./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ed0b12ce7ca8412687eea32cd5c4beaf5275fff5c5bfef18c07965c0f054672 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:26:36,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:26:36,970 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:26:36,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:26:36,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:26:37,007 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:26:37,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:26:37,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:26:37,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:26:37,010 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:26:37,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:26:37,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:26:37,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:26:37,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:26:37,014 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:26:37,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:26:37,015 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:26:37,015 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:26:37,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:26:37,016 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:26:37,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:26:37,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:26:37,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:26:37,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:26:37,021 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:26:37,021 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:26:37,022 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:26:37,022 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:26:37,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:26:37,022 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:26:37,023 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:26:37,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:26:37,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:26:37,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:26:37,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:26:37,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:26:37,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:26:37,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:26:37,025 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:26:37,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:26:37,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:26:37,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:26:37,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:26:37,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:26:37,027 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ed0b12ce7ca8412687eea32cd5c4beaf5275fff5c5bfef18c07965c0f054672 [2024-10-14 20:26:37,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:26:37,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:26:37,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:26:37,288 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:26:37,289 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:26:37,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i [2024-10-14 20:26:38,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:26:38,789 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:26:38,789 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i [2024-10-14 20:26:38,797 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f00a278/3cf5b5f49bd946a1a7671fb54d7d41ea/FLAGd1ae0e4c0 [2024-10-14 20:26:39,174 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f00a278/3cf5b5f49bd946a1a7671fb54d7d41ea [2024-10-14 20:26:39,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:26:39,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:26:39,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:26:39,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:26:39,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:26:39,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5c17e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39, skipping insertion in model container [2024-10-14 20:26:39,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:26:39,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:26:39,362 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:26:39,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:26:39,411 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:26:39,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39 WrapperNode [2024-10-14 20:26:39,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:26:39,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:26:39,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:26:39,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:26:39,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,459 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2024-10-14 20:26:39,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:26:39,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:26:39,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:26:39,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:26:39,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,479 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 20:26:39,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:26:39,489 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:26:39,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:26:39,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:26:39,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (1/1) ... [2024-10-14 20:26:39,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:26:39,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:39,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 20:26:39,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 20:26:39,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:26:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:26:39,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:26:39,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:26:39,646 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:26:39,648 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:26:39,776 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-14 20:26:39,776 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:26:39,794 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:26:39,794 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:26:39,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:26:39 BoogieIcfgContainer [2024-10-14 20:26:39,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:26:39,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:26:39,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:26:39,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:26:39,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:26:39" (1/3) ... [2024-10-14 20:26:39,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4dac6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:26:39, skipping insertion in model container [2024-10-14 20:26:39,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:26:39" (2/3) ... [2024-10-14 20:26:39,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4dac6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:26:39, skipping insertion in model container [2024-10-14 20:26:39,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:26:39" (3/3) ... [2024-10-14 20:26:39,805 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark22_conjunctive.i [2024-10-14 20:26:39,819 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:26:39,819 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 20:26:39,865 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:26:39,871 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;@50e498c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:26:39,871 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 20:26:39,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:39,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 20:26:39,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:39,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 20:26:39,882 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:39,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:39,887 INFO L85 PathProgramCache]: Analyzing trace with hash 72255252, now seen corresponding path program 1 times [2024-10-14 20:26:39,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:39,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601057263] [2024-10-14 20:26:39,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:39,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:40,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:40,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:40,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601057263] [2024-10-14 20:26:40,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601057263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:26:40,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:26:40,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:26:40,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051619444] [2024-10-14 20:26:40,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:26:40,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:26:40,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:40,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:26:40,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:26:40,093 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:40,138 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2024-10-14 20:26:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:26:40,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-14 