./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-2.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 76fcbcb67039c0a78cfe1723cb1895d2882967fdc056ee8f9638db41d873b34f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:12:42,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:12:42,890 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-11 20:12:42,896 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:12:42,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:12:42,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:12:42,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:12:42,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:12:42,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:12:42,930 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:12:42,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:12:42,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:12:42,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:12:42,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:12:42,933 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:12:42,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:12:42,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:12:42,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:12:42,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:12:42,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:12:42,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:12:42,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:12:42,938 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:12:42,938 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:12:42,938 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:12:42,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:12:42,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:12:42,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:12:42,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:12:42,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:12:42,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:12:42,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:12:42,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:12:42,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:12:42,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:12:42,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:12:42,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:12:42,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:12:42,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:12:42,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:12:42,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:12:42,943 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76fcbcb67039c0a78cfe1723cb1895d2882967fdc056ee8f9638db41d873b34f [2024-10-11 20:12:43,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:12:43,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:12:43,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:12:43,222 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:12:43,222 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:12:43,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-2.c [2024-10-11 20:12:44,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:12:44,823 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:12:44,824 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-2.c [2024-10-11 20:12:44,831 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/084ac5fd5/9c1df67f5c0f4a71a094626a2e16bef1/FLAGf297a6569 [2024-10-11 20:12:44,847 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/084ac5fd5/9c1df67f5c0f4a71a094626a2e16bef1 [2024-10-11 20:12:44,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:12:44,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:12:44,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:12:44,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:12:44,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:12:44,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:12:44" (1/1) ... [2024-10-11 20:12:44,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e5ac8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:44, skipping insertion in model container [2024-10-11 20:12:44,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:12:44" (1/1) ... [2024-10-11 20:12:44,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:12:45,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:12:45,044 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:12:45,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:12:45,064 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:12:45,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45 WrapperNode [2024-10-11 20:12:45,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:12:45,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:12:45,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:12:45,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:12:45,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,086 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2024-10-11 20:12:45,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:12:45,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:12:45,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:12:45,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:12:45,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,100 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-11 20:12:45,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,100 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,105 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:12:45,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:12:45,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:12:45,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:12:45,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (1/1) ... [2024-10-11 20:12:45,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:12:45,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:45,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:12:45,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:12:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:12:45,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:12:45,289 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:12:45,291 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:12:45,364 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-11 20:12:45,364 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:12:45,392 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:12:45,394 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 20:12:45,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:12:45 BoogieIcfgContainer [2024-10-11 20:12:45,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:12:45,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:12:45,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:12:45,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:12:45,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:12:44" (1/3) ... [2024-10-11 20:12:45,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7622d18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:12:45, skipping insertion in model container [2024-10-11 20:12:45,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:45" (2/3) ... [2024-10-11 20:12:45,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7622d18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:12:45, skipping insertion in model container [2024-10-11 20:12:45,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:12:45" (3/3) ... [2024-10-11 20:12:45,408 INFO L112 eAbstractionObserver]: Analyzing ICFG Cairo_step2-2.c [2024-10-11 20:12:45,430 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:12:45,430 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 20:12:45,503 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:12:45,510 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;@1d162441, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:12:45,512 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 20:12:45,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:45,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-11 20:12:45,524 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:45,525 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-11 20:12:45,526 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:12:45,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:45,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1822505, now seen corresponding path program 1 times [2024-10-11 20:12:45,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:45,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005097079] [2024-10-11 20:12:45,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:45,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:45,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:45,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005097079] [2024-10-11 20:12:45,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005097079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:12:45,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:12:45,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:12:45,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969350221] [2024-10-11 20:12:45,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:12:45,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:12:45,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:45,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:12:45,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:12:45,758 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:45,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:45,803 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2024-10-11 20:12:45,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:12:45,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-11 20:12:45,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:45,812 INFO L225 Difference]: With dead ends: 15 [2024-10-11 20:12:45,813 INFO L226 Difference]: Without dead ends: 10 [2024-10-11 20:12:45,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:12:45,819 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4 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 [2024-10-11 20:12:45,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:12:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-10-11 20:12:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-10-11 20:12:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:45,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-10-11 20:12:45,856 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2024-10-11 20:12:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:45,857 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-10-11 20:12:45,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:45,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-10-11 20:12:45,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 20:12:45,858 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:45,858 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 20:12:45,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:12:45,859 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:12:45,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:45,860 INFO L85 PathProgramCache]: Analyzing trace with hash 56497703, now seen corresponding path program 1 times [2024-10-11 20:12:45,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:45,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914586522] [2024-10-11 20:12:45,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:45,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:45,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:45,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914586522] [2024-10-11 20:12:45,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914586522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:12:45,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:12:45,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 20:12:45,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903991456] [2024-10-11 20:12:45,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:12:45,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:12:45,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:45,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:12:45,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:12:45,896 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:45,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:45,917 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2024-10-11 20:12:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:12:45,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 20:12:45,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:45,919 INFO L225 Difference]: With dead ends: 9 [2024-10-11 20:12:45,919 INFO L226 Difference]: Without dead ends: 8 [2024-10-11 20:12:45,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:12:45,921 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:45,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:12:45,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-10-11 20:12:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-10-11 20:12:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-10-11 20:12:45,926 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2024-10-11 20:12:45,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:45,926 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-10-11 20:12:45,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:45,926 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-10-11 20:12:45,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 20:12:45,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:45,927 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-11 20:12:45,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:12:45,928 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:12:45,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:45,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1540280855, now seen corresponding path program 1 times [2024-10-11 20:12:45,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:45,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304809851] [2024-10-11 20:12:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:45,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:45,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:45,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:45,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304809851] [2024-10-11 20:12:45,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304809851] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:45,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392779622] [2024-10-11 20:12:45,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:45,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:45,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:46,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:46,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:12:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:46,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:12:46,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:46,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:12:46,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:46,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392779622] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:12:46,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:12:46,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-11 20:12:46,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834711327] [2024-10-11 20:12:46,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:12:46,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:12:46,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:46,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:12:46,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:12:46,173 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:46,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:46,234 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2024-10-11 20:12:46,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:12:46,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-11 20:12:46,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:46,236 INFO L225 Difference]: With dead ends: 18 [2024-10-11 20:12:46,236 INFO L226 Difference]: Without dead ends: 17 [2024-10-11 20:12:46,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:12:46,237 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:46,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:12:46,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-11 20:12:46,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-11 20:12:46,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:46,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-10-11 20:12:46,250 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2024-10-11 20:12:46,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:46,250 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-10-11 20:12:46,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:46,251 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-10-11 20:12:46,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 20:12:46,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:46,252 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1] [2024-10-11 20:12:46,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 20:12:46,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:46,453 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:12:46,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:46,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1073405737, now seen corresponding path program 2 times [2024-10-11 20:12:46,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:46,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262090221] [2024-10-11 20:12:46,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:46,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:46,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:46,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262090221] [2024-10-11 20:12:46,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262090221] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:46,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178097125] [2024-10-11 20:12:46,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:12:46,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:46,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:46,587 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:46,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:12:46,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:12:46,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:12:46,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:12:46,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:46,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:12:46,852 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:46,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178097125] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:12:46,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:12:46,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-11 20:12:46,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421433847] [2024-10-11 20:12:46,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:12:46,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 20:12:46,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:46,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 20:12:46,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:12:46,857 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:46,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:46,930 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2024-10-11 