 13:47:05,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 189 states have (on average 1.597883597883598) internal successors, (302), 226 states have internal predecessors, (302), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 324 transitions. [2024-10-13 13:47:05,381 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 324 transitions. Word has length 40 [2024-10-13 13:47:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:05,381 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 324 transitions. [2024-10-13 13:47:05,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 324 transitions. [2024-10-13 13:47:05,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-13 13:47:05,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:05,382 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:05,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-13 13:47:05,586 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 [2024-10-13 13:47:05,586 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:05,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:05,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1387619090, now seen corresponding path program 1 times [2024-10-13 13:47:05,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:05,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641093012] [2024-10-13 13:47:05,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:05,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:05,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:05,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:05,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:05,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-13 13:47:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:05,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:05,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641093012] [2024-10-13 13:47:05,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641093012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:05,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:05,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:05,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672601828] [2024-10-13 13:47:05,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:05,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:05,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:05,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:05,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:05,665 INFO L87 Difference]: Start difference. First operand 240 states and 324 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:06,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:06,233 INFO L93 Difference]: Finished difference Result 323 states and 416 transitions. [2024-10-13 13:47:06,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:06,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-10-13 13:47:06,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:06,238 INFO L225 Difference]: With dead ends: 323 [2024-10-13 13:47:06,238 INFO L226 Difference]: Without dead ends: 322 [2024-10-13 13:47:06,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:06,238 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 62 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:06,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 210 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 13:47:06,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-13 13:47:06,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 250. [2024-10-13 13:47:06,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 199 states have (on average 1.592964824120603) internal successors, (317), 236 states have internal predecessors, (317), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:06,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 339 transitions. [2024-10-13 13:47:06,253 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 339 transitions. Word has length 40 [2024-10-13 13:47:06,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:06,253 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 339 transitions. [2024-10-13 13:47:06,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 339 transitions. [2024-10-13 13:47:06,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-13 13:47:06,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:06,254 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:06,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 13:47:06,254 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:06,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:06,254 INFO L85 PathProgramCache]: Analyzing trace with hash 464588800, now seen corresponding path program 1 times [2024-10-13 13:47:06,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:06,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510938495] [2024-10-13 13:47:06,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:06,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-13 13:47:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,362 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:06,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:06,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510938495] [2024-10-13 13:47:06,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510938495] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:06,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:06,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 13:47:06,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403702848] [2024-10-13 13:47:06,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:06,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:47:06,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:06,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:47:06,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:47:06,364 INFO L87 Difference]: Start difference. First operand 250 states and 339 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:06,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:06,798 INFO L93 Difference]: Finished difference Result 352 states and 500 transitions. [2024-10-13 13:47:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:47:06,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2024-10-13 13:47:06,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:06,800 INFO L225 Difference]: With dead ends: 352 [2024-10-13 13:47:06,800 INFO L226 Difference]: Without dead ends: 350 [2024-10-13 13:47:06,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:47:06,800 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 480 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:06,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 89 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:47:06,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-10-13 13:47:06,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 256. [2024-10-13 13:47:06,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 205 states have (on average 1.5804878048780489) internal successors, (324), 242 states have internal predecessors, (324), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 346 transitions. [2024-10-13 13:47:06,808 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 346 transitions. Word has length 41 [2024-10-13 13:47:06,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:06,808 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 346 transitions. [2024-10-13 13:47:06,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:06,809 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 346 transitions. [2024-10-13 13:47:06,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-13 13:47:06,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:06,809 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:06,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 13:47:06,810 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:06,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:06,810 INFO L85 PathProgramCache]: Analyzing trace with hash 50420416, now seen corresponding path program 1 times [2024-10-13 13:47:06,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:06,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279851240] [2024-10-13 13:47:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:06,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-13 13:47:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:06,853 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:06,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:06,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279851240] [2024-10-13 13:47:06,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279851240] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:06,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:06,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:06,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328586558] [2024-10-13 13:47:06,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:06,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:06,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:06,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:06,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:06,855 INFO L87 Difference]: Start difference. First operand 256 states and 346 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:07,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:07,316 INFO L93 Difference]: Finished difference Result 323 states and 412 transitions. [2024-10-13 13:47:07,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:07,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-10-13 13:47:07,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:07,318 INFO L225 Difference]: With dead ends: 323 [2024-10-13 13:47:07,318 INFO L226 Difference]: Without dead ends: 322 [2024-10-13 13:47:07,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:07,318 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 61 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:07,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 213 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 13:47:07,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-13 13:47:07,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 266. [2024-10-13 13:47:07,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 215 states have (on average 1.5767441860465117) internal successors, (339), 252 states have internal predecessors, (339), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 361 transitions. [2024-10-13 13:47:07,326 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 361 transitions. Word has length 41 [2024-10-13 13:47:07,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:07,327 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 361 transitions. [2024-10-13 13:47:07,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 361 transitions. [2024-10-13 13:47:07,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-13 13:47:07,327 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:07,327 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:07,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 13:47:07,328 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:07,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:07,328 INFO L85 PathProgramCache]: Analyzing trace with hash 66518930, now seen corresponding path program 1 times [2024-10-13 13:47:07,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:07,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441612558] [2024-10-13 13:47:07,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:07,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:07,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:07,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:07,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:07,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-13 13:47:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:07,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:07,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441612558] [2024-10-13 13:47:07,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441612558] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:07,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:07,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:07,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107330158] [2024-10-13 13:47:07,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:07,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:07,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:07,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:07,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:07,405 INFO L87 Difference]: Start difference. First operand 266 states and 361 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:08,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:08,288 INFO L93 Difference]: Finished difference Result 323 states and 410 transitions. [2024-10-13 13:47:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:08,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-10-13 13:47:08,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:08,289 INFO L225 Difference]: With dead ends: 323 [2024-10-13 13:47:08,289 INFO L226 Difference]: Without dead ends: 322 [2024-10-13 13:47:08,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:08,290 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 60 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:08,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 216 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 13:47:08,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-13 13:47:08,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 268. [2024-10-13 13:47:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 217 states have (on average 1.5714285714285714) internal successors, (341), 254 states have internal predecessors, (341), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:08,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 363 transitions. [2024-10-13 13:47:08,297 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 363 transitions. Word has length 41 [2024-10-13 13:47:08,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:08,298 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 363 transitions. [2024-10-13 13:47:08,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:08,298 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 363 transitions. [2024-10-13 13:47:08,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 13:47:08,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:08,298 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:08,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 13:47:08,298 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:08,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:08,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1517351043, now seen corresponding path program 1 times [2024-10-13 13:47:08,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:08,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023211166] [2024-10-13 13:47:08,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:08,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:08,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:08,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:08,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:08,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-13 13:47:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:08,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:08,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023211166] [2024-10-13 13:47:08,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023211166] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:08,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:08,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 13:47:08,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802550957] [2024-10-13 13:47:08,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:08,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:47:08,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:08,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:47:08,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:47:08,365 INFO L87 Difference]: Start difference. First operand 268 states and 363 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:09,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:09,104 INFO L93 Difference]: Finished difference Result 275 states and 370 transitions. [2024-10-13 13:47:09,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:47:09,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2024-10-13 13:47:09,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:09,107 INFO L225 Difference]: With dead ends: 275 [2024-10-13 13:47:09,107 INFO L226 Difference]: Without dead ends: 273 [2024-10-13 13:47:09,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:47:09,108 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 386 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:09,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 115 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 13:47:09,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-10-13 13:47:09,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 268. [2024-10-13 13:47:09,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 217 states have (on average 1.5576036866359446) internal successors, (338), 254 states have internal predecessors, (338), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 360 transitions. [2024-10-13 13:47:09,117 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 360 transitions. Word has length 42 [2024-10-13 13:47:09,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:09,117 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 360 transitions. [2024-10-13 13:47:09,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:09,118 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 360 transitions. [2024-10-13 13:47:09,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 13:47:09,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:09,118 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:09,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 13:47:09,119 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:09,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:09,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1563033013, now seen corresponding path program 1 times [2024-10-13 13:47:09,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:09,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084761445] [2024-10-13 13:47:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:09,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:09,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:09,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:09,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:09,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-13 13:47:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:09,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:09,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084761445] [2024-10-13 13:47:09,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084761445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:09,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:09,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:09,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605800522] [2024-10-13 13:47:09,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:09,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:09,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:09,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:09,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:09,243 INFO L87 Difference]: Start difference. First operand 268 states and 360 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:10,154 INFO L93 Difference]: Finished difference Result 323 states and 404 transitions. [2024-10-13 13:47:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:10,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-10-13 13:47:10,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:10,155 INFO L225 Difference]: With dead ends: 323 [2024-10-13 13:47:10,155 INFO L226 Difference]: Without dead ends: 322 [2024-10-13 13:47:10,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:10,156 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 59 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:10,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 217 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 13:47:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-13 13:47:10,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 270. [2024-10-13 13:47:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 219 states have (on average 1.552511415525114) internal successors, (340), 256 states have internal predecessors, (340), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 362 transitions. [2024-10-13 13:47:10,165 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 362 transitions. Word has length 42 [2024-10-13 13:47:10,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:10,165 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 362 transitions. [2024-10-13 13:47:10,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 362 transitions. [2024-10-13 13:47:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 13:47:10,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:10,167 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:10,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 13:47:10,167 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:10,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:10,167 INFO L85 PathProgramCache]: Analyzing trace with hash 352887974, now seen corresponding path program 1 times [2024-10-13 13:47:10,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:10,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972672290] [2024-10-13 13:47:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:10,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:10,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [203471822] [2024-10-13 13:47:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:10,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:10,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:10,187 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:10,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 13:47:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:10,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-13 13:47:10,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:10,437 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:10,437 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:47:12,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:12,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972672290] [2024-10-13 13:47:12,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:12,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203471822] [2024-10-13 13:47:12,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203471822] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:47:12,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:47:12,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-13 13:47:12,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618548546] [2024-10-13 13:47:12,370 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:47:12,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 13:47:12,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:12,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 13:47:12,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:47:12,371 INFO L87 Difference]: Start difference. First operand 270 states and 362 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:12,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:12,912 INFO L93 Difference]: Finished difference Result 339 states and 460 transitions. [2024-10-13 13:47:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:47:12,912 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 42 [2024-10-13 13:47:12,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:12,913 INFO L225 Difference]: With dead ends: 339 [2024-10-13 13:47:12,913 INFO L226 Difference]: Without dead ends: 330 [2024-10-13 13:47:12,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-10-13 13:47:12,914 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 300 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:12,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 279 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 13:47:12,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-10-13 13:47:12,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 307. [2024-10-13 13:47:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 254 states have (on average 1.5039370078740157) internal successors, (382), 291 states have internal predecessors, (382), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 13:47:12,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 408 transitions. [2024-10-13 13:47:12,935 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 408 transitions. Word has length 42 [2024-10-13 13:47:12,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:12,935 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 408 transitions. [2024-10-13 13:47:12,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:12,936 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 408 transitions. [2024-10-13 13:47:12,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-13 13:47:12,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:12,936 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:12,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-13 13:47:13,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-13 13:47:13,141 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:13,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:13,141 INFO L85 PathProgramCache]: Analyzing trace with hash -499816236, now seen corresponding path program 1 times [2024-10-13 13:47:13,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:13,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254585400] [2024-10-13 13:47:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:13,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:13,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769446582] [2024-10-13 13:47:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:13,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:13,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:13,153 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:13,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 13:47:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:13,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 13:47:13,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:13,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:47:13,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:13,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254585400] [2024-10-13 13:47:13,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:13,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769446582] [2024-10-13 13:47:13,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769446582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:13,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:13,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 13:47:13,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850671683] [2024-10-13 13:47:13,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:13,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 13:47:13,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:13,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 13:47:13,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:47:13,276 INFO L87 Difference]: Start difference. First operand 307 states and 408 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:13,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:13,767 INFO L93 Difference]: Finished difference Result 315 states and 411 transitions. [2024-10-13 13:47:13,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:47:13,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-13 13:47:13,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:13,769 INFO L225 Difference]: With dead ends: 315 [2024-10-13 13:47:13,769 INFO L226 Difference]: Without dead ends: 305 [2024-10-13 13:47:13,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-10-13 13:47:13,770 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 158 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:13,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 303 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:47:13,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-10-13 13:47:13,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 301. [2024-10-13 13:47:13,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 250 states have (on average 1.484) internal successors, (371), 286 states have internal predecessors, (371), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 13:47:13,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 395 transitions. [2024-10-13 13:47:13,778 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 395 transitions. Word has length 43 [2024-10-13 13:47:13,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:13,778 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 395 transitions. [2024-10-13 13:47:13,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 395 transitions. [2024-10-13 13:47:13,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-13 13:47:13,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:13,778 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:13,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-13 13:47:13,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:13,983 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:13,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:13,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1945374644, now seen corresponding path program 1 times [2024-10-13 13:47:13,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:13,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595191643] [2024-10-13 13:47:13,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:13,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:13,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260441912] [2024-10-13 13:47:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:13,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:13,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:13,999 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:14,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 13:47:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:14,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-13 13:47:14,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:14,522 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:47:15,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:15,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595191643] [2024-10-13 13:47:15,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:15,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260441912] [2024-10-13 13:47:15,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260441912] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:47:15,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:47:15,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-13 13:47:15,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860643380] [2024-10-13 13:47:15,156 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:47:15,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 13:47:15,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:15,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 13:47:15,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-10-13 13:47:15,159 INFO L87 Difference]: Start difference. First operand 301 states and 395 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:20,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-13 13:47:20,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:20,732 INFO L93 Difference]: Finished difference Result 456 states and 620 transitions. [2024-10-13 13:47:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 13:47:20,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2024-10-13 13:47:20,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:20,733 INFO L225 Difference]: With dead ends: 456 [2024-10-13 13:47:20,733 INFO L226 Difference]: Without dead ends: 416 [2024-10-13 13:47:20,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2024-10-13 13:47:20,734 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 242 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:20,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 227 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 642 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-10-13 13:47:20,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-10-13 13:47:20,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 285. [2024-10-13 13:47:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 236 states have (on average 1.423728813559322) internal successors, (336), 272 states have internal predecessors, (336), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 13:47:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 356 transitions. [2024-10-13 13:47:20,758 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 356 transitions. Word has length 43 [2024-10-13 13:47:20,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:20,759 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 356 transitions. [2024-10-13 13:47:20,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:20,759 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 356 transitions. [2024-10-13 13:47:20,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-13 13:47:20,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:20,759 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:20,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-13 13:47:20,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:20,960 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:20,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:20,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1125736252, now seen corresponding path program 1 times [2024-10-13 13:47:20,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:20,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671979530] [2024-10-13 13:47:20,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:20,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:20,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254418317] [2024-10-13 13:47:20,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:20,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:20,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:20,982 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:20,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-13 13:47:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:21,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 13:47:21,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:21,153 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:47:21,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:21,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671979530] [2024-10-13 13:47:21,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:21,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254418317] [2024-10-13 13:47:21,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254418317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:21,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:21,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 13:47:21,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977661903] [2024-10-13 13:47:21,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:21,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:47:21,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:21,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:47:21,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:47:21,155 INFO L87 Difference]: Start difference. First operand 285 states and 356 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:21,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:21,473 INFO L93 Difference]: Finished difference Result 373 states and 485 transitions. [2024-10-13 13:47:21,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:47:21,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2024-10-13 13:47:21,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:21,474 INFO L225 Difference]: With dead ends: 373 [2024-10-13 13:47:21,474 INFO L226 Difference]: Without dead ends: 366 [2024-10-13 13:47:21,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:47:21,475 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 400 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:21,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 110 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:47:21,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-10-13 13:47:21,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 320. [2024-10-13 13:47:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 270 states have (on average 1.4333333333333333) internal successors, (387), 306 states have internal predecessors, (387), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 409 transitions. [2024-10-13 13:47:21,485 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 409 transitions. Word has length 45 [2024-10-13 13:47:21,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:21,485 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 409 transitions. [2024-10-13 13:47:21,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:21,485 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 409 transitions. [2024-10-13 13:47:21,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-13 13:47:21,486 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:21,486 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:21,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-13 13:47:21,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-13 13:47:21,687 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:21,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:21,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1194257458, now seen corresponding path program 1 times [2024-10-13 13:47:21,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130971368] [2024-10-13 13:47:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:21,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494031750] [2024-10-13 13:47:21,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:21,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:21,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:21,706 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:21,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-13 13:47:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:21,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-13 13:47:21,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:22,166 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:22,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:47:23,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:23,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130971368] [2024-10-13 13:47:23,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:23,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494031750] [2024-10-13 13:47:23,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494031750] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:47:23,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:47:23,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-10-13 13:47:23,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403744373] [2024-10-13 13:47:23,844 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:47:23,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 13:47:23,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:23,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 13:47:23,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-10-13 13:47:23,845 INFO L87 Difference]: Start difference. First operand 320 states and 409 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:26,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:26,716 INFO L93 Difference]: Finished difference Result 364 states and 464 transitions. [2024-10-13 13:47:26,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 13:47:26,718 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2024-10-13 13:47:26,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:26,720 INFO L225 Difference]: With dead ends: 364 [2024-10-13 13:47:26,720 INFO L226 Difference]: Without dead ends: 363 [2024-10-13 13:47:26,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-10-13 13:47:26,720 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 193 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:26,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 289 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-13 13:47:26,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-10-13 13:47:26,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 330. [2024-10-13 13:47:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 280 states have (on average 1.4142857142857144) internal successors, (396), 316 states have internal predecessors, (396), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 418 transitions. [2024-10-13 13:47:26,732 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 418 transitions. Word has length 45 [2024-10-13 13:47:26,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:26,732 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 418 transitions. [2024-10-13 13:47:26,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:26,732 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 418 transitions. [2024-10-13 13:47:26,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-13 13:47:26,733 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:26,733 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:26,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-13 13:47:26,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-13 13:47:26,937 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:26,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:26,937 INFO L85 PathProgramCache]: Analyzing trace with hash -538085305, now seen corresponding path program 1 times [2024-10-13 13:47:26,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:26,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463458728] [2024-10-13 13:47:26,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:26,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:26,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969291998] [2024-10-13 13:47:26,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:26,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:26,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:26,953 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:26,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-13 13:47:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:26,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 13:47:26,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:27,125 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:47:27,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:27,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463458728] [2024-10-13 13:47:27,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:27,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969291998] [2024-10-13 13:47:27,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969291998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:27,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:27,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 13:47:27,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079408436] [2024-10-13 13:47:27,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:27,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:47:27,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:27,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:47:27,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:47:27,127 INFO L87 Difference]: Start difference. First operand 330 states and 418 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:27,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:27,537 INFO L93 Difference]: Finished difference Result 356 states and 451 transitions. [2024-10-13 13:47:27,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:47:27,537 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2024-10-13 13:47:27,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:27,539 INFO L225 Difference]: With dead ends: 356 [2024-10-13 13:47:27,539 INFO L226 Difference]: Without dead ends: 355 [2024-10-13 13:47:27,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:47:27,539 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 392 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:27,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 95 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:47:27,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-10-13 13:47:27,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 330. [2024-10-13 13:47:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 280 states have (on average 1.4071428571428573) internal successors, (394), 316 states have internal predecessors, (394), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:27,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 416 transitions. [2024-10-13 13:47:27,549 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 416 transitions. Word has length 46 [2024-10-13 13:47:27,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:27,549 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 416 transitions. [2024-10-13 13:47:27,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 416 transitions. [2024-10-13 13:47:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-13 13:47:27,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:27,550 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:27,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-13 13:47:27,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:27,751 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:27,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:27,751 INFO L85 PathProgramCache]: Analyzing trace with hash 499224870, now seen corresponding path program 1 times [2024-10-13 13:47:27,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:27,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789254182] [2024-10-13 13:47:27,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:27,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:27,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:27,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:27,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:27,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-13 13:47:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:27,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:27,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789254182] [2024-10-13 13:47:27,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789254182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:27,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:27,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:27,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739957116] [2024-10-13 13:47:27,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:27,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:27,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:27,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:27,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:27,847 INFO L87 Difference]: Start difference. First operand 330 states and 416 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:28,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:28,545 INFO L93 Difference]: Finished difference Result 354 states and 437 transitions. [2024-10-13 13:47:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:28,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-10-13 13:47:28,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:28,546 INFO L225 Difference]: With dead ends: 354 [2024-10-13 13:47:28,546 INFO L226 Difference]: Without dead ends: 353 [2024-10-13 13:47:28,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:28,547 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 31 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:28,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 207 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-13 13:47:28,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-10-13 13:47:28,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 341. [2024-10-13 13:47:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 291 states have (on average 1.4123711340206186) internal successors, (411), 327 states have internal predecessors, (411), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:47:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 433 transitions. [2024-10-13 13:47:28,559 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 433 transitions. Word has length 47 [2024-10-13 13:47:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:28,559 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 433 transitions. [2024-10-13 13:47:28,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 433 transitions. [2024-10-13 13:47:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-13 13:47:28,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:28,560 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:28,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 13:47:28,560 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:28,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:28,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2063309992, now seen corresponding path program 1 times [2024-10-13 13:47:28,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:28,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126838052] [2024-10-13 13:47:28,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:28,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:28,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2114440732] [2024-10-13 13:47:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:28,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:28,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:28,579 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:28,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-13 13:47:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:28,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 13:47:28,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:28,848 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:28,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:47:28,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:28,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126838052] [2024-10-13 13:47:28,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:28,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114440732] [2024-10-13 13:47:28,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114440732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:28,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:28,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 13:47:28,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555162695] [2024-10-13 13:47:28,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:28,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 13:47:28,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:28,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 13:47:28,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:47:28,850 INFO L87 Difference]: Start difference. First operand 341 states and 433 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:29,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:29,362 INFO L93 Difference]: Finished difference Result 373 states and 471 transitions. [2024-10-13 13:47:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:47:29,362 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-10-13 13:47:29,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:29,363 INFO L225 Difference]: With dead ends: 373 [2024-10-13 13:47:29,363 INFO L226 Difference]: Without dead ends: 371 [2024-10-13 13:47:29,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:47:29,364 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:29,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 273 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 13:47:29,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-10-13 13:47:29,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 360. [2024-10-13 13:47:29,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 309 states have (on average 1.401294498381877) internal successors, (433), 345 states have internal predecessors, (433), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 13:47:29,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 457 transitions. [2024-10-13 13:47:29,378 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 457 transitions. Word has length 47 [2024-10-13 13:47:29,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:29,378 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 457 transitions. [2024-10-13 13:47:29,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:29,378 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 457 transitions. [2024-10-13 13:47:29,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-13 13:47:29,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:29,379 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:29,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-13 13:47:29,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:29,579 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:29,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1703898071, now seen corresponding path program 1 times [2024-10-13 13:47:29,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:29,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590537489] [2024-10-13 13:47:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:29,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:29,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:47:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:29,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 13:47:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:29,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 13:47:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:29,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-13 13:47:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:29,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 13:47:29,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:29,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590537489] [2024-10-13 13:47:29,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590537489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:47:29,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:47:29,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:47:29,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181192777] [2024-10-13 13:47:29,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:47:29,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:47:29,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:29,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:47:29,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:29,641 INFO L87 Difference]: Start difference. First operand 360 states and 457 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:30,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:30,039 INFO L93 Difference]: Finished difference Result 373 states and 459 transitions. [2024-10-13 13:47:30,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:47:30,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2024-10-13 13:47:30,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:30,040 INFO L225 Difference]: With dead ends: 373 [2024-10-13 13:47:30,040 INFO L226 Difference]: Without dead ends: 372 [2024-10-13 13:47:30,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:47:30,041 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 30 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:30,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 192 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:47:30,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-10-13 13:47:30,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 361. [2024-10-13 13:47:30,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 310 states have (on average 1.396774193548387) internal successors, (433), 346 states have internal predecessors, (433), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 13:47:30,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 457 transitions. [2024-10-13 13:47:30,052 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 457 transitions. Word has length 48 [2024-10-13 13:47:30,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:30,052 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 457 transitions. [2024-10-13 13:47:30,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:47:30,052 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 457 transitions. [2024-10-13 13:47:30,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-13 13:47:30,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:30,053 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:30,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-13 13:47:30,053 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:30,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:30,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1526397755, now seen corresponding path program 1 times [2024-10-13 13:47:30,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:30,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809532350] [2024-10-13 13:47:30,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:30,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:30,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157152792] [2024-10-13 13:47:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:30,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:30,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:30,071 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:30,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-13 13:47:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:30,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-13 13:47:30,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:30,281 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:30,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:47:30,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:30,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809532350] [2024-10-13 13:47:30,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:30,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157152792] [2024-10-13 13:47:30,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157152792] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:47:30,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:47:30,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-13 13:47:30,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071405521] [2024-10-13 13:47:30,993 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:47:30,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 13:47:30,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:30,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 13:47:30,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:47:30,994 INFO L87 Difference]: Start difference. First operand 361 states and 457 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:31,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:31,408 INFO L93 Difference]: Finished difference Result 393 states and 495 transitions. [2024-10-13 13:47:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:47:31,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2024-10-13 13:47:31,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:31,409 INFO L225 Difference]: With dead ends: 393 [2024-10-13 13:47:31,410 INFO L226 Difference]: Without dead ends: 391 [2024-10-13 13:47:31,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-10-13 13:47:31,410 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:31,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 276 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:47:31,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-10-13 13:47:31,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 381. [2024-10-13 13:47:31,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 329 states have (on average 1.3890577507598785) internal successors, (457), 365 states have internal predecessors, (457), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 13:47:31,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 483 transitions. [2024-10-13 13:47:31,422 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 483 transitions. Word has length 48 [2024-10-13 13:47:31,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:31,422 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 483 transitions. [2024-10-13 13:47:31,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:31,422 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 483 transitions. [2024-10-13 13:47:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-13 13:47:31,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:31,423 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:31,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-13 13:47:31,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-13 13:47:31,627 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:31,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:31,627 INFO L85 PathProgramCache]: Analyzing trace with hash 461899746, now seen corresponding path program 1 times [2024-10-13 13:47:31,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:31,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91831913] [2024-10-13 13:47:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:31,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306334695] [2024-10-13 13:47:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:31,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:31,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:31,642 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:31,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-13 13:47:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:31,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 13:47:31,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:32,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:47:32,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:32,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91831913] [2024-10-13 13:47:32,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:32,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306334695] [2024-10-13 13:47:32,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306334695] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:47:32,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:47:32,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-13 13:47:32,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930248525] [2024-10-13 13:47:32,863 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:47:32,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 13:47:32,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:32,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 13:47:32,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:47:32,863 INFO L87 Difference]: Start difference. First operand 381 states and 483 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:33,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:33,302 INFO L93 Difference]: Finished difference Result 610 states and 772 transitions. [2024-10-13 13:47:33,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 13:47:33,302 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2024-10-13 13:47:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:33,303 INFO L225 Difference]: With dead ends: 610 [2024-10-13 13:47:33,303 INFO L226 Difference]: Without dead ends: 382 [2024-10-13 13:47:33,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-13 13:47:33,304 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 151 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:33,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 249 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:47:33,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-10-13 13:47:33,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 375. [2024-10-13 13:47:33,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 323 states have (on average 1.3869969040247678) internal successors, (448), 359 states have internal predecessors, (448), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 13:47:33,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 474 transitions. [2024-10-13 13:47:33,316 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 474 transitions. Word has length 48 [2024-10-13 13:47:33,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:33,316 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 474 transitions. [2024-10-13 13:47:33,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:33,317 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 474 transitions. [2024-10-13 13:47:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-13 13:47:33,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:33,317 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:33,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-13 13:47:33,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-13 13:47:33,521 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:33,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash 73690207, now seen corresponding path program 1 times [2024-10-13 13:47:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:33,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132104131] [2024-10-13 13:47:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:33,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:33,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590829816] [2024-10-13 13:47:33,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:33,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:33,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:33,546 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:33,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-13 13:47:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:33,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-13 13:47:33,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:33,861 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:47:34,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:34,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132104131] [2024-10-13 13:47:34,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:34,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590829816] [2024-10-13 13:47:34,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590829816] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:47:34,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:47:34,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-13 13:47:34,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991607993] [2024-10-13 13:47:34,876 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:47:34,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 13:47:34,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:34,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 13:47:34,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-13 13:47:34,878 INFO L87 Difference]: Start difference. First operand 375 states and 474 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:35,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:35,431 INFO L93 Difference]: Finished difference Result 398 states and 501 transitions. [2024-10-13 13:47:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:47:35,432 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 49 [2024-10-13 13:47:35,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:35,433 INFO L225 Difference]: With dead ends: 398 [2024-10-13 13:47:35,433 INFO L226 Difference]: Without dead ends: 397 [2024-10-13 13:47:35,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-13 13:47:35,434 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 264 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:35,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 257 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 13:47:35,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-10-13 13:47:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 382. [2024-10-13 13:47:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 330 states have (on average 1.378787878787879) internal successors, (455), 366 states have internal predecessors, (455), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 13:47:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 481 transitions. [2024-10-13 13:47:35,447 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 481 transitions. Word has length 49 [2024-10-13 13:47:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:35,448 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 481 transitions. [2024-10-13 13:47:35,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:47:35,448 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 481 transitions. [2024-10-13 13:47:35,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-13 13:47:35,448 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:35,448 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:35,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-13 13:47:35,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-13 13:47:35,652 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:35,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:35,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1063504981, now seen corresponding path program 1 times [2024-10-13 13:47:35,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:35,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104249095] [2024-10-13 13:47:35,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:35,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:35,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473302025] [2024-10-13 13:47:35,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:35,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:35,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:35,670 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:35,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-13 13:47:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:35,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-13 13:47:35,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:35,840 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:47:35,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:35,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104249095] [2024-10-13 13:47:35,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:35,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473302025] [2024-10-13 13:47:35,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473302025] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:47:35,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:47:35,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-13 13:47:35,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541751825] [2024-10-13 13:47:35,967 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:47:35,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 13:47:35,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:35,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 13:47:35,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:47:35,968 INFO L87 Difference]: Start difference. First operand 382 states and 481 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:36,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:47:36,354 INFO L93 Difference]: Finished difference Result 442 states and 574 transitions. [2024-10-13 13:47:36,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 13:47:36,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2024-10-13 13:47:36,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:47:36,356 INFO L225 Difference]: With dead ends: 442 [2024-10-13 13:47:36,356 INFO L226 Difference]: Without dead ends: 433 [2024-10-13 13:47:36,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:47:36,357 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 124 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:47:36,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 119 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:47:36,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-10-13 13:47:36,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 365. [2024-10-13 13:47:36,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 322 states have (on average 1.326086956521739) internal successors, (427), 349 states have internal predecessors, (427), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 13:47:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 453 transitions. [2024-10-13 13:47:36,370 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 453 transitions. Word has length 50 [2024-10-13 13:47:36,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:47:36,370 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 453 transitions. [2024-10-13 13:47:36,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:47:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 453 transitions. [2024-10-13 13:47:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-13 13:47:36,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:47:36,371 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:47:36,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-13 13:47:36,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:36,576 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:47:36,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:47:36,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1391084007, now seen corresponding path program 1 times [2024-10-13 13:47:36,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:47:36,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825759118] [2024-10-13 13:47:36,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:36,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:47:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:47:36,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297017983] [2024-10-13 13:47:36,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:47:36,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:47:36,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:47:36,590 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:47:36,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-13 13:47:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:47:36,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 13:47:36,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:47:36,939 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:36,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:47:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:47:38,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:47:38,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825759118] [2024-10-13 13:47:38,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:47:38,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297017983] [2024-10-13 13:47:38,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297017983] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:47:38,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 13:47:38,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-10-13 13:47:38,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064056969] [2024-10-13 13:47:38,280 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 13:47:38,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-13 13:47:38,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:47:38,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-13 13:47:38,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:47:38,281 INFO L87 Difference]: Start difference. First operand 365 states and 453 transitions. Second operand has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:47:42,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-13 13:47:46,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-13 13:47:48,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-13 13:47:52,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-13 13:47:54,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-13 13:48:06,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0, 1] [2024-10-13 13:48:11,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0, 1] [2024-10-13 13:48:24,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:48:24,438 INFO L93 Difference]: Finished difference Result 959 states and 1311 transitions. [2024-10-13 13:48:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-13 13:48:24,438 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 51 [2024-10-13 13:48:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:48:24,441 INFO L225 Difference]: With dead ends: 959 [2024-10-13 13:48:24,441 INFO L226 Difference]: Without dead ends: 914 [2024-10-13 13:48:24,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=318, Invalid=872, Unknown=0, NotChecked=0, Total=1190 [2024-10-13 13:48:24,442 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 722 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 101 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2024-10-13 13:48:24,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 234 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1579 Invalid, 4 Unknown, 0 Unchecked, 37.8s Time] [2024-10-13 13:48:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-10-13 13:48:24,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 769. [2024-10-13 13:48:24,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 713 states have (on average 1.3758765778401123) internal successors, (981), 739 states have internal predecessors, (981), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 13:48:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1035 transitions. [2024-10-13 13:48:24,471 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1035 transitions. Word has length 51 [2024-10-13 13:48:24,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:48:24,471 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 1035 transitions. [2024-10-13 13:48:24,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:48:24,472 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1035 transitions. [2024-10-13 13:48:24,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-13 13:48:24,472 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:48:24,472 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:48:24,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-13 13:48:24,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-10-13 13:48:24,673 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:48:24,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:48:24,673 INFO L85 PathProgramCache]: Analyzing trace with hash 173931309, now seen corresponding path program 1 times [2024-10-13 13:48:24,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:48:24,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136944029] [2024-10-13 13:48:24,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:48:24,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:48:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:48:24,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350016769] [2024-10-13 13:48:24,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:48:24,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:48:24,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:48:24,687 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:48:24,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-13 13:48:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:48:24,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-13 13:48:24,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:48:24,913 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:48:24,913 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:48:25,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:48:25,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136944029] [2024-10-13 13:48:25,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:48:25,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350016769] [2024-10-13 13:48:25,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350016769] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:48:25,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:48:25,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-13 13:48:25,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766942292] [2024-10-13 13:48:25,296 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:48:25,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 13:48:25,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:48:25,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 13:48:25,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:48:25,297 INFO L87 Difference]: Start difference. First operand 769 states and 1035 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:48:25,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:48:25,591 INFO L93 Difference]: Finished difference Result 835 states and 1128 transitions. [2024-10-13 13:48:25,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 13:48:25,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2024-10-13 13:48:25,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:48:25,593 INFO L225 Difference]: With dead ends: 835 [2024-10-13 13:48:25,593 INFO L226 Difference]: Without dead ends: 830 [2024-10-13 13:48:25,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:48:25,595 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 192 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:48:25,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 48 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:48:25,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-10-13 13:48:25,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 580. [2024-10-13 13:48:25,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 537 states have (on average 1.3072625698324023) internal successors, (702), 558 states have internal predecessors, (702), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-13 13:48:25,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 740 transitions. [2024-10-13 13:48:25,633 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 740 transitions. Word has length 52 [2024-10-13 13:48:25,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:48:25,633 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 740 transitions. [2024-10-13 13:48:25,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-13 13:48:25,633 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 740 transitions. [2024-10-13 13:48:25,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 13:48:25,634 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:48:25,634 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:48:25,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-13 13:48:25,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:48:25,839 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-13 13:48:25,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:48:25,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1096903337, now seen corresponding path program 1 times [2024-10-13 13:48:25,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:48:25,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171420984] [2024-10-13 13:48:25,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:48:25,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:48:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:48:25,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [843864922] [2024-10-13 13:48:25,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:48:25,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:48:25,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:48:25,854 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:48:25,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-13 13:48:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:48:25,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 13:48:25,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:48:26,175 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:48:26,176 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:48:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 13:48:29,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:48:29,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171420984] [2024-10-13 13:48:29,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:48:29,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843864922] [2024-10-13 13:48:29,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843864922] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:48:29,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 13:48:29,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-10-13 13:48:29,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340687817] [2024-10-13 13:48:29,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 13:48:29,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-13 13:48:29,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:48:29,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-13 13:48:29,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-10-13 13:48:29,064 INFO L87 Difference]: Start difference. First operand 580 states and 740 transitions. Second operand has 16 states, 15 states have (on average 5.0) internal successors, (75), 14 states have internal predecessors, (75), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6)