20:26:40,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:40,148 INFO L225 Difference]: With dead ends: 31 [2024-10-14 20:26:40,148 INFO L226 Difference]: Without dead ends: 16 [2024-10-14 20:26:40,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:26:40,153 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:40,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:26:40,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-14 20:26:40,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-10-14 20:26:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-10-14 20:26:40,179 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2024-10-14 20:26:40,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:40,180 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-10-14 20:26:40,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,180 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-10-14 20:26:40,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-14 20:26:40,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:40,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 20:26:40,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:26:40,181 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:40,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:40,182 INFO L85 PathProgramCache]: Analyzing trace with hash -2055054433, now seen corresponding path program 1 times [2024-10-14 20:26:40,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:40,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835889736] [2024-10-14 20:26:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:40,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:40,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:40,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:40,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835889736] [2024-10-14 20:26:40,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835889736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:26:40,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:26:40,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:26:40,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718491494] [2024-10-14 20:26:40,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:26:40,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:26:40,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:40,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:26:40,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:26:40,237 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:40,265 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-10-14 20:26:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:26:40,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-14 20:26:40,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:40,266 INFO L225 Difference]: With dead ends: 17 [2024-10-14 20:26:40,267 INFO L226 Difference]: Without dead ends: 16 [2024-10-14 20:26:40,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:26:40,268 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:40,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:26:40,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-14 20:26:40,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-14 20:26:40,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-10-14 20:26:40,277 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6 [2024-10-14 20:26:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:40,277 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-10-14 20:26:40,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-10-14 20:26:40,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 20:26:40,278 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:40,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:26:40,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:26:40,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:40,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash 717822070, now seen corresponding path program 1 times [2024-10-14 20:26:40,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:40,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047104830] [2024-10-14 20:26:40,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:40,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:40,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:40,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047104830] [2024-10-14 20:26:40,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047104830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:26:40,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:26:40,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:26:40,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904348570] [2024-10-14 20:26:40,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:26:40,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:26:40,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:40,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:26:40,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:26:40,361 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:40,384 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-10-14 20:26:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:26:40,384 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-14 20:26:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:40,385 INFO L225 Difference]: With dead ends: 16 [2024-10-14 20:26:40,385 INFO L226 Difference]: Without dead ends: 15 [2024-10-14 20:26:40,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:26:40,387 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:40,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:26:40,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-10-14 20:26:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-14 20:26:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-10-14 20:26:40,397 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2024-10-14 20:26:40,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:40,397 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-10-14 20:26:40,398 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-10-14 20:26:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:26:40,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:40,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:26:40,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 20:26:40,399 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:40,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:40,402 INFO L85 PathProgramCache]: Analyzing trace with hash 777647745, now seen corresponding path program 1 times [2024-10-14 20:26:40,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:40,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486681681] [2024-10-14 20:26:40,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:40,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:40,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:40,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:40,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486681681] [2024-10-14 20:26:40,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486681681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:26:40,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:26:40,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:26:40,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989372071] [2024-10-14 20:26:40,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:26:40,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:26:40,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:26:40,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:26:40,474 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:40,506 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-10-14 20:26:40,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:26:40,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 20:26:40,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:40,508 INFO L225 Difference]: With dead ends: 18 [2024-10-14 20:26:40,508 INFO L226 Difference]: Without dead ends: 17 [2024-10-14 20:26:40,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:26:40,510 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:40,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:26:40,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-14 20:26:40,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-14 20:26:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-10-14 20:26:40,517 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2024-10-14 20:26:40,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:40,517 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-10-14 20:26:40,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:40,518 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-10-14 20:26:40,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-14 20:26:40,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:40,518 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:26:40,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:26:40,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:40,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:40,519 INFO L85 PathProgramCache]: Analyzing trace with hash -149581461, now seen corresponding path program 1 times [2024-10-14 20:26:40,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:40,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540806313] [2024-10-14 20:26:40,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:40,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:40,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:40,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:40,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540806313] [2024-10-14 20:26:40,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540806313] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:26:40,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079964010] [2024-10-14 20:26:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:40,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:40,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:40,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:26:40,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:26:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:40,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:26:40,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:26:40,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:40,880 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:26:40,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:40,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079964010] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:26:40,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:26:40,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 12 [2024-10-14 20:26:40,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574970699] [2024-10-14 20:26:40,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:26:40,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:26:40,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:40,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:26:40,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:26:40,982 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:41,074 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2024-10-14 20:26:41,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:26:41,075 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-14 20:26:41,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:41,076 INFO L225 Difference]: With dead ends: 29 [2024-10-14 20:26:41,076 INFO L226 Difference]: Without dead ends: 28 [2024-10-14 20:26:41,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:26:41,080 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:41,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 29 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:26:41,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-14 20:26:41,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-10-14 20:26:41,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-10-14 20:26:41,087 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 11 [2024-10-14 20:26:41,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:41,088 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-10-14 20:26:41,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:41,088 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-10-14 20:26:41,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 20:26:41,088 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:41,088 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:26:41,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 20:26:41,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:41,289 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:41,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:41,290 INFO L85 PathProgramCache]: Analyzing trace with hash -342057944, now seen corresponding path program 1 times [2024-10-14 20:26:41,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:41,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331232026] [2024-10-14 20:26:41,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:41,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:41,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:41,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331232026] [2024-10-14 20:26:41,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331232026] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:26:41,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169902363] [2024-10-14 20:26:41,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:41,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:41,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:41,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:26:41,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:26:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:41,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:26:41,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:26:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:41,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:26:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:41,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169902363] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:26:41,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:26:41,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-14 20:26:41,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388845258] [2024-10-14 20:26:41,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:26:41,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 20:26:41,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:41,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 20:26:41,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:26:41,573 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:41,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:41,625 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2024-10-14 20:26:41,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:26:41,626 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-14 20:26:41,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:41,627 INFO L225 Difference]: With dead ends: 28 [2024-10-14 20:26:41,628 INFO L226 Difference]: Without dead ends: 27 [2024-10-14 20:26:41,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:26:41,629 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:41,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:26:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-14 20:26:41,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-10-14 20:26:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-10-14 20:26:41,637 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 12 [2024-10-14 20:26:41,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:41,638 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-10-14 20:26:41,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:41,638 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-10-14 20:26:41,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:26:41,638 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:41,638 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:26:41,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:26:41,839 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,SelfDestructingSolverStorable5 [2024-10-14 20:26:41,840 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:41,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:41,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1994799306, now seen corresponding path program 1 times [2024-10-14 20:26:41,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:41,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904937897] [2024-10-14 20:26:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:41,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:41,907 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:41,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:41,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904937897] [2024-10-14 20:26:41,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904937897] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:26:41,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463576203] [2024-10-14 20:26:41,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:41,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:41,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:41,910 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:26:41,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:26:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:41,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:26:41,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:26:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:41,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:26:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:42,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463576203] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:26:42,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:26:42,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-14 20:26:42,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8223420] [2024-10-14 20:26:42,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:26:42,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 20:26:42,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 20:26:42,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:26:42,031 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:42,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:42,081 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2024-10-14 20:26:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:26:42,082 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 20:26:42,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:42,083 INFO L225 Difference]: With dead ends: 36 [2024-10-14 20:26:42,084 INFO L226 Difference]: Without dead ends: 35 [2024-10-14 20:26:42,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:26:42,085 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:42,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:26:42,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-10-14 20:26:42,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-10-14 20:26:42,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.15625) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:42,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2024-10-14 20:26:42,095 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 14 [2024-10-14 20:26:42,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:42,095 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2024-10-14 20:26:42,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:42,095 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2024-10-14 20:26:42,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 20:26:42,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:42,096 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1] [2024-10-14 20:26:42,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 20:26:42,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:42,297 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:42,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:42,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1640333735, now seen corresponding path program 2 times [2024-10-14 20:26:42,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:42,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124773499] [2024-10-14 20:26:42,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:42,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:42,484 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:42,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:42,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124773499] [2024-10-14 20:26:42,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124773499] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:26:42,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948290199] [2024-10-14 20:26:42,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:26:42,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:42,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:42,486 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:26:42,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:26:42,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:26:42,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:26:42,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:26:42,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:26:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:42,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:26:42,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948290199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:26:42,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:26:42,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2024-10-14 20:26:42,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039684099] [2024-10-14 20:26:42,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:26:42,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:26:42,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:42,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:26:42,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:26:42,723 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:42,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:42,800 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2024-10-14 20:26:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:26:42,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-10-14 20:26:42,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:42,801 INFO L225 Difference]: With dead ends: 35 [2024-10-14 20:26:42,802 INFO L226 Difference]: Without dead ends: 34 [2024-10-14 20:26:42,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:26:42,803 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:42,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:26:42,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-14 20:26:42,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-10-14 20:26:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.09375) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:42,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2024-10-14 20:26:42,811 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 23 [2024-10-14 20:26:42,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:42,812 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2024-10-14 20:26:42,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:42,812 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2024-10-14 20:26:42,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-14 20:26:42,812 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:42,812 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1] [2024-10-14 20:26:42,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:26:43,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:43,013 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:43,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:43,014 INFO L85 PathProgramCache]: Analyzing trace with hash 689261818, now seen corresponding path program 2 times [2024-10-14 20:26:43,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:43,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459899325] [2024-10-14 20:26:43,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:43,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:43,138 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:43,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:43,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459899325] [2024-10-14 20:26:43,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459899325] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:26:43,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109236120] [2024-10-14 20:26:43,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:26:43,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:43,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:43,141 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:26:43,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:26:43,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:26:43,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:26:43,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:26:43,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:26:43,368 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:43,368 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:26:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:43,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109236120] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:26:43,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:26:43,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-10-14 20:26:43,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311598818] [2024-10-14 20:26:43,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:26:43,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-14 20:26:43,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:43,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-14 20:26:43,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-10-14 20:26:43,522 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 23 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:43,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:43,666 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2024-10-14 20:26:43,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 20:26:43,667 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-10-14 20:26:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:43,667 INFO L225 Difference]: With dead ends: 51 [2024-10-14 20:26:43,667 INFO L226 Difference]: Without dead ends: 50 [2024-10-14 20:26:43,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2024-10-14 20:26:43,668 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:43,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:26:43,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-14 20:26:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-10-14 20:26:43,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2024-10-14 20:26:43,674 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 24 [2024-10-14 20:26:43,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:43,674 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2024-10-14 20:26:43,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:43,675 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2024-10-14 20:26:43,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-14 20:26:43,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:43,675 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1] [2024-10-14 20:26:43,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 20:26:43,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:43,880 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:43,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:43,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1991532763, now seen corresponding path program 2 times [2024-10-14 20:26:43,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:43,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88714703] [2024-10-14 20:26:43,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:43,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:44,024 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:44,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:44,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88714703] [2024-10-14 20:26:44,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88714703] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:26:44,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717073420] [2024-10-14 20:26:44,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:26:44,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:44,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:44,027 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:26:44,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:26:44,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:26:44,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:26:44,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 20:26:44,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:26:44,292 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:44,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:26:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:44,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717073420] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:26:44,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:26:44,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2024-10-14 20:26:44,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462363046] [2024-10-14 20:26:44,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:26:44,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-14 20:26:44,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:44,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-14 20:26:44,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2024-10-14 20:26:44,493 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 30 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 30 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:44,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:44,760 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2024-10-14 20:26:44,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 20:26:44,760 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 30 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-10-14 20:26:44,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:44,761 INFO L225 Difference]: With dead ends: 50 [2024-10-14 20:26:44,761 INFO L226 Difference]: Without dead ends: 49 [2024-10-14 20:26:44,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=292, Invalid=1430, Unknown=0, NotChecked=0, Total=1722 [2024-10-14 20:26:44,763 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:44,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:26:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-10-14 20:26:44,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-10-14 20:26:44,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2024-10-14 20:26:44,768 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 32 [2024-10-14 20:26:44,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:44,768 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2024-10-14 20:26:44,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.2413793103448274) internal successors, (94), 30 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2024-10-14 20:26:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 20:26:44,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:44,769 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 1, 1, 1] [2024-10-14 20:26:44,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 20:26:44,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:44,970 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:44,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:44,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1467404898, now seen corresponding path program 3 times [2024-10-14 20:26:44,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:44,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488390302] [2024-10-14 20:26:44,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:44,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:45,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:45,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488390302] [2024-10-14 20:26:45,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488390302] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:26:45,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779139622] [2024-10-14 20:26:45,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:26:45,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:45,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:45,337 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:26:45,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:26:45,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-10-14 20:26:45,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:26:45,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-14 20:26:45,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:26:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:45,887 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:26:46,326 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:46,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779139622] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:26:46,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:26:46,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2024-10-14 20:26:46,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153870866] [2024-10-14 20:26:46,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:26:46,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-10-14 20:26:46,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-10-14 20:26:46,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=1830, Unknown=0, NotChecked=0, Total=2162 [2024-10-14 20:26:46,329 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 47 states, 46 states have (on average 3.0869565217391304) internal successors, (142), 47 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:46,843 INFO L93 Difference]: Finished difference Result 98 states and 105 transitions. [2024-10-14 20:26:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-14 20:26:46,844 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 3.0869565217391304) internal successors, (142), 47 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-10-14 20:26:46,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:46,845 INFO L225 Difference]: With dead ends: 98 [2024-10-14 20:26:46,845 INFO L226 Difference]: Without dead ends: 97 [2024-10-14 20:26:46,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=530, Invalid=2892, Unknown=0, NotChecked=0, Total=3422 [2024-10-14 20:26:46,850 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:46,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:26:46,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-14 20:26:46,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-10-14 20:26:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.0104166666666667) internal successors, (97), 96 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:46,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2024-10-14 20:26:46,865 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 48 [2024-10-14 20:26:46,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:46,866 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2024-10-14 20:26:46,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.0869565217391304) internal successors, (142), 47 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:46,866 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2024-10-14 20:26:46,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 20:26:46,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:46,868 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 1, 1, 1] [2024-10-14 20:26:46,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:26:47,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:47,069 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:47,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2041113318, now seen corresponding path program 4 times [2024-10-14 20:26:47,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:47,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022245338] [2024-10-14 20:26:47,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:47,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:48,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:48,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022245338] [2024-10-14 20:26:48,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022245338] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:26:48,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966125213] [2024-10-14 20:26:48,127 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:26:48,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:48,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:48,128 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:26:48,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:26:48,190 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:26:48,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:26:48,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-14 20:26:48,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:26:49,504 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:49,504 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:26:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:50,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966125213] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:26:50,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:26:50,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2024-10-14 20:26:50,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919697617] [2024-10-14 20:26:50,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:26:50,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-10-14 20:26:50,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:26:50,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-10-14 20:26:50,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1180, Invalid=7750, Unknown=0, NotChecked=0, Total=8930 [2024-10-14 20:26:50,803 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand has 95 states, 94 states have (on average 3.0425531914893615) internal successors, (286), 95 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:26:52,928 INFO L93 Difference]: Finished difference Result 194 states and 209 transitions. [2024-10-14 20:26:52,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-14 20:26:52,929 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 3.0425531914893615) internal successors, (286), 95 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-10-14 20:26:52,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:26:52,930 INFO L225 Difference]: With dead ends: 194 [2024-10-14 20:26:52,930 INFO L226 Difference]: Without dead ends: 193 [2024-10-14 20:26:52,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4052 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2090, Invalid=12916, Unknown=0, NotChecked=0, Total=15006 [2024-10-14 20:26:52,934 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:26:52,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:26:52,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-10-14 20:26:52,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-10-14 20:26:52,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.0052083333333333) internal successors, (193), 192 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:52,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 193 transitions. [2024-10-14 20:26:52,946 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 193 transitions. Word has length 96 [2024-10-14 20:26:52,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:26:52,947 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 193 transitions. [2024-10-14 20:26:52,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 3.0425531914893615) internal successors, (286), 95 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:26:52,947 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 193 transitions. [2024-10-14 20:26:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-14 20:26:52,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:26:52,950 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 1, 1, 1] [2024-10-14 20:26:52,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-14 20:26:53,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-14 20:26:53,151 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:26:53,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:26:53,151 INFO L85 PathProgramCache]: Analyzing trace with hash 808998262, now seen corresponding path program 5 times [2024-10-14 20:26:53,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:26:53,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349194659] [2024-10-14 20:26:53,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:26:53,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:26:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:26:56,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 2914 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:26:56,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:26:56,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349194659] [2024-10-14 20:26:56,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349194659] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:26:56,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328527752] [2024-10-14 20:26:56,841 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 20:26:56,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:26:56,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:26:56,842 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:26:56,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:26:56,970 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2024-10-14 20:26:56,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:26:56,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-10-14 20:26:56,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:27:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 2914 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:27:00,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:27:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 2914 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:27:05,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328527752] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:27:05,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:27:05,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2024-10-14 20:27:05,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86889118] [2024-10-14 20:27:05,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:27:05,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2024-10-14 20:27:05,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:27:05,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2024-10-14 20:27:05,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4412, Invalid=31878, Unknown=0, NotChecked=0, Total=36290 [2024-10-14 20:27:05,353 INFO L87 Difference]: Start difference. First operand 193 states and 193 transitions. Second operand has 191 states, 190 states have (on average 3.0210526315789474) internal successors, (574), 191 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:27:14,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:27:14,643 INFO L93 Difference]: Finished difference Result 386 states and 417 transitions. [2024-10-14 20:27:14,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-10-14 20:27:14,643 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 3.0210526315789474) internal successors, (574), 191 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2024-10-14 20:27:14,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:27:14,645 INFO L225 Difference]: With dead ends: 386 [2024-10-14 20:27:14,645 INFO L226 Difference]: Without dead ends: 385 [2024-10-14 20:27:14,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17300 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=8282, Invalid=54468, Unknown=0, NotChecked=0, Total=62750 [2024-10-14 20:27:14,654 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:27:14,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 250 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:27:14,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-10-14 20:27:14,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2024-10-14 20:27:14,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.0026041666666667) internal successors, (385), 384 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:27:14,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 385 transitions. [2024-10-14 20:27:14,684 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 385 transitions. Word has length 192 [2024-10-14 20:27:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:27:14,685 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 385 transitions. [2024-10-14 20:27:14,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 3.0210526315789474) internal successors, (574), 191 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:27:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 385 transitions. [2024-10-14 20:27:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-10-14 20:27:14,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:27:14,694 INFO L215 NwaCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 1, 1, 1] [2024-10-14 20:27:14,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 20:27:14,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 20:27:14,895 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:27:14,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:27:14,895 INFO L85 PathProgramCache]: Analyzing trace with hash -367596906, now seen corresponding path program 6 times [2024-10-14 20:27:14,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:27:14,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011726127] [2024-10-14 20:27:14,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:27:14,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:27:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:27:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 11970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:27:26,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:27:26,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011726127] [2024-10-14 20:27:26,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011726127] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:27:26,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773376320] [2024-10-14 20:27:26,858 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 20:27:26,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:27:26,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:27:26,860 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:27:26,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:27:27,267 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2024-10-14 20:27:27,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:27:27,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-10-14 20:27:27,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:27:41,703 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 11970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:27:41,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:27:59,022 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 11970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:27:59,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773376320] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:27:59,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:27:59,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 382 [2024-10-14 20:27:59,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393055187] [2024-10-14 20:27:59,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:27:59,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2024-10-14 20:27:59,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:27:59,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2024-10-14 20:27:59,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17020, Invalid=129286, Unknown=0, NotChecked=0, Total=146306 [2024-10-14 20:27:59,036 INFO L87 Difference]: Start difference. First operand 385 states and 385 transitions. Second operand has 383 states, 382 states have (on average 3.0104712041884816) internal successors, (1150), 383 states have internal predecessors, (1150), 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)