20:12:46,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 20:12:46,931 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-11 20:12:46,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:46,932 INFO L225 Difference]: With dead ends: 36 [2024-10-11 20:12:46,932 INFO L226 Difference]: Without dead ends: 35 [2024-10-11 20:12:46,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:12:46,934 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:46,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:12:46,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-10-11 20:12:46,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-10-11 20:12:46,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:46,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2024-10-11 20:12:46,949 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 16 [2024-10-11 20:12:46,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:46,950 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2024-10-11 20:12:46,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:46,950 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2024-10-11 20:12:46,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 20:12:46,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:46,951 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1] [2024-10-11 20:12:46,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 20:12:47,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:47,152 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:12:47,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:47,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2086897879, now seen corresponding path program 3 times [2024-10-11 20:12:47,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:47,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440208201] [2024-10-11 20:12:47,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:47,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:47,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:47,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440208201] [2024-10-11 20:12:47,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440208201] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:47,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879313976] [2024-10-11 20:12:47,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:12:47,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:47,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:47,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:47,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:12:47,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-11 20:12:47,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:12:47,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 20:12:47,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:47,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:12:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:47,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879313976] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:12:47,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:12:47,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-10-11 20:12:47,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456849300] [2024-10-11 20:12:47,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:12:47,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 20:12:47,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:47,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 20:12:47,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-10-11 20:12:47,885 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:47,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:47,983 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2024-10-11 20:12:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 20:12:47,983 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-10-11 20:12:47,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:47,985 INFO L225 Difference]: With dead ends: 72 [2024-10-11 20:12:47,985 INFO L226 Difference]: Without dead ends: 71 [2024-10-11 20:12:47,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-10-11 20:12:47,987 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:47,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:12:47,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-11 20:12:47,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-10-11 20:12:47,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:47,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2024-10-11 20:12:47,997 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 34 [2024-10-11 20:12:47,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:47,998 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2024-10-11 20:12:47,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:47,998 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2024-10-11 20:12:47,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 20:12:48,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:48,000 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 1, 1, 1] [2024-10-11 20:12:48,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 20:12:48,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:48,202 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:12:48,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:48,203 INFO L85 PathProgramCache]: Analyzing trace with hash 398305065, now seen corresponding path program 4 times [2024-10-11 20:12:48,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:48,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986189292] [2024-10-11 20:12:48,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:48,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:48,896 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:48,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:48,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986189292] [2024-10-11 20:12:48,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986189292] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:48,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597357856] [2024-10-11 20:12:48,897 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:12:48,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:48,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:48,899 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:48,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:12:48,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:12:48,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:12:48,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-11 20:12:48,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:49,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:12:49,944 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:49,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597357856] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:12:49,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:12:49,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-10-11 20:12:49,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099102351] [2024-10-11 20:12:49,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:12:49,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-11 20:12:49,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:49,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-11 20:12:49,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-10-11 20:12:49,949 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:50,167 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2024-10-11 20:12:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-11 20:12:50,168 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-10-11 20:12:50,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:50,170 INFO L225 Difference]: With dead ends: 144 [2024-10-11 20:12:50,170 INFO L226 Difference]: Without dead ends: 143 [2024-10-11 20:12:50,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 115 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-10-11 20:12:50,172 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:50,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:12:50,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-11 20:12:50,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-10-11 20:12:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 142 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:50,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2024-10-11 20:12:50,185 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 70 [2024-10-11 20:12:50,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:50,185 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2024-10-11 20:12:50,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:50,185 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2024-10-11 20:12:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-11 20:12:50,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:50,188 INFO L215 NwaCegarLoop]: trace histogram [47, 46, 46, 1, 1, 1] [2024-10-11 20:12:50,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 20:12:50,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 20:12:50,393 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:12:50,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:50,394 INFO L85 PathProgramCache]: Analyzing trace with hash -42465495, now seen corresponding path program 5 times [2024-10-11 20:12:50,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:50,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196319967] [2024-10-11 20:12:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:52,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:52,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:52,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196319967] [2024-10-11 20:12:52,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196319967] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:52,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552512580] [2024-10-11 20:12:52,210 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:12:52,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:52,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:52,214 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:52,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 20:12:52,311 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-10-11 20:12:52,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:12:52,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-11 20:12:52,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:52,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:12:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:55,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552512580] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:12:55,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:12:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-10-11 20:12:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425562964] [2024-10-11 20:12:55,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:12:55,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-10-11 20:12:55,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:55,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-10-11 20:12:55,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-10-11 20:12:55,548 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:56,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:56,009 INFO L93 Difference]: Finished difference Result 288 states and 335 transitions. [2024-10-11 20:12:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-10-11 20:12:56,010 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-11 20:12:56,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:56,015 INFO L225 Difference]: With dead ends: 288 [2024-10-11 20:12:56,018 INFO L226 Difference]: Without dead ends: 287 [2024-10-11 20:12:56,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-10-11 20:12:56,022 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:56,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 20:12:56,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-10-11 20:12:56,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-10-11 20:12:56,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.0034965034965035) internal successors, (287), 286 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:56,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 287 transitions. [2024-10-11 20:12:56,051 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 287 transitions. Word has length 142 [2024-10-11 20:12:56,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:56,052 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 287 transitions. [2024-10-11 20:12:56,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:56,052 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 287 transitions. [2024-10-11 20:12:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-10-11 20:12:56,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:56,056 INFO L215 NwaCegarLoop]: trace histogram [95, 94, 94, 1, 1, 1] [2024-10-11 20:12:56,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 20:12:56,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:56,258 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:12:56,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:56,258 INFO L85 PathProgramCache]: Analyzing trace with hash 248301353, now seen corresponding path program 6 times [2024-10-11 20:12:56,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:56,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298724420] [2024-10-11 20:12:56,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:56,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:01,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:01,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298724420] [2024-10-11 20:13:01,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298724420] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:13:01,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419241090] [2024-10-11 20:13:01,333 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:13:01,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:01,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:01,335 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:13:01,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 20:13:01,515 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-10-11 20:13:01,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:13:01,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-10-11 20:13:01,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:13:01,921 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:01,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:13:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:11,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419241090] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:13:11,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:13:11,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-10-11 20:13:11,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122494065] [2024-10-11 20:13:11,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:13:11,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-10-11 20:13:11,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:11,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-10-11 20:13:11,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-10-11 20:13:11,323 INFO L87 Difference]: Start difference. First operand 287 states and 287 transitions. Second operand has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:12,405 INFO L93 Difference]: Finished difference Result 576 states and 671 transitions. [2024-10-11 20:13:12,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-10-11 20:13:12,406 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2024-10-11 20:13:12,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:12,408 INFO L225 Difference]: With dead ends: 576 [2024-10-11 20:13:12,408 INFO L226 Difference]: Without dead ends: 575 [2024-10-11 20:13:12,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 475 SyntacticMatches, 1 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-10-11 20:13:12,411 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:12,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 20:13:12,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-10-11 20:13:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2024-10-11 20:13:12,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 1.0017421602787457) internal successors, (575), 574 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:12,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 575 transitions. [2024-10-11 20:13:12,451 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 575 transitions. Word has length 286 [2024-10-11 20:13:12,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:12,452 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 575 transitions. [2024-10-11 20:13:12,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:12,453 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 575 transitions. [2024-10-11 20:13:12,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-10-11 20:13:12,468 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:12,468 INFO L215 NwaCegarLoop]: trace histogram [191, 190, 190, 1, 1, 1] [2024-10-11 20:13:12,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 20:13:12,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 20:13:12,669 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:12,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:12,670 INFO L85 PathProgramCache]: Analyzing trace with hash -923384023, now seen corresponding path program 7 times [2024-10-11 20:13:12,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:12,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829639538] [2024-10-11 20:13:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:12,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:31,833 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:31,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:31,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829639538] [2024-10-11 20:13:31,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829639538] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:13:31,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614002198] [2024-10-11 20:13:31,834 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:13:31,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:31,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:31,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:13:31,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 20:13:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:31,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-10-11 20:13:31,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:13:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:32,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:09,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614002198] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:09,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:09,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2024-10-11 20:14:09,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599667022] [2024-10-11 20:14:09,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:09,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-10-11 20:14:09,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:09,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-10-11 20:14:09,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2024-10-11 20:14:09,434 INFO L87 Difference]: Start difference. First operand 575 states and 575 transitions. Second operand has 384 states, 383 states have (on average 2.9947780678851177) internal successors, (1147), 384 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)