./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7950877d732f4800002d6a797590b13f630fa3c613f928d7858c74ba3c97d345 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 13:44:06,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 13:44:06,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 13:44:06,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 13:44:06,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 13:44:06,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 13:44:06,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 13:44:06,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 13:44:06,648 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 13:44:06,650 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 13:44:06,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 13:44:06,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 13:44:06,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 13:44:06,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 13:44:06,651 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 13:44:06,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 13:44:06,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 13:44:06,654 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 13:44:06,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 13:44:06,654 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 13:44:06,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 13:44:06,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 13:44:06,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 13:44:06,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 13:44:06,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 13:44:06,656 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 13:44:06,657 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 13:44:06,657 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 13:44:06,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 13:44:06,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 13:44:06,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 13:44:06,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 13:44:06,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 13:44:06,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 13:44:06,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:44:06,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 13:44:06,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 13:44:06,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 13:44:06,662 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 13:44:06,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 13:44:06,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 13:44:06,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 13:44:06,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 13:44:06,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 13:44:06,665 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7950877d732f4800002d6a797590b13f630fa3c613f928d7858c74ba3c97d345 [2024-10-13 13:44:06,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 13:44:06,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 13:44:06,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 13:44:06,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 13:44:06,992 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 13:44:06,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound2.c [2024-10-13 13:44:08,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 13:44:08,703 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 13:44:08,704 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound2.c [2024-10-13 13:44:08,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b868661c1/98687ab08204466381a018c29d7539da/FLAGffffd2bf3 [2024-10-13 13:44:08,727 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b868661c1/98687ab08204466381a018c29d7539da [2024-10-13 13:44:08,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 13:44:08,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 13:44:08,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 13:44:08,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 13:44:08,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 13:44:08,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:44:08" (1/1) ... [2024-10-13 13:44:08,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb8d558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:08, skipping insertion in model container [2024-10-13 13:44:08,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:44:08" (1/1) ... [2024-10-13 13:44:08,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 13:44:08,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:44:08,992 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 13:44:09,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 13:44:09,031 INFO L204 MainTranslator]: Completed translation [2024-10-13 13:44:09,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09 WrapperNode [2024-10-13 13:44:09,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 13:44:09,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 13:44:09,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 13:44:09,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 13:44:09,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,069 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 90 [2024-10-13 13:44:09,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 13:44:09,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 13:44:09,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 13:44:09,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 13:44:09,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,084 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,098 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-10-13 13:44:09,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 13:44:09,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 13:44:09,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 13:44:09,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 13:44:09,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (1/1) ... [2024-10-13 13:44:09,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 13:44:09,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:44:09,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 13:44:09,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 13:44:09,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 13:44:09,227 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 13:44:09,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 13:44:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 13:44:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 13:44:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 13:44:09,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 13:44:09,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 13:44:09,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 13:44:09,344 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 13:44:09,355 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 13:44:09,714 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-13 13:44:09,715 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 13:44:09,746 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 13:44:09,747 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-13 13:44:09,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:44:09 BoogieIcfgContainer [2024-10-13 13:44:09,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 13:44:09,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 13:44:09,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 13:44:09,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 13:44:09,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:44:08" (1/3) ... [2024-10-13 13:44:09,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efee4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:44:09, skipping insertion in model container [2024-10-13 13:44:09,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:44:09" (2/3) ... [2024-10-13 13:44:09,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efee4fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:44:09, skipping insertion in model container [2024-10-13 13:44:09,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:44:09" (3/3) ... [2024-10-13 13:44:09,759 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm1_unwindbound2.c [2024-10-13 13:44:09,776 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 13:44:09,776 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-13 13:44:09,861 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 13:44:09,872 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;@355322ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 13:44:09,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-13 13:44:09,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 30 states have internal predecessors, (41), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-13 13:44:09,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-13 13:44:09,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:09,888 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:09,889 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:09,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:09,895 INFO L85 PathProgramCache]: Analyzing trace with hash 529971304, now seen corresponding path program 1 times [2024-10-13 13:44:09,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:09,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123363332] [2024-10-13 13:44:09,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:09,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:44:10,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:10,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123363332] [2024-10-13 13:44:10,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123363332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:44:10,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:44:10,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 13:44:10,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078288089] [2024-10-13 13:44:10,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:44:10,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 13:44:10,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:10,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 13:44:10,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:44:10,222 INFO L87 Difference]: Start difference. First operand has 42 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 30 states have internal predecessors, (41), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:44:10,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:10,252 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2024-10-13 13:44:10,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 13:44:10,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2024-10-13 13:44:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:10,262 INFO L225 Difference]: With dead ends: 82 [2024-10-13 13:44:10,262 INFO L226 Difference]: Without dead ends: 38 [2024-10-13 13:44:10,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 13:44:10,271 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:10,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:44:10,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-10-13 13:44:10,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-10-13 13:44:10,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.434782608695652) internal successors, (33), 28 states have internal predecessors, (33), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-13 13:44:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2024-10-13 13:44:10,313 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 24 [2024-10-13 13:44:10,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:10,314 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2024-10-13 13:44:10,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-13 13:44:10,314 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2024-10-13 13:44:10,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-13 13:44:10,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:10,316 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:10,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 13:44:10,317 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:10,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:10,318 INFO L85 PathProgramCache]: Analyzing trace with hash 689927656, now seen corresponding path program 1 times [2024-10-13 13:44:10,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:10,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877069797] [2024-10-13 13:44:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:10,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:44:10,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:10,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877069797] [2024-10-13 13:44:10,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877069797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:44:10,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:44:10,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 13:44:10,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906779370] [2024-10-13 13:44:10,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:44:10,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 13:44:10,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:10,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 13:44:10,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 13:44:10,595 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-13 13:44:10,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:10,663 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2024-10-13 13:44:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:44:10,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2024-10-13 13:44:10,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:10,665 INFO L225 Difference]: With dead ends: 44 [2024-10-13 13:44:10,665 INFO L226 Difference]: Without dead ends: 42 [2024-10-13 13:44:10,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:44:10,668 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:10,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 109 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:44:10,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-10-13 13:44:10,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2024-10-13 13:44:10,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 31 states have internal predecessors, (36), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-13 13:44:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2024-10-13 13:44:10,681 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 24 [2024-10-13 13:44:10,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:10,682 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2024-10-13 13:44:10,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-13 13:44:10,683 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2024-10-13 13:44:10,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-13 13:44:10,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:10,684 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:10,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 13:44:10,684 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:10,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:10,685 INFO L85 PathProgramCache]: Analyzing trace with hash -254797239, now seen corresponding path program 1 times [2024-10-13 13:44:10,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:10,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484025467] [2024-10-13 13:44:10,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:10,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:44:10,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:10,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484025467] [2024-10-13 13:44:10,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484025467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:44:10,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:44:10,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 13:44:10,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861745970] [2024-10-13 13:44:10,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:44:10,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:44:10,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:10,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:44:10,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:44:10,981 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-13 13:44:11,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:11,219 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2024-10-13 13:44:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 13:44:11,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2024-10-13 13:44:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:11,221 INFO L225 Difference]: With dead ends: 61 [2024-10-13 13:44:11,222 INFO L226 Difference]: Without dead ends: 60 [2024-10-13 13:44:11,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:44:11,223 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 28 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:11,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 172 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:44:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-13 13:44:11,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2024-10-13 13:44:11,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 41 states have internal predecessors, (49), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-13 13:44:11,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2024-10-13 13:44:11,242 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 34 [2024-10-13 13:44:11,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:11,244 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2024-10-13 13:44:11,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-13 13:44:11,244 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2024-10-13 13:44:11,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-13 13:44:11,246 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:11,246 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:11,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 13:44:11,246 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:11,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:11,247 INFO L85 PathProgramCache]: Analyzing trace with hash 691220249, now seen corresponding path program 1 times [2024-10-13 13:44:11,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:11,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271362708] [2024-10-13 13:44:11,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:11,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:44:11,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:11,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271362708] [2024-10-13 13:44:11,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271362708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:44:11,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:44:11,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 13:44:11,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433092284] [2024-10-13 13:44:11,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:44:11,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 13:44:11,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:11,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 13:44:11,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 13:44:11,479 INFO L87 Difference]: Start difference. First operand 54 states and 67 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-13 13:44:11,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:11,603 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2024-10-13 13:44:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 13:44:11,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2024-10-13 13:44:11,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:11,606 INFO L225 Difference]: With dead ends: 90 [2024-10-13 13:44:11,606 INFO L226 Difference]: Without dead ends: 62 [2024-10-13 13:44:11,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:44:11,608 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 17 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:11,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 183 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:44:11,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-13 13:44:11,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-13 13:44:11,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.302325581395349) internal successors, (56), 48 states have internal predecessors, (56), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-13 13:44:11,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 74 transitions. [2024-10-13 13:44:11,618 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 74 transitions. Word has length 35 [2024-10-13 13:44:11,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:11,618 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 74 transitions. [2024-10-13 13:44:11,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-13 13:44:11,619 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 74 transitions. [2024-10-13 13:44:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-13 13:44:11,620 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:11,620 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:11,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 13:44:11,621 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:11,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:11,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1149535416, now seen corresponding path program 1 times [2024-10-13 13:44:11,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:11,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796500935] [2024-10-13 13:44:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:11,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 13:44:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:11,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:11,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796500935] [2024-10-13 13:44:11,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796500935] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:44:11,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:44:11,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 13:44:11,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141388448] [2024-10-13 13:44:11,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:44:11,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 13:44:11,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:11,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 13:44:11,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:44:11,862 INFO L87 Difference]: Start difference. First operand 62 states and 74 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:44:12,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:12,051 INFO L93 Difference]: Finished difference Result 101 states and 120 transitions. [2024-10-13 13:44:12,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 13:44:12,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 44 [2024-10-13 13:44:12,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:12,055 INFO L225 Difference]: With dead ends: 101 [2024-10-13 13:44:12,055 INFO L226 Difference]: Without dead ends: 73 [2024-10-13 13:44:12,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:44:12,057 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 46 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:12,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 211 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:44:12,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-13 13:44:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 66. [2024-10-13 13:44:12,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.297872340425532) internal successors, (61), 52 states have internal predecessors, (61), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-13 13:44:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 79 transitions. [2024-10-13 13:44:12,074 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 79 transitions. Word has length 44 [2024-10-13 13:44:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:12,075 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 79 transitions. [2024-10-13 13:44:12,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:44:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 79 transitions. [2024-10-13 13:44:12,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-13 13:44:12,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:12,076 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:12,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 13:44:12,078 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:12,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:12,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1275859616, now seen corresponding path program 1 times [2024-10-13 13:44:12,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:12,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669088244] [2024-10-13 13:44:12,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:12,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 13:44:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:12,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:12,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669088244] [2024-10-13 13:44:12,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669088244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:44:12,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:44:12,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 13:44:12,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501665181] [2024-10-13 13:44:12,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:44:12,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 13:44:12,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:12,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 13:44:12,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 13:44:12,364 INFO L87 Difference]: Start difference. First operand 66 states and 79 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:44:12,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:12,505 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2024-10-13 13:44:12,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 13:44:12,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 45 [2024-10-13 13:44:12,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:12,507 INFO L225 Difference]: With dead ends: 81 [2024-10-13 13:44:12,507 INFO L226 Difference]: Without dead ends: 80 [2024-10-13 13:44:12,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:44:12,509 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 33 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:12,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 181 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:44:12,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-13 13:44:12,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2024-10-13 13:44:12,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 59 states have internal predecessors, (69), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 13:44:12,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2024-10-13 13:44:12,519 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 45 [2024-10-13 13:44:12,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:12,519 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2024-10-13 13:44:12,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:44:12,520 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2024-10-13 13:44:12,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-13 13:44:12,521 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:12,521 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:12,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 13:44:12,521 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:12,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:12,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1275897352, now seen corresponding path program 1 times [2024-10-13 13:44:12,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:12,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982533963] [2024-10-13 13:44:12,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:12,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 13:44:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,685 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:12,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:12,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982533963] [2024-10-13 13:44:12,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982533963] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:44:12,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026466521] [2024-10-13 13:44:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:12,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:44:12,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:44:12,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:44:12,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 13:44:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:12,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 13:44:12,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:44:12,864 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:44:12,864 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:44:12,999 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:12,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026466521] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:44:13,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:44:13,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 16 [2024-10-13 13:44:13,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934470548] [2024-10-13 13:44:13,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:44:13,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 13:44:13,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:13,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 13:44:13,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-13 13:44:13,003 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand has 17 states, 16 states have (on average 3.1875) internal successors, (51), 17 states have internal predecessors, (51), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-13 13:44:13,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:13,383 INFO L93 Difference]: Finished difference Result 174 states and 209 transitions. [2024-10-13 13:44:13,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 13:44:13,384 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.1875) internal successors, (51), 17 states have internal predecessors, (51), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 45 [2024-10-13 13:44:13,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:13,386 INFO L225 Difference]: With dead ends: 174 [2024-10-13 13:44:13,386 INFO L226 Difference]: Without dead ends: 173 [2024-10-13 13:44:13,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2024-10-13 13:44:13,388 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 124 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:13,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 269 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 13:44:13,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-13 13:44:13,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 145. [2024-10-13 13:44:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 116 states have internal predecessors, (142), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-13 13:44:13,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 174 transitions. [2024-10-13 13:44:13,404 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 174 transitions. Word has length 45 [2024-10-13 13:44:13,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:13,404 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 174 transitions. [2024-10-13 13:44:13,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.1875) internal successors, (51), 17 states have internal predecessors, (51), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-13 13:44:13,405 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 174 transitions. [2024-10-13 13:44:13,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-13 13:44:13,415 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:13,415 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:13,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 13:44:13,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:44:13,617 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:13,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:13,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1326660547, now seen corresponding path program 1 times [2024-10-13 13:44:13,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:13,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423931333] [2024-10-13 13:44:13,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:13,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 13:44:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,695 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:13,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:13,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423931333] [2024-10-13 13:44:13,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423931333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 13:44:13,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 13:44:13,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 13:44:13,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624106144] [2024-10-13 13:44:13,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:44:13,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 13:44:13,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:13,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 13:44:13,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 13:44:13,697 INFO L87 Difference]: Start difference. First operand 145 states and 174 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-13 13:44:13,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:13,736 INFO L93 Difference]: Finished difference Result 152 states and 180 transitions. [2024-10-13 13:44:13,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 13:44:13,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2024-10-13 13:44:13,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:13,737 INFO L225 Difference]: With dead ends: 152 [2024-10-13 13:44:13,737 INFO L226 Difference]: Without dead ends: 86 [2024-10-13 13:44:13,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 13:44:13,739 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 5 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:13,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 126 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 13:44:13,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-13 13:44:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-10-13 13:44:13,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 66 states have (on average 1.1666666666666667) internal successors, (77), 68 states have internal predecessors, (77), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 13:44:13,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 97 transitions. [2024-10-13 13:44:13,749 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 97 transitions. Word has length 48 [2024-10-13 13:44:13,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:13,749 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 97 transitions. [2024-10-13 13:44:13,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-13 13:44:13,750 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 97 transitions. [2024-10-13 13:44:13,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-13 13:44:13,751 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:13,751 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:13,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 13:44:13,751 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:13,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:13,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1823196049, now seen corresponding path program 1 times [2024-10-13 13:44:13,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:13,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161917553] [2024-10-13 13:44:13,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:13,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 13:44:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:13,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:13,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161917553] [2024-10-13 13:44:13,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161917553] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:44:13,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853321505] [2024-10-13 13:44:13,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:13,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:44:13,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:44:13,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:44:13,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 13:44:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:13,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:44:13,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:44:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:44:14,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:44:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:14,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853321505] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 13:44:14,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 13:44:14,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 22 [2024-10-13 13:44:14,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527085097] [2024-10-13 13:44:14,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 13:44:14,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 13:44:14,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:14,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 13:44:14,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2024-10-13 13:44:14,281 INFO L87 Difference]: Start difference. First operand 86 states and 97 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:44:14,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:14,474 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-10-13 13:44:14,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 13:44:14,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 49 [2024-10-13 13:44:14,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:14,475 INFO L225 Difference]: With dead ends: 91 [2024-10-13 13:44:14,475 INFO L226 Difference]: Without dead ends: 83 [2024-10-13 13:44:14,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=722, Unknown=0, NotChecked=0, Total=870 [2024-10-13 13:44:14,477 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 47 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:14,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 133 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:44:14,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-13 13:44:14,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-10-13 13:44:14,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 65 states have internal predecessors, (73), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 13:44:14,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2024-10-13 13:44:14,491 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 49 [2024-10-13 13:44:14,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:14,491 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2024-10-13 13:44:14,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-13 13:44:14,491 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2024-10-13 13:44:14,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-13 13:44:14,495 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:14,495 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:14,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 13:44:14,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-13 13:44:14,700 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:14,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:14,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1982134855, now seen corresponding path program 1 times [2024-10-13 13:44:14,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:14,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73025300] [2024-10-13 13:44:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:14,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:14,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:14,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:14,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:14,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:14,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:14,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 13:44:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:14,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:14,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73025300] [2024-10-13 13:44:14,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73025300] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:44:14,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903435831] [2024-10-13 13:44:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:14,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:44:14,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:44:14,885 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:44:14,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 13:44:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:14,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 13:44:14,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:44:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:44:15,050 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:44:15,213 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:15,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903435831] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:44:15,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:44:15,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 21 [2024-10-13 13:44:15,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617740361] [2024-10-13 13:44:15,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:44:15,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-13 13:44:15,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:15,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-13 13:44:15,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-10-13 13:44:15,216 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 22 states have internal predecessors, (62), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-13 13:44:15,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:15,837 INFO L93 Difference]: Finished difference Result 117 states and 130 transitions. [2024-10-13 13:44:15,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-13 13:44:15,837 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 22 states have internal predecessors, (62), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 49 [2024-10-13 13:44:15,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:15,838 INFO L225 Difference]: With dead ends: 117 [2024-10-13 13:44:15,839 INFO L226 Difference]: Without dead ends: 116 [2024-10-13 13:44:15,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=339, Invalid=1301, Unknown=0, NotChecked=0, Total=1640 [2024-10-13 13:44:15,843 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 140 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:15,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 219 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 13:44:15,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-10-13 13:44:15,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 93. [2024-10-13 13:44:15,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 71 states have (on average 1.1690140845070423) internal successors, (83), 73 states have internal predecessors, (83), 11 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:44:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2024-10-13 13:44:15,861 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 49 [2024-10-13 13:44:15,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:15,861 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2024-10-13 13:44:15,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 22 states have internal predecessors, (62), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-13 13:44:15,861 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2024-10-13 13:44:15,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-13 13:44:15,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:15,863 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:15,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 13:44:16,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:44:16,067 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:16,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:16,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1965654570, now seen corresponding path program 1 times [2024-10-13 13:44:16,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:16,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870212660] [2024-10-13 13:44:16,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:16,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:16,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:16,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:16,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:16,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:16,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:16,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 13:44:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:16,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:16,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870212660] [2024-10-13 13:44:16,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870212660] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:44:16,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200312151] [2024-10-13 13:44:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:16,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:44:16,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:44:16,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:44:16,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 13:44:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:16,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 13:44:16,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:44:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 13:44:16,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:44:16,618 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-13 13:44:16,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200312151] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:44:16,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:44:16,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 26 [2024-10-13 13:44:16,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774673031] [2024-10-13 13:44:16,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:44:16,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-13 13:44:16,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:16,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-13 13:44:16,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2024-10-13 13:44:16,622 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand has 27 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 27 states have internal predecessors, (74), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-13 13:44:17,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:17,178 INFO L93 Difference]: Finished difference Result 119 states and 130 transitions. [2024-10-13 13:44:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-13 13:44:17,178 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 27 states have internal predecessors, (74), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 53 [2024-10-13 13:44:17,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:17,179 INFO L225 Difference]: With dead ends: 119 [2024-10-13 13:44:17,180 INFO L226 Difference]: Without dead ends: 94 [2024-10-13 13:44:17,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1817, Unknown=0, NotChecked=0, Total=2256 [2024-10-13 13:44:17,181 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 142 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:17,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 239 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 13:44:17,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-13 13:44:17,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-10-13 13:44:17,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 70 states have internal predecessors, (72), 11 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-13 13:44:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2024-10-13 13:44:17,197 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 53 [2024-10-13 13:44:17,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:17,198 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2024-10-13 13:44:17,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 27 states have internal predecessors, (74), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-13 13:44:17,198 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2024-10-13 13:44:17,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-13 13:44:17,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 13:44:17,200 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:17,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 13:44:17,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:44:17,401 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 13:44:17,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 13:44:17,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1170910788, now seen corresponding path program 2 times [2024-10-13 13:44:17,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 13:44:17,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978142224] [2024-10-13 13:44:17,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 13:44:17,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 13:44:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 13:44:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-13 13:44:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 13:44:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-13 13:44:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 13:44:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 13:44:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 13:44:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 13:44:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-13 13:44:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-13 13:44:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 13:44:17,557 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-10-13 13:44:17,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 13:44:17,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978142224] [2024-10-13 13:44:17,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978142224] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 13:44:17,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031770996] [2024-10-13 13:44:17,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 13:44:17,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 13:44:17,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 13:44:17,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 13:44:17,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 13:44:17,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 13:44:17,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 13:44:17,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 13:44:17,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 13:44:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 77 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-13 13:44:17,774 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 13:44:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-10-13 13:44:17,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031770996] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 13:44:17,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 13:44:17,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8] total 13 [2024-10-13 13:44:17,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120717058] [2024-10-13 13:44:17,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 13:44:17,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 13:44:17,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 13:44:17,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 13:44:17,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-13 13:44:17,884 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 7 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-10-13 13:44:18,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 13:44:18,097 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2024-10-13 13:44:18,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 13:44:18,097 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 7 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 85 [2024-10-13 13:44:18,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 13:44:18,098 INFO L225 Difference]: With dead ends: 90 [2024-10-13 13:44:18,098 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 13:44:18,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 178 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2024-10-13 13:44:18,099 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 34 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 13:44:18,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 148 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 13:44:18,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 13:44:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 13:44:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 13:44:18,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 13:44:18,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2024-10-13 13:44:18,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 13:44:18,101 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 13:44:18,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 13 states have internal predecessors, (63), 7 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-10-13 13:44:18,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 13:44:18,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 13:44:18,105 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-10-13 13:44:18,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-10-13 13:44:18,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-10-13 13:44:18,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-10-13 13:44:18,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-10-13 13:44:18,107 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-10-13 13:44:18,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 13:44:18,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-13 13:44:18,315 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 13:44:18,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 13:44:18,428 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 13:44:18,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:44:18 BoogieIcfgContainer [2024-10-13 13:44:18,448 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 13:44:18,448 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 13:44:18,449 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 13:44:18,449 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 13:44:18,449 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:44:09" (3/4) ... [2024-10-13 13:44:18,451 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 13:44:18,455 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-13 13:44:18,456 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-13 13:44:18,460 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-10-13 13:44:18,461 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-13 13:44:18,461 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-13 13:44:18,461 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 13:44:18,461 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 13:44:18,580 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 13:44:18,581 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 13:44:18,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 13:44:18,582 INFO L158 Benchmark]: Toolchain (without parser) took 9851.26ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 90.9MB in the beginning and 135.3MB in the end (delta: -44.3MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-10-13 13:44:18,583 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 13:44:18,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.51ms. Allocated memory is still 144.7MB. Free memory was 90.5MB in the beginning and 78.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 13:44:18,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.48ms. Allocated memory is still 144.7MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 13:44:18,583 INFO L158 Benchmark]: Boogie Preprocessor took 53.71ms. Allocated memory is still 144.7MB. Free memory was 76.7MB in the beginning and 116.0MB in the end (delta: -39.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 13:44:18,584 INFO L158 Benchmark]: RCFGBuilder took 622.09ms. Allocated memory is still 144.7MB. Free memory was 116.0MB in the beginning and 106.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-13 13:44:18,584 INFO L158 Benchmark]: TraceAbstraction took 8698.55ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 104.9MB in the beginning and 140.5MB in the end (delta: -35.6MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-10-13 13:44:18,585 INFO L158 Benchmark]: Witness Printer took 132.78ms. Allocated memory is still 209.7MB. Free memory was 140.5MB in the beginning and 135.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 13:44:18,586 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.51ms. Allocated memory is still 144.7MB. Free memory was 90.5MB in the beginning and 78.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.48ms. Allocated memory is still 144.7MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.71ms. Allocated memory is still 144.7MB. Free memory was 76.7MB in the beginning and 116.0MB in the end (delta: -39.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 622.09ms. Allocated memory is still 144.7MB. Free memory was 116.0MB in the beginning and 106.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8698.55ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 104.9MB in the beginning and 140.5MB in the end (delta: -35.6MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Witness Printer took 132.78ms. Allocated memory is still 209.7MB. Free memory was 140.5MB in the beginning and 135.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 12, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 627 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 627 mSDsluCounter, 2042 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1639 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1323 IncrementalHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 403 mSDtfsCounter, 1323 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 849 GetRequests, 644 SyntacticMatches, 5 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=7, InterpolantAutomatonStates: 159, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 74 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 816 NumberOfCodeBlocks, 816 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1075 ConstructedInterpolants, 0 QuantifiedInterpolants, 1955 SizeOfPredicates, 25 NumberOfNonLiveVariables, 723 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 22 InterpolantComputations, 8 PerfectInterpolantSequences, 983/1046 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((2 <= counter) && (counter <= 2147483645)) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((counter <= 2147483646) && (3 <= counter)) || (counter == 0)) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((counter == 1) || (counter == 2)) - ProcedureContractResult [Line: 11]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: (counter == 0) RESULT: Ultimate proved your program to be correct! [2024-10-13 13:44:18,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE