./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/geo1-ll2_unwindbound20.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/geo1-ll2_unwindbound20.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 358d950fcb60363ca711e5ee684e998bf5a6b6b14c5043f9c788a7a76c08fd00 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:34:55,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:34:55,284 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 13:34:55,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:34:55,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:34:55,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:34:55,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:34:55,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:34:55,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:34:55,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:34:55,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:34:55,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:34:55,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:34:55,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:34:55,306 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:34:55,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:34:55,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:34:55,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 13:34:55,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:34:55,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 13:34:55,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:34:55,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:34:55,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:34:55,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:34:55,309 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:34:55,309 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:34:55,309 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:34:55,309 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 13:34:55,310 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:34:55,310 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:34:55,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:34:55,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:34:55,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:34:55,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:34:55,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:34:55,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:34:55,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:34:55,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:34:55,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:34:55,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:34:55,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:34:55,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:34:55,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:34:55,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:34:55,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 358d950fcb60363ca711e5ee684e998bf5a6b6b14c5043f9c788a7a76c08fd00 [2024-10-13 13:34:55,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:34:55,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:34:55,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:34:55,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:34:55,548 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:34:55,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound20.c [2024-10-13 13:34:56,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:34:57,029 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:34:57,030 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound20.c [2024-10-13 13:34:57,036 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bcd6d722/d9ba2a21e6b6454cacbbcd07b32a3917/FLAG401488fe3 [2024-10-13 13:34:57,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bcd6d722/d9ba2a21e6b6454cacbbcd07b32a3917 [2024-10-13 13:34:57,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:34:57,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:34:57,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:34:57,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:34:57,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:34:57,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a821b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57, skipping insertion in model container [2024-10-13 13:34:57,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,082 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:34:57,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:34:57,254 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:34:57,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:34:57,290 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:34:57,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57 WrapperNode [2024-10-13 13:34:57,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:34:57,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:34:57,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:34:57,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:34:57,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,324 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-10-13 13:34:57,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:34:57,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:34:57,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:34:57,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:34:57,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,337 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,349 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 13:34:57,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:34:57,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:34:57,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:34:57,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:34:57,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (1/1) ... [2024-10-13 13:34:57,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:34:57,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:34:57,398 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 13:34:57,401 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 13:34:57,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 13:34:57,437 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 13:34:57,437 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 13:34:57,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 13:34:57,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:34:57,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:34:57,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 13:34:57,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 13:34:57,484 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:34:57,486 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:34:57,661 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-10-13 13:34:57,661 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:34:57,681 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:34:57,681 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 13:34:57,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:34:57 BoogieIcfgContainer [2024-10-13 13:34:57,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:34:57,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:34:57,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:34:57,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:34:57,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:34:57" (1/3) ... [2024-10-13 13:34:57,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ff81de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:34:57, skipping insertion in model container [2024-10-13 13:34:57,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:34:57" (2/3) ... [2024-10-13 13:34:57,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ff81de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:34:57, skipping insertion in model container [2024-10-13 13:34:57,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:34:57" (3/3) ... [2024-10-13 13:34:57,688 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll2_unwindbound20.c [2024-10-13 13:34:57,700 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:34:57,700 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-13 13:34:57,756 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:34:57,762 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;@251bac8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:34:57,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-13 13:34:57,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:34:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-13 13:34:57,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:34:57,772 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:34:57,773 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:34:57,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:34:57,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2005083564, now seen corresponding path program 1 times [2024-10-13 13:34:57,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:34:57,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047792313] [2024-10-13 13:34:57,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:57,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:34:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:57,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:34:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:57,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:34:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:57,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:34:57,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:34:57,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047792313] [2024-10-13 13:34:57,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047792313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:34:57,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:34:57,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:34:57,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054425537] [2024-10-13 13:34:57,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:34:57,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 13:34:57,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:34:57,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 13:34:57,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:34:57,958 INFO L87 Difference]: Start difference. First operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 13:34:57,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:34:57,978 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2024-10-13 13:34:57,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 13:34:57,980 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-10-13 13:34:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:34:57,986 INFO L225 Difference]: With dead ends: 140 [2024-10-13 13:34:57,986 INFO L226 Difference]: Without dead ends: 68 [2024-10-13 13:34:57,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 13:34:57,990 INFO L432 NwaCegarLoop]: 72 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, 72 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 13:34:57,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:34:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-13 13:34:58,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-10-13 13:34:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 62 states have internal predecessors, (64), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:34:58,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2024-10-13 13:34:58,019 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 70 transitions. Word has length 14 [2024-10-13 13:34:58,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:34:58,019 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 70 transitions. [2024-10-13 13:34:58,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 13:34:58,020 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2024-10-13 13:34:58,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-13 13:34:58,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:34:58,021 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:34:58,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 13:34:58,021 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:34:58,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:34:58,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1246760684, now seen corresponding path program 1 times [2024-10-13 13:34:58,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:34:58,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39983700] [2024-10-13 13:34:58,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:58,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:34:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:58,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:34:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:58,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:34:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:58,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:34:58,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:34:58,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39983700] [2024-10-13 13:34:58,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39983700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:34:58,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:34:58,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:34:58,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545050124] [2024-10-13 13:34:58,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:34:58,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:34:58,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:34:58,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:34:58,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:34:58,175 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:34:58,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:34:58,220 INFO L93 Difference]: Finished difference Result 90 states and 92 transitions. [2024-10-13 13:34:58,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:34:58,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-13 13:34:58,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:34:58,222 INFO L225 Difference]: With dead ends: 90 [2024-10-13 13:34:58,224 INFO L226 Difference]: Without dead ends: 72 [2024-10-13 13:34:58,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 13:34:58,225 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 9 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:34:58,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 185 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:34:58,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-13 13:34:58,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-13 13:34:58,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 41 states have (on average 1.6585365853658536) internal successors, (68), 66 states have internal predecessors, (68), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:34:58,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2024-10-13 13:34:58,237 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 14 [2024-10-13 13:34:58,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:34:58,238 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2024-10-13 13:34:58,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:34:58,239 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2024-10-13 13:34:58,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-13 13:34:58,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:34:58,239 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:34:58,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 13:34:58,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:34:58,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:34:58,240 INFO L85 PathProgramCache]: Analyzing trace with hash 629682618, now seen corresponding path program 1 times [2024-10-13 13:34:58,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:34:58,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069925486] [2024-10-13 13:34:58,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:58,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:34:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:34:58,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364751427] [2024-10-13 13:34:58,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:58,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:34:58,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:34:58,298 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 13:34:58,304 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 13:34:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:58,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:34:58,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:34:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:34:58,433 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:34:58,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:34:58,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069925486] [2024-10-13 13:34:58,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:34:58,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364751427] [2024-10-13 13:34:58,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364751427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:34:58,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:34:58,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:34:58,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48317850] [2024-10-13 13:34:58,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:34:58,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:34:58,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:34:58,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:34:58,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:34:58,440 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:34:58,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:34:58,603 INFO L93 Difference]: Finished difference Result 99 states and 114 transitions. [2024-10-13 13:34:58,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:34:58,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-10-13 13:34:58,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:34:58,605 INFO L225 Difference]: With dead ends: 99 [2024-10-13 13:34:58,605 INFO L226 Difference]: Without dead ends: 94 [2024-10-13 13:34:58,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 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 13:34:58,606 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 51 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:34:58,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 70 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:34:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-13 13:34:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-10-13 13:34:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 83 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:34:58,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2024-10-13 13:34:58,615 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 17 [2024-10-13 13:34:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:34:58,615 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2024-10-13 13:34:58,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:34:58,615 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2024-10-13 13:34:58,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-13 13:34:58,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:34:58,616 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:34:58,630 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 13:34:58,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:34:58,821 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:34:58,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:34:58,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1954675269, now seen corresponding path program 1 times [2024-10-13 13:34:58,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:34:58,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705247760] [2024-10-13 13:34:58,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:58,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:34:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:34:58,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842066072] [2024-10-13 13:34:58,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:58,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:34:58,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:34:58,836 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 13:34:58,837 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 13:34:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:58,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:34:58,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:34:58,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:34:58,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:34:58,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:34:58,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705247760] [2024-10-13 13:34:58,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:34:58,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842066072] [2024-10-13 13:34:58,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842066072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:34:58,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:34:58,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:34:58,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788476297] [2024-10-13 13:34:58,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:34:58,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:34:58,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:34:58,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:34:58,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:34:58,927 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:34:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:34:59,029 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2024-10-13 13:34:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:34:59,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-10-13 13:34:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:34:59,031 INFO L225 Difference]: With dead ends: 99 [2024-10-13 13:34:59,032 INFO L226 Difference]: Without dead ends: 93 [2024-10-13 13:34:59,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 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 13:34:59,033 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 50 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:34:59,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 70 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:34:59,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-13 13:34:59,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-10-13 13:34:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.5666666666666667) internal successors, (94), 84 states have internal predecessors, (94), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:34:59,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2024-10-13 13:34:59,041 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 18 [2024-10-13 13:34:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:34:59,041 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2024-10-13 13:34:59,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:34:59,041 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2024-10-13 13:34:59,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-13 13:34:59,042 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:34:59,042 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:34:59,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 13:34:59,242 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,SelfDestructingSolverStorable3 [2024-10-13 13:34:59,243 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:34:59,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:34:59,244 INFO L85 PathProgramCache]: Analyzing trace with hash -564284930, now seen corresponding path program 1 times [2024-10-13 13:34:59,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:34:59,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361123255] [2024-10-13 13:34:59,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:59,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:34:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:34:59,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135179995] [2024-10-13 13:34:59,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:59,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:34:59,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:34:59,264 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 13:34:59,265 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 13:34:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:59,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:34:59,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:34:59,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:34:59,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:34:59,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:34:59,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361123255] [2024-10-13 13:34:59,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:34:59,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135179995] [2024-10-13 13:34:59,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135179995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:34:59,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:34:59,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:34:59,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136985560] [2024-10-13 13:34:59,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:34:59,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:34:59,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:34:59,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:34:59,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:34:59,348 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:34:59,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:34:59,464 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2024-10-13 13:34:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:34:59,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-10-13 13:34:59,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:34:59,466 INFO L225 Difference]: With dead ends: 95 [2024-10-13 13:34:59,466 INFO L226 Difference]: Without dead ends: 93 [2024-10-13 13:34:59,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:34:59,467 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:34:59,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 74 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:34:59,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-13 13:34:59,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-10-13 13:34:59,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 84 states have internal predecessors, (92), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:34:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2024-10-13 13:34:59,473 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 21 [2024-10-13 13:34:59,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:34:59,473 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2024-10-13 13:34:59,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:34:59,473 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2024-10-13 13:34:59,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-13 13:34:59,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:34:59,474 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:34:59,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 13:34:59,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:34:59,679 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:34:59,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:34:59,680 INFO L85 PathProgramCache]: Analyzing trace with hash -312963585, now seen corresponding path program 1 times [2024-10-13 13:34:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:34:59,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169023602] [2024-10-13 13:34:59,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:59,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:34:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:59,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:34:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:59,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:34:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:59,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:34:59,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:34:59,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169023602] [2024-10-13 13:34:59,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169023602] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:34:59,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159482729] [2024-10-13 13:34:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:34:59,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:34:59,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:34:59,798 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 13:34:59,801 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 13:34:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:34:59,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:34:59,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:34:59,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:34:59,888 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:34:59,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159482729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:34:59,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:34:59,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-13 13:34:59,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44765895] [2024-10-13 13:34:59,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:34:59,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:34:59,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:34:59,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:34:59,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:34:59,890 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:35:00,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:00,030 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2024-10-13 13:35:00,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:35:00,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-10-13 13:35:00,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:00,032 INFO L225 Difference]: With dead ends: 95 [2024-10-13 13:35:00,032 INFO L226 Difference]: Without dead ends: 93 [2024-10-13 13:35:00,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:35:00,033 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:00,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 76 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:35:00,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-13 13:35:00,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-10-13 13:35:00,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.5) internal successors, (90), 84 states have internal predecessors, (90), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2024-10-13 13:35:00,041 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 22 [2024-10-13 13:35:00,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:00,042 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2024-10-13 13:35:00,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:35:00,042 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2024-10-13 13:35:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-13 13:35:00,042 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:00,042 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 13:35:00,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 13:35:00,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:00,243 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:00,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash 697166701, now seen corresponding path program 1 times [2024-10-13 13:35:00,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:00,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635458327] [2024-10-13 13:35:00,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:00,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:00,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:00,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:00,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:35:00,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:00,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635458327] [2024-10-13 13:35:00,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635458327] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:00,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133037111] [2024-10-13 13:35:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:00,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:00,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:00,349 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 13:35:00,350 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 13:35:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:00,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 13:35:00,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:35:00,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:35:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:35:00,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133037111] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:35:00,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:35:00,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-13 13:35:00,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699814666] [2024-10-13 13:35:00,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:35:00,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:35:00,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:00,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:35:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:35:00,559 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:35:00,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:00,649 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2024-10-13 13:35:00,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:35:00,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 31 [2024-10-13 13:35:00,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:00,650 INFO L225 Difference]: With dead ends: 91 [2024-10-13 13:35:00,661 INFO L226 Difference]: Without dead ends: 90 [2024-10-13 13:35:00,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:35:00,662 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 34 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:00,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 120 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:35:00,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-13 13:35:00,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-13 13:35:00,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.4666666666666666) internal successors, (88), 83 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-10-13 13:35:00,676 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 31 [2024-10-13 13:35:00,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:00,676 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-10-13 13:35:00,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:35:00,677 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-10-13 13:35:00,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-13 13:35:00,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:00,679 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 13:35:00,691 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 13:35:00,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:00,884 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:00,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:00,885 INFO L85 PathProgramCache]: Analyzing trace with hash 697166744, now seen corresponding path program 1 times [2024-10-13 13:35:00,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:00,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268280858] [2024-10-13 13:35:00,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:00,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:00,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:00,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:00,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:00,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:00,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268280858] [2024-10-13 13:35:00,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268280858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:00,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:35:00,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:35:00,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753921434] [2024-10-13 13:35:00,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:00,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:35:00,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:00,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:35:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:35:00,926 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:00,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:00,942 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2024-10-13 13:35:00,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:35:00,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-10-13 13:35:00,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:00,943 INFO L225 Difference]: With dead ends: 92 [2024-10-13 13:35:00,943 INFO L226 Difference]: Without dead ends: 90 [2024-10-13 13:35:00,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 13:35:00,944 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:00,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 123 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:35:00,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-13 13:35:00,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-13 13:35:00,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 83 states have internal predecessors, (86), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:00,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2024-10-13 13:35:00,954 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 31 [2024-10-13 13:35:00,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:00,954 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2024-10-13 13:35:00,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:00,954 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2024-10-13 13:35:00,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-13 13:35:00,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:00,955 INFO L215 NwaCegarLoop]: trace histogram [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 13:35:00,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 13:35:00,955 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:00,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1865638799, now seen corresponding path program 1 times [2024-10-13 13:35:00,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:00,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817830728] [2024-10-13 13:35:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:00,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:01,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:01,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817830728] [2024-10-13 13:35:01,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817830728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:01,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:35:01,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:35:01,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82709190] [2024-10-13 13:35:01,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:01,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:35:01,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:01,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:35:01,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:35:01,033 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:01,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:01,205 INFO L93 Difference]: Finished difference Result 124 states and 145 transitions. [2024-10-13 13:35:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:35:01,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-10-13 13:35:01,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:01,207 INFO L225 Difference]: With dead ends: 124 [2024-10-13 13:35:01,207 INFO L226 Difference]: Without dead ends: 123 [2024-10-13 13:35:01,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:35:01,208 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 46 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:01,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 94 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:35:01,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-10-13 13:35:01,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 91. [2024-10-13 13:35:01,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 84 states have internal predecessors, (87), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:01,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2024-10-13 13:35:01,213 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 35 [2024-10-13 13:35:01,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:01,213 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2024-10-13 13:35:01,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:01,213 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2024-10-13 13:35:01,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-13 13:35:01,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:01,214 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 13:35:01,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 13:35:01,214 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:01,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:01,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2000227819, now seen corresponding path program 1 times [2024-10-13 13:35:01,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:01,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007469959] [2024-10-13 13:35:01,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:01,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:01,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:01,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007469959] [2024-10-13 13:35:01,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007469959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:01,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:35:01,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:35:01,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989996181] [2024-10-13 13:35:01,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:01,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:35:01,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:01,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:35:01,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:35:01,265 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:01,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:01,444 INFO L93 Difference]: Finished difference Result 93 states and 97 transitions. [2024-10-13 13:35:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:35:01,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-10-13 13:35:01,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:01,445 INFO L225 Difference]: With dead ends: 93 [2024-10-13 13:35:01,445 INFO L226 Difference]: Without dead ends: 92 [2024-10-13 13:35:01,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:35:01,446 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 20 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:01,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 81 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:35:01,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-13 13:35:01,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-13 13:35:01,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 85 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2024-10-13 13:35:01,450 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 36 [2024-10-13 13:35:01,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:01,450 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2024-10-13 13:35:01,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:01,451 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2024-10-13 13:35:01,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-13 13:35:01,451 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:01,451 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 13:35:01,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 13:35:01,452 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:01,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:01,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1877520141, now seen corresponding path program 1 times [2024-10-13 13:35:01,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:01,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119246080] [2024-10-13 13:35:01,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:01,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:01,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:01,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119246080] [2024-10-13 13:35:01,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119246080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:01,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:35:01,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:35:01,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453873111] [2024-10-13 13:35:01,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:01,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:35:01,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:01,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:35:01,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:35:01,489 INFO L87 Difference]: Start difference. First operand 92 states and 96 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:01,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:01,864 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2024-10-13 13:35:01,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:35:01,864 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-10-13 13:35:01,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:01,865 INFO L225 Difference]: With dead ends: 101 [2024-10-13 13:35:01,865 INFO L226 Difference]: Without dead ends: 99 [2024-10-13 13:35:01,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:35:01,866 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 17 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:01,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 82 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:35:01,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-13 13:35:01,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2024-10-13 13:35:01,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 91 states have internal predecessors, (98), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:01,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2024-10-13 13:35:01,871 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 37 [2024-10-13 13:35:01,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:01,871 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2024-10-13 13:35:01,871 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2024-10-13 13:35:01,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-13 13:35:01,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:01,872 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 13:35:01,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 13:35:01,872 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:01,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:01,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1363314110, now seen corresponding path program 1 times [2024-10-13 13:35:01,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:01,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330742756] [2024-10-13 13:35:01,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:01,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:35:01,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745170639] [2024-10-13 13:35:01,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:01,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:01,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:01,882 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 13:35:01,883 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 13:35:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:01,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:35:01,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:02,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:35:02,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:35:02,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:02,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330742756] [2024-10-13 13:35:02,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:35:02,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745170639] [2024-10-13 13:35:02,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745170639] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:02,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:35:02,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-13 13:35:02,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127589641] [2024-10-13 13:35:02,112 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:35:02,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:35:02,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:02,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:35:02,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:35:02,113 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:02,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:02,198 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2024-10-13 13:35:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:35:02,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2024-10-13 13:35:02,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:02,200 INFO L225 Difference]: With dead ends: 98 [2024-10-13 13:35:02,200 INFO L226 Difference]: Without dead ends: 97 [2024-10-13 13:35:02,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:35:02,200 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 21 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:02,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 110 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:35:02,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-13 13:35:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-10-13 13:35:02,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 90 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2024-10-13 13:35:02,205 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 37 [2024-10-13 13:35:02,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:02,206 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2024-10-13 13:35:02,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:02,206 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2024-10-13 13:35:02,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-13 13:35:02,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:02,206 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 13:35:02,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 13:35:02,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:02,407 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:02,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:02,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1926417879, now seen corresponding path program 1 times [2024-10-13 13:35:02,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:02,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908417888] [2024-10-13 13:35:02,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:02,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:02,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:02,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:02,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:02,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:02,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908417888] [2024-10-13 13:35:02,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908417888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:02,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:35:02,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:35:02,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130985940] [2024-10-13 13:35:02,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:02,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:35:02,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:02,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:35:02,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:35:02,458 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:02,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:02,708 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2024-10-13 13:35:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:35:02,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-10-13 13:35:02,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:02,709 INFO L225 Difference]: With dead ends: 99 [2024-10-13 13:35:02,709 INFO L226 Difference]: Without dead ends: 90 [2024-10-13 13:35:02,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:35:02,710 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 19 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:02,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 84 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:35:02,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-13 13:35:02,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-13 13:35:02,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 83 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:02,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-10-13 13:35:02,714 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 38 [2024-10-13 13:35:02,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:02,714 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-10-13 13:35:02,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:02,714 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-10-13 13:35:02,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-13 13:35:02,715 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:02,715 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 13:35:02,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 13:35:02,715 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:02,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:02,715 INFO L85 PathProgramCache]: Analyzing trace with hash -686935463, now seen corresponding path program 1 times [2024-10-13 13:35:02,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:02,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155259020] [2024-10-13 13:35:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:02,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:35:02,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [298805800] [2024-10-13 13:35:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:02,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:02,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:02,725 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 13:35:02,725 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 13:35:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:02,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:35:02,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:02,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:35:02,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:35:03,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:03,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155259020] [2024-10-13 13:35:03,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:35:03,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298805800] [2024-10-13 13:35:03,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298805800] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:03,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:35:03,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-13 13:35:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514909041] [2024-10-13 13:35:03,324 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:35:03,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:35:03,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:03,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:35:03,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:35:03,325 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:03,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:03,513 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2024-10-13 13:35:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:35:03,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-10-13 13:35:03,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:03,514 INFO L225 Difference]: With dead ends: 93 [2024-10-13 13:35:03,514 INFO L226 Difference]: Without dead ends: 92 [2024-10-13 13:35:03,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:35:03,515 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 62 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:03,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 120 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:35:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-13 13:35:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-13 13:35:03,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 64 states have (on average 1.40625) internal successors, (90), 85 states have internal predecessors, (90), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:03,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2024-10-13 13:35:03,519 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 38 [2024-10-13 13:35:03,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:03,519 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2024-10-13 13:35:03,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:03,519 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2024-10-13 13:35:03,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-13 13:35:03,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:03,520 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 13:35:03,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 13:35:03,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:03,721 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:03,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:03,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1279984923, now seen corresponding path program 1 times [2024-10-13 13:35:03,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:03,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537932019] [2024-10-13 13:35:03,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:03,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:03,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:03,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:03,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:03,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:03,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537932019] [2024-10-13 13:35:03,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537932019] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:03,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172732153] [2024-10-13 13:35:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:03,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:03,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:03,794 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 13:35:03,801 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 13:35:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:03,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:35:03,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:03,889 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:35:03,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172732153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:03,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:35:03,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-13 13:35:03,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35225048] [2024-10-13 13:35:03,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:03,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:35:03,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:03,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:35:03,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:35:03,891 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:03,909 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2024-10-13 13:35:03,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:35:03,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-10-13 13:35:03,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:03,911 INFO L225 Difference]: With dead ends: 92 [2024-10-13 13:35:03,911 INFO L226 Difference]: Without dead ends: 91 [2024-10-13 13:35:03,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-13 13:35:03,911 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 43 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:03,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 116 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:35:03,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-13 13:35:03,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-10-13 13:35:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 64 states have (on average 1.390625) internal successors, (89), 84 states have internal predecessors, (89), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:03,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 97 transitions. [2024-10-13 13:35:03,915 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 97 transitions. Word has length 40 [2024-10-13 13:35:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:03,915 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 97 transitions. [2024-10-13 13:35:03,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:03,915 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 97 transitions. [2024-10-13 13:35:03,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-13 13:35:03,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:03,916 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-10-13 13:35:03,931 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 13:35:04,120 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,SelfDestructingSolverStorable14 [2024-10-13 13:35:04,121 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:04,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:04,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1024826993, now seen corresponding path program 1 times [2024-10-13 13:35:04,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:04,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745090910] [2024-10-13 13:35:04,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:04,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:04,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:04,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:04,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:04,179 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:04,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:04,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745090910] [2024-10-13 13:35:04,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745090910] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:04,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712452239] [2024-10-13 13:35:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:04,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:04,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:04,184 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 13:35:04,188 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 13:35:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:04,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 13:35:04,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:04,269 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:35:04,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712452239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:04,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:35:04,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-13 13:35:04,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577923622] [2024-10-13 13:35:04,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:04,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:35:04,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:04,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:35:04,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:35:04,272 INFO L87 Difference]: Start difference. First operand 91 states and 97 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:04,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:04,306 INFO L93 Difference]: Finished difference Result 95 states and 97 transitions. [2024-10-13 13:35:04,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:35:04,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-10-13 13:35:04,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:04,307 INFO L225 Difference]: With dead ends: 95 [2024-10-13 13:35:04,307 INFO L226 Difference]: Without dead ends: 94 [2024-10-13 13:35:04,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-13 13:35:04,308 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 36 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:04,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 208 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:35:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-13 13:35:04,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-10-13 13:35:04,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.375) internal successors, (88), 83 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2024-10-13 13:35:04,327 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 41 [2024-10-13 13:35:04,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:04,327 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2024-10-13 13:35:04,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 13:35:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2024-10-13 13:35:04,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-13 13:35:04,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:04,330 INFO L215 NwaCegarLoop]: trace histogram [2, 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, 1] [2024-10-13 13:35:04,349 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 13:35:04,534 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,SelfDestructingSolverStorable15 [2024-10-13 13:35:04,536 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:04,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:04,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1311231059, now seen corresponding path program 1 times [2024-10-13 13:35:04,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:04,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547088916] [2024-10-13 13:35:04,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:04,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:35:04,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943045515] [2024-10-13 13:35:04,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:04,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:04,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:04,557 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 13:35:04,558 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 13:35:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:04,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 13:35:04,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:35:04,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:35:05,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:05,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547088916] [2024-10-13 13:35:05,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:35:05,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943045515] [2024-10-13 13:35:05,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943045515] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:05,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:35:05,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-13 13:35:05,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344321566] [2024-10-13 13:35:05,180 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:35:05,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 13:35:05,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:05,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 13:35:05,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:35:05,181 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 8 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:05,299 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2024-10-13 13:35:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:35:05,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 43 [2024-10-13 13:35:05,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:05,300 INFO L225 Difference]: With dead ends: 90 [2024-10-13 13:35:05,300 INFO L226 Difference]: Without dead ends: 85 [2024-10-13 13:35:05,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:35:05,301 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 21 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:05,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 153 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:35:05,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-13 13:35:05,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-13 13:35:05,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 64 states have (on average 1.28125) internal successors, (82), 78 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:05,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2024-10-13 13:35:05,304 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 43 [2024-10-13 13:35:05,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:05,305 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2024-10-13 13:35:05,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:05,305 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2024-10-13 13:35:05,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-13 13:35:05,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:05,305 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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 13:35:05,318 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 13:35:05,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-13 13:35:05,510 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:05,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:05,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1993457218, now seen corresponding path program 1 times [2024-10-13 13:35:05,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:05,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424204901] [2024-10-13 13:35:05,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:05,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:35:05,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095894876] [2024-10-13 13:35:05,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:05,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:05,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:05,524 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 13:35:05,529 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 13:35:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:05,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 13:35:05,562 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:35:05,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:35:06,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:06,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424204901] [2024-10-13 13:35:06,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:35:06,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095894876] [2024-10-13 13:35:06,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095894876] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:06,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:35:06,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-13 13:35:06,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484454503] [2024-10-13 13:35:06,260 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 13:35:06,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 13:35:06,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:06,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 13:35:06,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:35:06,261 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:06,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:06,357 INFO L93 Difference]: Finished difference Result 120 states and 132 transitions. [2024-10-13 13:35:06,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:35:06,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2024-10-13 13:35:06,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:06,358 INFO L225 Difference]: With dead ends: 120 [2024-10-13 13:35:06,358 INFO L226 Difference]: Without dead ends: 115 [2024-10-13 13:35:06,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-13 13:35:06,359 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 69 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:06,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 126 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:35:06,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-13 13:35:06,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-10-13 13:35:06,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 105 states have internal predecessors, (116), 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 13:35:06,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2024-10-13 13:35:06,363 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 44 [2024-10-13 13:35:06,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:06,363 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2024-10-13 13:35:06,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:06,363 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2024-10-13 13:35:06,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-13 13:35:06,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:06,364 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:35:06,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-13 13:35:06,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-13 13:35:06,564 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:06,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:06,565 INFO L85 PathProgramCache]: Analyzing trace with hash 553102530, now seen corresponding path program 1 times [2024-10-13 13:35:06,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:06,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159424704] [2024-10-13 13:35:06,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:06,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:06,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:06,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:06,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 13:35:06,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:06,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159424704] [2024-10-13 13:35:06,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159424704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:06,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:35:06,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:35:06,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736860305] [2024-10-13 13:35:06,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:06,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:35:06,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:06,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:35:06,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:35:06,646 INFO L87 Difference]: Start difference. First operand 113 states and 126 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 13:35:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:06,860 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2024-10-13 13:35:06,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:35:06,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 47 [2024-10-13 13:35:06,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:06,861 INFO L225 Difference]: With dead ends: 113 [2024-10-13 13:35:06,862 INFO L226 Difference]: Without dead ends: 112 [2024-10-13 13:35:06,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 13:35:06,862 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 48 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:06,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 74 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:35:06,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-13 13:35:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-10-13 13:35:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 104 states have internal predecessors, (114), 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 13:35:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2024-10-13 13:35:06,869 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 47 [2024-10-13 13:35:06,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:06,871 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2024-10-13 13:35:06,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 13:35:06,871 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2024-10-13 13:35:06,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-13 13:35:06,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:06,872 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2024-10-13 13:35:06,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 13:35:06,872 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:06,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:06,872 INFO L85 PathProgramCache]: Analyzing trace with hash 571234327, now seen corresponding path program 1 times [2024-10-13 13:35:06,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:06,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273323633] [2024-10-13 13:35:06,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:06,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:35:06,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1723047150] [2024-10-13 13:35:06,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:06,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:06,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:06,885 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 13:35:06,886 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 13:35:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:06,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 13:35:06,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:07,025 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:07,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:35:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:07,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:07,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273323633] [2024-10-13 13:35:07,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 13:35:07,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723047150] [2024-10-13 13:35:07,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723047150] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:35:07,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 13:35:07,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-13 13:35:07,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606539911] [2024-10-13 13:35:07,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 13:35:07,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 13:35:07,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:07,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 13:35:07,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-13 13:35:07,727 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 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 13:35:08,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:08,348 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2024-10-13 13:35:08,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:35:08,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 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 47 [2024-10-13 13:35:08,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:08,349 INFO L225 Difference]: With dead ends: 132 [2024-10-13 13:35:08,349 INFO L226 Difference]: Without dead ends: 129 [2024-10-13 13:35:08,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:35:08,350 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 35 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:08,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 156 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 13:35:08,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-10-13 13:35:08,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2024-10-13 13:35:08,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 102 states have (on average 1.2352941176470589) internal successors, (126), 115 states have internal predecessors, (126), 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 13:35:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2024-10-13 13:35:08,355 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 47 [2024-10-13 13:35:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:08,355 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2024-10-13 13:35:08,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.857142857142858) internal successors, (69), 8 states have internal predecessors, (69), 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 13:35:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2024-10-13 13:35:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-13 13:35:08,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:08,356 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:35:08,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-13 13:35:08,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:08,559 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:08,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:08,560 INFO L85 PathProgramCache]: Analyzing trace with hash -33690652, now seen corresponding path program 1 times [2024-10-13 13:35:08,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:08,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991158042] [2024-10-13 13:35:08,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:08,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:08,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:08,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:08,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:08,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991158042] [2024-10-13 13:35:08,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991158042] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:08,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976692900] [2024-10-13 13:35:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:08,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:08,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:08,642 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 13:35:08,643 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 13:35:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:08,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:35:08,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:08,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:35:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:08,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976692900] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:35:08,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:35:08,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-10-13 13:35:08,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751960718] [2024-10-13 13:35:08,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:35:08,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 13:35:08,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:08,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 13:35:08,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:35:08,793 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-13 13:35:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:08,867 INFO L93 Difference]: Finished difference Result 187 states and 192 transitions. [2024-10-13 13:35:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 13:35:08,868 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 48 [2024-10-13 13:35:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:08,869 INFO L225 Difference]: With dead ends: 187 [2024-10-13 13:35:08,869 INFO L226 Difference]: Without dead ends: 171 [2024-10-13 13:35:08,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-13 13:35:08,869 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 73 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:08,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 456 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:35:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-13 13:35:08,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 148. [2024-10-13 13:35:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2439024390243902) internal successors, (153), 136 states have internal predecessors, (153), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-13 13:35:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 165 transitions. [2024-10-13 13:35:08,876 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 165 transitions. Word has length 48 [2024-10-13 13:35:08,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:08,876 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 165 transitions. [2024-10-13 13:35:08,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 13 states have internal predecessors, (78), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-13 13:35:08,876 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 165 transitions. [2024-10-13 13:35:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-13 13:35:08,877 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:08,877 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:35:08,894 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 13:35:09,077 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,SelfDestructingSolverStorable20 [2024-10-13 13:35:09,078 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:09,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:09,078 INFO L85 PathProgramCache]: Analyzing trace with hash 33195633, now seen corresponding path program 1 times [2024-10-13 13:35:09,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:09,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757703550] [2024-10-13 13:35:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:09,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 13:35:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 13:35:09,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:09,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757703550] [2024-10-13 13:35:09,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757703550] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:09,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957813677] [2024-10-13 13:35:09,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:09,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:09,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:09,123 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 13:35:09,124 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 13:35:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 13:35:09,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 13:35:09,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:35:09,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957813677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:09,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:35:09,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-13 13:35:09,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113740541] [2024-10-13 13:35:09,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:09,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:35:09,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:09,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:35:09,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:35:09,205 INFO L87 Difference]: Start difference. First operand 148 states and 165 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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 13:35:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:09,220 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2024-10-13 13:35:09,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 13:35:09,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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 57 [2024-10-13 13:35:09,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:09,221 INFO L225 Difference]: With dead ends: 150 [2024-10-13 13:35:09,221 INFO L226 Difference]: Without dead ends: 149 [2024-10-13 13:35:09,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 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 13:35:09,222 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 21 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:09,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 122 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:35:09,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-13 13:35:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2024-10-13 13:35:09,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 135 states have internal predecessors, (150), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-13 13:35:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 162 transitions. [2024-10-13 13:35:09,227 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 162 transitions. Word has length 57 [2024-10-13 13:35:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:09,227 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 162 transitions. [2024-10-13 13:35:09,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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 13:35:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 162 transitions. [2024-10-13 13:35:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-13 13:35:09,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:09,227 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:35:09,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-13 13:35:09,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:09,429 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:09,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:09,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1029064698, now seen corresponding path program 1 times [2024-10-13 13:35:09,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:09,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598047787] [2024-10-13 13:35:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:09,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 13:35:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 13:35:09,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:35:09,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598047787] [2024-10-13 13:35:09,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598047787] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:09,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68673543] [2024-10-13 13:35:09,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:09,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:09,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:09,473 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 13:35:09,475 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 13:35:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:09,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 13:35:09,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 13:35:09,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:35:09,589 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 13:35:09,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68673543] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:35:09,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:35:09,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-13 13:35:09,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633860680] [2024-10-13 13:35:09,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:35:09,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:35:09,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:35:09,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:35:09,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:35:09,592 INFO L87 Difference]: Start difference. First operand 147 states and 162 transitions. Second operand has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-13 13:35:09,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:09,619 INFO L93 Difference]: Finished difference Result 173 states and 182 transitions. [2024-10-13 13:35:09,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 13:35:09,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 58 [2024-10-13 13:35:09,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:09,620 INFO L225 Difference]: With dead ends: 173 [2024-10-13 13:35:09,620 INFO L226 Difference]: Without dead ends: 172 [2024-10-13 13:35:09,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:35:09,621 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 24 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:09,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 200 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:35:09,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-13 13:35:09,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 159. [2024-10-13 13:35:09,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 146 states have internal predecessors, (165), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-13 13:35:09,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 179 transitions. [2024-10-13 13:35:09,631 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 179 transitions. Word has length 58 [2024-10-13 13:35:09,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:09,631 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 179 transitions. [2024-10-13 13:35:09,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 7 states have internal predecessors, (97), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-13 13:35:09,631 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 179 transitions. [2024-10-13 13:35:09,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-13 13:35:09,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:09,632 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 13:35:09,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-13 13:35:09,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:35:09,833 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:09,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:09,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1349924572, now seen corresponding path program 1 times [2024-10-13 13:35:09,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:35:09,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066675819] [2024-10-13 13:35:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:09,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:35:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:10,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:35:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:10,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:35:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:10,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 13:35:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 13:35:10,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 13:35:10,039 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig$NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:222) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-10-13 13:35:10,044 INFO L158 Benchmark]: Toolchain (without parser) took 12990.21ms. Allocated memory was 167.8MB in the beginning and 268.4MB in the end (delta: 100.7MB). Free memory was 95.6MB in the beginning and 126.5MB in the end (delta: -30.9MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2024-10-13 13:35:10,045 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 167.8MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 13:35:10,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.64ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 135.3MB in the end (delta: -39.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-10-13 13:35:10,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.08ms. Allocated memory is still 167.8MB. Free memory was 135.3MB in the beginning and 133.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 13:35:10,045 INFO L158 Benchmark]: Boogie Preprocessor took 36.89ms. Allocated memory is still 167.8MB. Free memory was 133.6MB in the beginning and 131.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 13:35:10,045 INFO L158 Benchmark]: RCFGBuilder took 318.09ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 115.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-13 13:35:10,045 INFO L158 Benchmark]: TraceAbstraction took 12361.32ms. Allocated memory was 167.8MB in the beginning and 268.4MB in the end (delta: 100.7MB). Free memory was 114.8MB in the beginning and 126.5MB in the end (delta: -11.7MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. [2024-10-13 13:35:10,046 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 167.8MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.64ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 135.3MB in the end (delta: -39.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.08ms. Allocated memory is still 167.8MB. Free memory was 135.3MB in the beginning and 133.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.89ms. Allocated memory is still 167.8MB. Free memory was 133.6MB in the beginning and 131.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.09ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 115.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12361.32ms. Allocated memory was 167.8MB in the beginning and 268.4MB in the end (delta: 100.7MB). Free memory was 114.8MB in the beginning and 126.5MB in the end (delta: -11.7MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NestedTraceCheckException: UNKNOWN during nested interpolation. I don't know how to continue: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:388) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-13 13:35:10,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/geo1-ll2_unwindbound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.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 358d950fcb60363ca711e5ee684e998bf5a6b6b14c5043f9c788a7a76c08fd00 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:35:11,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:35:11,970 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-10-13 13:35:11,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:35:11,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:35:11,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:35:11,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:35:11,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:35:11,998 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:35:11,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:35:11,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:35:11,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:35:12,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:35:12,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:35:12,002 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:35:12,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:35:12,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:35:12,002 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 13:35:12,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 13:35:12,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:35:12,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:35:12,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:35:12,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:35:12,005 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 13:35:12,006 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 13:35:12,006 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:35:12,006 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:35:12,006 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 13:35:12,006 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:35:12,006 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 13:35:12,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:35:12,007 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:35:12,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:35:12,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:35:12,007 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:35:12,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:35:12,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:35:12,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:35:12,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:35:12,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:35:12,008 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 13:35:12,010 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 13:35:12,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:35:12,010 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:35:12,010 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:35:12,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:35:12,011 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 13:35:12,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 358d950fcb60363ca711e5ee684e998bf5a6b6b14c5043f9c788a7a76c08fd00 [2024-10-13 13:35:12,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:35:12,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:35:12,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:35:12,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:35:12,283 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:35:12,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound20.c [2024-10-13 13:35:13,618 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:35:13,808 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:35:13,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-ll2_unwindbound20.c [2024-10-13 13:35:13,819 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a05d7e62d/cdd6a302492f4882823d6dcee91a0fbd/FLAG4093a3f08 [2024-10-13 13:35:13,831 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a05d7e62d/cdd6a302492f4882823d6dcee91a0fbd [2024-10-13 13:35:13,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:35:13,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:35:13,837 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:35:13,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:35:13,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:35:13,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:35:13" (1/1) ... [2024-10-13 13:35:13,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed76ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:13, skipping insertion in model container [2024-10-13 13:35:13,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:35:13" (1/1) ... [2024-10-13 13:35:13,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:35:14,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:35:14,023 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:35:14,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:35:14,058 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:35:14,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14 WrapperNode [2024-10-13 13:35:14,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:35:14,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:35:14,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:35:14,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:35:14,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,102 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-10-13 13:35:14,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:35:14,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:35:14,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:35:14,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:35:14,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,117 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,132 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 13:35:14,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:35:14,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:35:14,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:35:14,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:35:14,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (1/1) ... [2024-10-13 13:35:14,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:35:14,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:35:14,183 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 13:35:14,185 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 13:35:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 13:35:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 13:35:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 13:35:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 13:35:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:35:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:35:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 13:35:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 13:35:14,305 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:35:14,308 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:35:18,312 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-10-13 13:35:18,313 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:35:18,345 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:35:18,345 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 13:35:18,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:35:18 BoogieIcfgContainer [2024-10-13 13:35:18,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:35:18,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:35:18,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:35:18,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:35:18,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:35:13" (1/3) ... [2024-10-13 13:35:18,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414dd295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:35:18, skipping insertion in model container [2024-10-13 13:35:18,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:35:14" (2/3) ... [2024-10-13 13:35:18,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414dd295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:35:18, skipping insertion in model container [2024-10-13 13:35:18,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:35:18" (3/3) ... [2024-10-13 13:35:18,353 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll2_unwindbound20.c [2024-10-13 13:35:18,364 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:35:18,365 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-13 13:35:18,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:35:18,430 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;@1cfe57e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:35:18,431 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-13 13:35:18,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-13 13:35:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-13 13:35:18,443 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:18,444 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:35:18,444 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:18,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:18,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2005083564, now seen corresponding path program 1 times [2024-10-13 13:35:18,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 13:35:18,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051922558] [2024-10-13 13:35:18,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:18,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 13:35:18,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 13:35:18,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 13:35:18,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-13 13:35:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:18,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-13 13:35:18,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:18,532 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:35:18,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 13:35:18,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051922558] [2024-10-13 13:35:18,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051922558] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:18,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:35:18,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 13:35:18,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825546674] [2024-10-13 13:35:18,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:18,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 13:35:18,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 13:35:18,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 13:35:18,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:35:18,553 INFO L87 Difference]: Start difference. First operand has 71 states, 38 states have (on average 1.8157894736842106) internal successors, (69), 64 states have internal predecessors, (69), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 1 states have (on average 7.0) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:35:18,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:18,576 INFO L93 Difference]: Finished difference Result 134 states and 155 transitions. [2024-10-13 13:35:18,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 13:35:18,579 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 7.0) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-13 13:35:18,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:18,583 INFO L225 Difference]: With dead ends: 134 [2024-10-13 13:35:18,584 INFO L226 Difference]: Without dead ends: 62 [2024-10-13 13:35:18,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 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 13:35:18,590 INFO L432 NwaCegarLoop]: 66 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, 66 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 13:35:18,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:35:18,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-13 13:35:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-13 13:35:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 56 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2024-10-13 13:35:18,623 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 14 [2024-10-13 13:35:18,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:18,624 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2024-10-13 13:35:18,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 7.0) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:35:18,624 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2024-10-13 13:35:18,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-13 13:35:18,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:18,625 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:35:18,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-13 13:35:18,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 13:35:18,826 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:18,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:18,827 INFO L85 PathProgramCache]: Analyzing trace with hash 5124504, now seen corresponding path program 1 times [2024-10-13 13:35:18,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 13:35:18,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757610125] [2024-10-13 13:35:18,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:18,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 13:35:18,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 13:35:18,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 13:35:18,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-13 13:35:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:18,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 13:35:18,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:18,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 13:35:18,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 13:35:18,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757610125] [2024-10-13 13:35:18,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757610125] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:35:18,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:35:18,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:35:18,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310601202] [2024-10-13 13:35:18,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:18,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:35:18,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 13:35:18,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:35:18,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:35:18,941 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:35:18,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:35:18,987 INFO L93 Difference]: Finished difference Result 81 states and 83 transitions. [2024-10-13 13:35:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:35:18,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-10-13 13:35:18,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:35:18,989 INFO L225 Difference]: With dead ends: 81 [2024-10-13 13:35:18,989 INFO L226 Difference]: Without dead ends: 66 [2024-10-13 13:35:18,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 13:35:18,990 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 3 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:35:18,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 168 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:35:18,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-13 13:35:18,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-10-13 13:35:18,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.5121951219512195) internal successors, (62), 60 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:35:18,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2024-10-13 13:35:18,996 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 15 [2024-10-13 13:35:18,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:35:18,997 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2024-10-13 13:35:18,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:35:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2024-10-13 13:35:18,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-13 13:35:18,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:35:18,998 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:35:19,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-13 13:35:19,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 13:35:19,201 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:35:19,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:35:19,202 INFO L85 PathProgramCache]: Analyzing trace with hash 629682618, now seen corresponding path program 1 times [2024-10-13 13:35:19,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 13:35:19,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237729814] [2024-10-13 13:35:19,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:35:19,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 13:35:19,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 13:35:19,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 13:35:19,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-13 13:35:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:35:19,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:35:19,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:35:19,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:35:19,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:35:24,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:35:24,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 13:35:24,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237729814] [2024-10-13 13:35:24,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [237729814] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 13:35:24,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:35:24,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-13 13:35:24,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304503921] [2024-10-13 13:35:24,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:35:24,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:35:24,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 13:35:24,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:35:24,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:35:24,643 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:35:26,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:35:31,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:35:35,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:35:39,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:35:44,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:35:48,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:35:49,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:35:56,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:35:58,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:36:04,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:36:07,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:36:14,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:36:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:36:14,611 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2024-10-13 13:36:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 13:36:14,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-10-13 13:36:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:36:14,648 INFO L225 Difference]: With dead ends: 72 [2024-10-13 13:36:14,649 INFO L226 Difference]: Without dead ends: 70 [2024-10-13 13:36:14,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:36:14,650 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 19 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2024-10-13 13:36:14,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 53 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 5 Unknown, 0 Unchecked, 49.9s Time] [2024-10-13 13:36:14,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-13 13:36:14,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2024-10-13 13:36:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 60 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 13:36:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2024-10-13 13:36:14,655 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 17 [2024-10-13 13:36:14,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:36:14,656 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2024-10-13 13:36:14,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:36:14,656 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2024-10-13 13:36:14,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-13 13:36:14,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:36:14,656 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:36:14,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-13 13:36:14,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 13:36:14,858 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-13 13:36:14,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:36:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1954675269, now seen corresponding path program 1 times [2024-10-13 13:36:14,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 13:36:14,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190647127] [2024-10-13 13:36:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:36:14,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 13:36:14,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 13:36:14,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-13 13:36:14,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-13 13:36:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:36:14,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 13:36:14,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:36:15,402 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 13:36:15,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:36:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 13:36:20,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 13:36:20,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190647127] [2024-10-13 13:36:20,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190647127] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 13:36:20,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 13:36:20,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-13 13:36:20,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930608611] [2024-10-13 13:36:20,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:36:20,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 13:36:20,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 13:36:20,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 13:36:20,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:36:20,798 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 13:36:24,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:36:34,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:36:39,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-13 13:36:41,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []