./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 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/reducercommutativity/sep05-1.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 ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:56:08,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:56:08,651 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 17:56:08,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:56:08,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:56:08,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:56:08,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:56:08,681 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:56:08,681 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:56:08,683 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:56:08,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:56:08,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:56:08,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:56:08,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:56:08,686 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:56:08,687 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:56:08,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 17:56:08,687 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:56:08,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:56:08,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:56:08,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:56:08,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 17:56:08,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:56:08,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 17:56:08,688 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:56:08,689 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 17:56:08,690 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:56:08,690 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:56:08,690 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 17:56:08,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:56:08,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:56:08,691 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:56:08,691 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:56:08,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:56:08,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:56:08,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:56:08,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:56:08,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 17:56:08,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:56:08,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:56:08,692 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:56:08,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:56:08,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:56:08,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:56:08,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 [2024-11-20 17:56:08,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:56:08,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:56:08,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:56:08,874 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:56:08,875 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:56:08,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep05-1.i [2024-11-20 17:56:10,182 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:56:10,323 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:56:10,323 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep05-1.i [2024-11-20 17:56:10,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f08955d56/38e806c86d93448fb4d09d62a26b7e03/FLAG6ff5cfb68 [2024-11-20 17:56:10,734 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f08955d56/38e806c86d93448fb4d09d62a26b7e03 [2024-11-20 17:56:10,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:56:10,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:56:10,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:56:10,738 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:56:10,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:56:10,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:56:10" (1/1) ... [2024-11-20 17:56:10,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9de998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:10, skipping insertion in model container [2024-11-20 17:56:10,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:56:10" (1/1) ... [2024-11-20 17:56:10,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:56:10,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:56:10,986 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:56:11,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:56:11,024 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:56:11,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11 WrapperNode [2024-11-20 17:56:11,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:56:11,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:56:11,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:56:11,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:56:11,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,059 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2024-11-20 17:56:11,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:56:11,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:56:11,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:56:11,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:56:11,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,110 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2024-11-20 17:56:11,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:56:11,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:56:11,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:56:11,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:56:11,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (1/1) ... [2024-11-20 17:56:11,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:56:11,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:11,192 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) [2024-11-20 17:56:11,194 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 [2024-11-20 17:56:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:56:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:56:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 17:56:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 17:56:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 17:56:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 17:56:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:56:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:56:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 17:56:11,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 17:56:11,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 17:56:11,231 INFO L130 BoogieDeclarations]: Found specification of procedure sep [2024-11-20 17:56:11,232 INFO L138 BoogieDeclarations]: Found implementation of procedure sep [2024-11-20 17:56:11,309 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:56:11,311 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:56:11,459 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-20 17:56:11,459 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:56:11,476 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:56:11,477 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 17:56:11,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:56:11 BoogieIcfgContainer [2024-11-20 17:56:11,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:56:11,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:56:11,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:56:11,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:56:11,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:56:10" (1/3) ... [2024-11-20 17:56:11,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae482cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:56:11, skipping insertion in model container [2024-11-20 17:56:11,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:56:11" (2/3) ... [2024-11-20 17:56:11,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae482cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:56:11, skipping insertion in model container [2024-11-20 17:56:11,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:56:11" (3/3) ... [2024-11-20 17:56:11,483 INFO L112 eAbstractionObserver]: Analyzing ICFG sep05-1.i [2024-11-20 17:56:11,496 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:56:11,496 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-20 17:56:11,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:56:11,542 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;@52d2c0cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:56:11,543 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-20 17:56:11,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 35 states have (on average 1.6) internal successors, (56), 47 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-20 17:56:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-20 17:56:11,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:11,550 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 17:56:11,550 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:11,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:11,555 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2024-11-20 17:56:11,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:11,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278287330] [2024-11-20 17:56:11,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:11,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:11,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:56:11,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:11,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278287330] [2024-11-20 17:56:11,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278287330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:11,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:11,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:56:11,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767953059] [2024-11-20 17:56:11,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:11,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:11,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:11,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:11,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:11,755 INFO L87 Difference]: Start difference. First operand has 52 states, 35 states have (on average 1.6) internal successors, (56), 47 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2024-11-20 17:56:11,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:11,793 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2024-11-20 17:56:11,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:11,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2024-11-20 17:56:11,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:11,801 INFO L225 Difference]: With dead ends: 101 [2024-11-20 17:56:11,802 INFO L226 Difference]: Without dead ends: 48 [2024-11-20 17:56:11,804 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 [2024-11-20 17:56:11,806 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:11,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 148 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:11,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-20 17:56:11,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-20 17:56:11,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.5) internal successors, (48), 44 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2024-11-20 17:56:11,834 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 5 [2024-11-20 17:56:11,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:11,834 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2024-11-20 17:56:11,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2024-11-20 17:56:11,835 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2024-11-20 17:56:11,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 17:56:11,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:11,835 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-20 17:56:11,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:56:11,836 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:11,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:11,837 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2024-11-20 17:56:11,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:11,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345473705] [2024-11-20 17:56:11,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:11,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:11,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:56:11,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:11,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345473705] [2024-11-20 17:56:11,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345473705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:11,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286489866] [2024-11-20 17:56:11,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:11,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:11,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:11,945 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) [2024-11-20 17:56:11,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 17:56:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:11,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:56:11,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:56:12,034 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:12,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286489866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:12,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:12,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-20 17:56:12,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961520874] [2024-11-20 17:56:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:12,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:56:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:56:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:12,037 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:12,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:12,066 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2024-11-20 17:56:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:56:12,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-20 17:56:12,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:12,067 INFO L225 Difference]: With dead ends: 48 [2024-11-20 17:56:12,067 INFO L226 Difference]: Without dead ends: 47 [2024-11-20 17:56:12,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:12,069 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:12,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 164 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:12,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-20 17:56:12,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-20 17:56:12,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.46875) internal successors, (47), 43 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2024-11-20 17:56:12,074 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 9 [2024-11-20 17:56:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:12,074 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2024-11-20 17:56:12,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2024-11-20 17:56:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-20 17:56:12,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:12,075 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-11-20 17:56:12,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:12,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:12,278 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:12,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:12,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2024-11-20 17:56:12,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:12,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959053178] [2024-11-20 17:56:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:12,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:12,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 17:56:12,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:12,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959053178] [2024-11-20 17:56:12,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959053178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:12,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:12,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:56:12,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839055317] [2024-11-20 17:56:12,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:12,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:12,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:12,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:12,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:12,338 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-20 17:56:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:12,352 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2024-11-20 17:56:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:12,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-20 17:56:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:12,353 INFO L225 Difference]: With dead ends: 47 [2024-11-20 17:56:12,353 INFO L226 Difference]: Without dead ends: 46 [2024-11-20 17:56:12,353 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 [2024-11-20 17:56:12,354 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:12,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:12,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-20 17:56:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2024-11-20 17:56:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 39 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2024-11-20 17:56:12,359 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 10 [2024-11-20 17:56:12,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:12,359 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2024-11-20 17:56:12,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-20 17:56:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2024-11-20 17:56:12,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-20 17:56:12,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:12,360 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:12,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:56:12,361 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:12,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:12,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1638450343, now seen corresponding path program 1 times [2024-11-20 17:56:12,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:12,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369086314] [2024-11-20 17:56:12,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:12,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:56:12,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369086314] [2024-11-20 17:56:12,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369086314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070382633] [2024-11-20 17:56:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:12,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:12,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:12,432 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) [2024-11-20 17:56:12,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 17:56:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:12,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:56:12,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:56:12,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:12,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:56:12,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070382633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:12,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:12,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 17:56:12,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546042954] [2024-11-20 17:56:12,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:12,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 17:56:12,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:12,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 17:56:12,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 17:56:12,547 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:12,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:12,584 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2024-11-20 17:56:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:56:12,585 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-20 17:56:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:12,585 INFO L225 Difference]: With dead ends: 87 [2024-11-20 17:56:12,585 INFO L226 Difference]: Without dead ends: 51 [2024-11-20 17:56:12,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 17:56:12,586 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 2 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:12,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 165 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:12,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-20 17:56:12,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-20 17:56:12,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 47 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-20 17:56:12,594 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 13 [2024-11-20 17:56:12,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:12,596 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-20 17:56:12,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:12,597 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-20 17:56:12,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-20 17:56:12,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:12,599 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:12,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 17:56:12,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-20 17:56:12,804 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:12,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:12,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1677870673, now seen corresponding path program 2 times [2024-11-20 17:56:12,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:12,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888594448] [2024-11-20 17:56:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:12,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 17:56:12,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:12,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888594448] [2024-11-20 17:56:12,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888594448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:12,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:12,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:56:12,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679443122] [2024-11-20 17:56:12,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:12,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:12,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:12,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:12,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:12,950 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:12,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:12,995 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2024-11-20 17:56:12,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:12,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-20 17:56:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:13,000 INFO L225 Difference]: With dead ends: 58 [2024-11-20 17:56:13,000 INFO L226 Difference]: Without dead ends: 56 [2024-11-20 17:56:13,000 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 [2024-11-20 17:56:13,001 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:13,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 122 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:13,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-20 17:56:13,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2024-11-20 17:56:13,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 51 states have internal predecessors, (57), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2024-11-20 17:56:13,010 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 21 [2024-11-20 17:56:13,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:13,011 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2024-11-20 17:56:13,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:13,011 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2024-11-20 17:56:13,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-20 17:56:13,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:13,012 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:13,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:56:13,012 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:13,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:13,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1677870481, now seen corresponding path program 1 times [2024-11-20 17:56:13,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:13,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850557189] [2024-11-20 17:56:13,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:13,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:13,062 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 17:56:13,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:13,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850557189] [2024-11-20 17:56:13,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850557189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:13,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:13,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:56:13,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55519544] [2024-11-20 17:56:13,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:13,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:13,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:13,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:13,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:13,064 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:13,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:13,080 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2024-11-20 17:56:13,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:13,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-20 17:56:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:13,082 INFO L225 Difference]: With dead ends: 60 [2024-11-20 17:56:13,082 INFO L226 Difference]: Without dead ends: 58 [2024-11-20 17:56:13,082 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 [2024-11-20 17:56:13,083 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:13,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 122 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-20 17:56:13,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2024-11-20 17:56:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 43 states have (on average 1.372093023255814) internal successors, (59), 53 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2024-11-20 17:56:13,088 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 21 [2024-11-20 17:56:13,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:13,088 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2024-11-20 17:56:13,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2024-11-20 17:56:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-20 17:56:13,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:13,089 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:13,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:56:13,089 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:13,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:13,090 INFO L85 PathProgramCache]: Analyzing trace with hash 615944742, now seen corresponding path program 1 times [2024-11-20 17:56:13,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:13,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053850703] [2024-11-20 17:56:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:13,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:13,128 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 17:56:13,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:13,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053850703] [2024-11-20 17:56:13,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053850703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:13,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:13,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:56:13,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994871014] [2024-11-20 17:56:13,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:13,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:13,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:13,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:13,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:13,130 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:13,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:13,145 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2024-11-20 17:56:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:13,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-20 17:56:13,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:13,146 INFO L225 Difference]: With dead ends: 100 [2024-11-20 17:56:13,146 INFO L226 Difference]: Without dead ends: 60 [2024-11-20 17:56:13,147 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 [2024-11-20 17:56:13,147 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 4 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:13,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 124 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:13,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-20 17:56:13,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-20 17:56:13,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.326086956521739) internal successors, (61), 56 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2024-11-20 17:56:13,152 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 24 [2024-11-20 17:56:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:13,152 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2024-11-20 17:56:13,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2024-11-20 17:56:13,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-20 17:56:13,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:13,153 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:13,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:56:13,153 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:13,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:13,154 INFO L85 PathProgramCache]: Analyzing trace with hash -445739691, now seen corresponding path program 1 times [2024-11-20 17:56:13,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:13,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20104065] [2024-11-20 17:56:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:13,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-20 17:56:13,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:13,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20104065] [2024-11-20 17:56:13,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20104065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:13,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475249860] [2024-11-20 17:56:13,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:13,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:13,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:13,214 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) [2024-11-20 17:56:13,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 17:56:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:13,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 17:56:13,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:13,322 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 17:56:13,322 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 17:56:13,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475249860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:13,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:13,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 15 [2024-11-20 17:56:13,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622611347] [2024-11-20 17:56:13,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:13,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 17:56:13,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:13,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 17:56:13,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-20 17:56:13,412 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:13,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:13,479 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2024-11-20 17:56:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 17:56:13,480 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-20 17:56:13,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:13,481 INFO L225 Difference]: With dead ends: 121 [2024-11-20 17:56:13,481 INFO L226 Difference]: Without dead ends: 76 [2024-11-20 17:56:13,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-20 17:56:13,482 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:13,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 213 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 17:56:13,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-20 17:56:13,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2024-11-20 17:56:13,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 70 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:13,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2024-11-20 17:56:13,490 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 28 [2024-11-20 17:56:13,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:13,490 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2024-11-20 17:56:13,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:13,491 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2024-11-20 17:56:13,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-20 17:56:13,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:13,492 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:13,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 17:56:13,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:13,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:13,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash -329436515, now seen corresponding path program 1 times [2024-11-20 17:56:13,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:13,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409519439] [2024-11-20 17:56:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:13,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:13,754 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:13,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:13,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409519439] [2024-11-20 17:56:13,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409519439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:13,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240606639] [2024-11-20 17:56:13,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:13,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:13,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:13,757 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) [2024-11-20 17:56:13,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 17:56:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:13,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:56:13,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:13,848 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:13,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:13,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240606639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:13,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:13,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-20 17:56:13,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197830735] [2024-11-20 17:56:13,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:13,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:56:13,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:13,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:56:13,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-20 17:56:13,852 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:13,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:13,898 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2024-11-20 17:56:13,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:56:13,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-20 17:56:13,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:13,903 INFO L225 Difference]: With dead ends: 74 [2024-11-20 17:56:13,903 INFO L226 Difference]: Without dead ends: 73 [2024-11-20 17:56:13,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-20 17:56:13,904 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:13,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 142 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:13,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-20 17:56:13,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-20 17:56:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 69 states have internal predecessors, (76), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2024-11-20 17:56:13,913 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 36 [2024-11-20 17:56:13,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:13,913 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2024-11-20 17:56:13,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2024-11-20 17:56:13,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-20 17:56:13,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:13,914 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:13,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:14,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:14,119 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:14,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:14,119 INFO L85 PathProgramCache]: Analyzing trace with hash -971626345, now seen corresponding path program 1 times [2024-11-20 17:56:14,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:14,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740095670] [2024-11-20 17:56:14,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:14,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:14,176 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:14,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:14,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740095670] [2024-11-20 17:56:14,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740095670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:14,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107409261] [2024-11-20 17:56:14,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:14,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:14,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:14,178 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) [2024-11-20 17:56:14,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 17:56:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:14,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:56:14,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:14,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:14,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107409261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:14,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:14,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-20 17:56:14,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128005259] [2024-11-20 17:56:14,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:14,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:56:14,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:14,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:56:14,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:14,255 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:14,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:14,291 INFO L93 Difference]: Finished difference Result 94 states and 108 transitions. [2024-11-20 17:56:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:56:14,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-20 17:56:14,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:14,292 INFO L225 Difference]: With dead ends: 94 [2024-11-20 17:56:14,292 INFO L226 Difference]: Without dead ends: 93 [2024-11-20 17:56:14,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:14,293 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 11 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:14,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 194 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:14,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-20 17:56:14,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 87. [2024-11-20 17:56:14,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 83 states have internal predecessors, (100), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:14,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 105 transitions. [2024-11-20 17:56:14,298 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 105 transitions. Word has length 36 [2024-11-20 17:56:14,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:14,298 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 105 transitions. [2024-11-20 17:56:14,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 105 transitions. [2024-11-20 17:56:14,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-20 17:56:14,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:14,299 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:14,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:14,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-20 17:56:14,500 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:14,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:14,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1622591304, now seen corresponding path program 1 times [2024-11-20 17:56:14,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:14,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704312519] [2024-11-20 17:56:14,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:14,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:14,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:14,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704312519] [2024-11-20 17:56:14,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704312519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:14,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550580822] [2024-11-20 17:56:14,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:14,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:14,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:14,584 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) [2024-11-20 17:56:14,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 17:56:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:14,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:56:14,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:14,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:14,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550580822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:14,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:14,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-20 17:56:14,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13163023] [2024-11-20 17:56:14,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:14,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:14,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:14,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:14,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:14,659 INFO L87 Difference]: Start difference. First operand 87 states and 105 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:14,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:14,675 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2024-11-20 17:56:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:14,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-20 17:56:14,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:14,676 INFO L225 Difference]: With dead ends: 87 [2024-11-20 17:56:14,677 INFO L226 Difference]: Without dead ends: 86 [2024-11-20 17:56:14,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:14,678 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 3 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:14,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 108 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-20 17:56:14,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-20 17:56:14,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 82 states have internal predecessors, (98), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 103 transitions. [2024-11-20 17:56:14,688 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 103 transitions. Word has length 37 [2024-11-20 17:56:14,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:14,689 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 103 transitions. [2024-11-20 17:56:14,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 103 transitions. [2024-11-20 17:56:14,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-20 17:56:14,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:14,689 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:14,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 17:56:14,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:14,890 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:14,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:14,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1622597262, now seen corresponding path program 1 times [2024-11-20 17:56:14,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:14,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522180953] [2024-11-20 17:56:14,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:14,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:14,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:14,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522180953] [2024-11-20 17:56:14,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522180953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:14,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375444505] [2024-11-20 17:56:14,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:14,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:14,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:14,987 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) [2024-11-20 17:56:14,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 17:56:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:15,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:56:15,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:15,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:15,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375444505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:15,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:15,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-20 17:56:15,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080532153] [2024-11-20 17:56:15,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:15,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:56:15,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:15,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:56:15,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:15,070 INFO L87 Difference]: Start difference. First operand 86 states and 103 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:15,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:15,117 INFO L93 Difference]: Finished difference Result 107 states and 129 transitions. [2024-11-20 17:56:15,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:56:15,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-20 17:56:15,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:15,119 INFO L225 Difference]: With dead ends: 107 [2024-11-20 17:56:15,119 INFO L226 Difference]: Without dead ends: 106 [2024-11-20 17:56:15,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:15,120 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 12 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:15,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 161 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:15,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-20 17:56:15,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2024-11-20 17:56:15,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 88 states have (on average 1.375) internal successors, (121), 96 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 126 transitions. [2024-11-20 17:56:15,131 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 126 transitions. Word has length 37 [2024-11-20 17:56:15,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:15,131 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 126 transitions. [2024-11-20 17:56:15,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:15,131 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 126 transitions. [2024-11-20 17:56:15,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-20 17:56:15,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:15,134 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:15,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:15,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:15,339 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:15,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:15,339 INFO L85 PathProgramCache]: Analyzing trace with hash -55651464, now seen corresponding path program 1 times [2024-11-20 17:56:15,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:15,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791071476] [2024-11-20 17:56:15,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:15,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:15,438 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:15,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:15,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791071476] [2024-11-20 17:56:15,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791071476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:15,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288635187] [2024-11-20 17:56:15,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:15,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:15,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:15,443 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) [2024-11-20 17:56:15,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 17:56:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:15,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:56:15,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:15,532 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:15,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288635187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:15,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:15,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-20 17:56:15,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450684401] [2024-11-20 17:56:15,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:15,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 17:56:15,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 17:56:15,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 17:56:15,576 INFO L87 Difference]: Start difference. First operand 100 states and 126 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:15,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:15,614 INFO L93 Difference]: Finished difference Result 126 states and 160 transitions. [2024-11-20 17:56:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:56:15,614 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-20 17:56:15,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:15,616 INFO L225 Difference]: With dead ends: 126 [2024-11-20 17:56:15,616 INFO L226 Difference]: Without dead ends: 125 [2024-11-20 17:56:15,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 17:56:15,617 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:15,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 241 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:15,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-20 17:56:15,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 118. [2024-11-20 17:56:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 106 states have (on average 1.4056603773584906) internal successors, (149), 114 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:15,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 154 transitions. [2024-11-20 17:56:15,626 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 154 transitions. Word has length 37 [2024-11-20 17:56:15,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:15,626 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 154 transitions. [2024-11-20 17:56:15,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:15,627 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 154 transitions. [2024-11-20 17:56:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-20 17:56:15,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:15,627 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:15,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-20 17:56:15,829 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,SelfDestructingSolverStorable12 [2024-11-20 17:56:15,830 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:15,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:15,830 INFO L85 PathProgramCache]: Analyzing trace with hash -237110886, now seen corresponding path program 1 times [2024-11-20 17:56:15,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:15,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165118944] [2024-11-20 17:56:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:15,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:15,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:15,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165118944] [2024-11-20 17:56:15,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165118944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:15,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930683350] [2024-11-20 17:56:15,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:15,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:15,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:15,885 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) [2024-11-20 17:56:15,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 17:56:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:15,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:56:15,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:15,961 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:15,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:15,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930683350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:15,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:15,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-20 17:56:15,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942718566] [2024-11-20 17:56:15,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:15,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:56:15,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:15,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:56:15,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:15,963 INFO L87 Difference]: Start difference. First operand 118 states and 154 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:15,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:15,978 INFO L93 Difference]: Finished difference Result 118 states and 154 transitions. [2024-11-20 17:56:15,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:56:15,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-20 17:56:15,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:15,979 INFO L225 Difference]: With dead ends: 118 [2024-11-20 17:56:15,979 INFO L226 Difference]: Without dead ends: 117 [2024-11-20 17:56:15,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:15,980 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 11 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:15,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 122 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-20 17:56:15,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-20 17:56:15,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 113 states have internal predecessors, (142), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:15,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2024-11-20 17:56:15,984 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 39 [2024-11-20 17:56:15,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:15,984 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2024-11-20 17:56:15,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2024-11-20 17:56:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-20 17:56:15,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:15,985 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:15,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:16,188 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,SelfDestructingSolverStorable13 [2024-11-20 17:56:16,189 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting sepErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:16,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:16,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1239497249, now seen corresponding path program 1 times [2024-11-20 17:56:16,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:16,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983195623] [2024-11-20 17:56:16,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:16,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:16,225 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-20 17:56:16,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:16,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983195623] [2024-11-20 17:56:16,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983195623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:16,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:16,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:56:16,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306181806] [2024-11-20 17:56:16,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:16,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:16,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:16,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:16,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:16,226 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:16,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:16,237 INFO L93 Difference]: Finished difference Result 117 states and 147 transitions. [2024-11-20 17:56:16,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:16,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-20 17:56:16,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:16,238 INFO L225 Difference]: With dead ends: 117 [2024-11-20 17:56:16,238 INFO L226 Difference]: Without dead ends: 116 [2024-11-20 17:56:16,239 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 [2024-11-20 17:56:16,239 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 5 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:16,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 106 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:16,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-20 17:56:16,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-20 17:56:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 106 states have (on average 1.2735849056603774) internal successors, (135), 112 states have internal predecessors, (135), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 140 transitions. [2024-11-20 17:56:16,243 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 140 transitions. Word has length 40 [2024-11-20 17:56:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:16,243 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 140 transitions. [2024-11-20 17:56:16,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 140 transitions. [2024-11-20 17:56:16,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-20 17:56:16,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:16,243 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:16,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 17:56:16,244 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:16,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:16,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2028804809, now seen corresponding path program 2 times [2024-11-20 17:56:16,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:16,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895525293] [2024-11-20 17:56:16,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:16,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:16,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:16,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895525293] [2024-11-20 17:56:16,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895525293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:16,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129302840] [2024-11-20 17:56:16,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 17:56:16,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:16,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:16,314 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) [2024-11-20 17:56:16,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 17:56:16,381 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 17:56:16,381 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:56:16,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 17:56:16,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:16,413 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:16,475 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:16,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129302840] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:16,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:16,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-20 17:56:16,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388549192] [2024-11-20 17:56:16,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:16,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 17:56:16,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:16,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 17:56:16,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-20 17:56:16,477 INFO L87 Difference]: Start difference. First operand 116 states and 140 transitions. Second operand has 16 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 16 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:16,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:16,510 INFO L93 Difference]: Finished difference Result 150 states and 185 transitions. [2024-11-20 17:56:16,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 17:56:16,511 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 16 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-20 17:56:16,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:16,511 INFO L225 Difference]: With dead ends: 150 [2024-11-20 17:56:16,511 INFO L226 Difference]: Without dead ends: 149 [2024-11-20 17:56:16,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-20 17:56:16,512 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 17 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:16,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 178 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-20 17:56:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 144. [2024-11-20 17:56:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 134 states have (on average 1.2761194029850746) internal successors, (171), 140 states have internal predecessors, (171), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 176 transitions. [2024-11-20 17:56:16,516 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 176 transitions. Word has length 43 [2024-11-20 17:56:16,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:16,517 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 176 transitions. [2024-11-20 17:56:16,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 16 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 176 transitions. [2024-11-20 17:56:16,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-20 17:56:16,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:16,517 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:16,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:16,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-20 17:56:16,718 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:16,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:16,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1386614787, now seen corresponding path program 1 times [2024-11-20 17:56:16,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:16,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004975991] [2024-11-20 17:56:16,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:16,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:16,805 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:16,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:16,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004975991] [2024-11-20 17:56:16,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004975991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:16,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563028033] [2024-11-20 17:56:16,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:16,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:16,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:16,807 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:16,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-20 17:56:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:16,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 17:56:16,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:16,900 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:16,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563028033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:16,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:16,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-11-20 17:56:16,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577381069] [2024-11-20 17:56:16,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:16,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:56:16,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:16,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:56:16,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-20 17:56:16,902 INFO L87 Difference]: Start difference. First operand 144 states and 176 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:16,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:16,922 INFO L93 Difference]: Finished difference Result 153 states and 188 transitions. [2024-11-20 17:56:16,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:56:16,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-20 17:56:16,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:16,923 INFO L225 Difference]: With dead ends: 153 [2024-11-20 17:56:16,923 INFO L226 Difference]: Without dead ends: 152 [2024-11-20 17:56:16,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-20 17:56:16,924 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:16,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 150 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-20 17:56:16,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 136. [2024-11-20 17:56:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 132 states have internal predecessors, (160), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:16,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2024-11-20 17:56:16,928 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 43 [2024-11-20 17:56:16,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:16,928 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2024-11-20 17:56:16,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:16,928 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2024-11-20 17:56:16,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-20 17:56:16,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:16,929 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:16,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:17,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-20 17:56:17,130 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:17,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:17,130 INFO L85 PathProgramCache]: Analyzing trace with hash -919949233, now seen corresponding path program 2 times [2024-11-20 17:56:17,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:17,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119791809] [2024-11-20 17:56:17,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:17,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:17,196 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:17,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:17,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119791809] [2024-11-20 17:56:17,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119791809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:17,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926577231] [2024-11-20 17:56:17,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 17:56:17,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:17,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:17,200 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:17,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-20 17:56:17,254 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 17:56:17,254 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:56:17,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 17:56:17,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-20 17:56:17,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-20 17:56:17,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926577231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:17,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:17,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-11-20 17:56:17,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212583778] [2024-11-20 17:56:17,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:17,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 17:56:17,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:17,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 17:56:17,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-20 17:56:17,332 INFO L87 Difference]: Start difference. First operand 136 states and 165 transitions. Second operand has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:17,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:17,378 INFO L93 Difference]: Finished difference Result 193 states and 241 transitions. [2024-11-20 17:56:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 17:56:17,378 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-20 17:56:17,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:17,379 INFO L225 Difference]: With dead ends: 193 [2024-11-20 17:56:17,379 INFO L226 Difference]: Without dead ends: 192 [2024-11-20 17:56:17,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-20 17:56:17,379 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 8 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:17,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 202 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:17,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-20 17:56:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 180. [2024-11-20 17:56:17,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 170 states have (on average 1.2823529411764707) internal successors, (218), 176 states have internal predecessors, (218), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:17,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2024-11-20 17:56:17,385 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 43 [2024-11-20 17:56:17,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:17,385 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2024-11-20 17:56:17,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:17,385 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2024-11-20 17:56:17,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-20 17:56:17,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:17,386 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:17,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-20 17:56:17,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-20 17:56:17,587 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:17,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:17,587 INFO L85 PathProgramCache]: Analyzing trace with hash 35379596, now seen corresponding path program 1 times [2024-11-20 17:56:17,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:17,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271727963] [2024-11-20 17:56:17,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:17,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:17,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:17,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271727963] [2024-11-20 17:56:17,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271727963] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:17,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837598237] [2024-11-20 17:56:17,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:17,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:17,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:17,672 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:17,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-20 17:56:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:17,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 17:56:17,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-20 17:56:17,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-20 17:56:17,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837598237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:17,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:17,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-11-20 17:56:17,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233016329] [2024-11-20 17:56:17,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:17,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 17:56:17,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:17,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 17:56:17,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-20 17:56:17,806 INFO L87 Difference]: Start difference. First operand 180 states and 223 transitions. Second operand has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:17,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:17,851 INFO L93 Difference]: Finished difference Result 250 states and 317 transitions. [2024-11-20 17:56:17,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 17:56:17,852 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-20 17:56:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:17,852 INFO L225 Difference]: With dead ends: 250 [2024-11-20 17:56:17,852 INFO L226 Difference]: Without dead ends: 249 [2024-11-20 17:56:17,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-20 17:56:17,853 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:17,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 225 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:17,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-20 17:56:17,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 243. [2024-11-20 17:56:17,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 239 states have internal predecessors, (298), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:17,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 303 transitions. [2024-11-20 17:56:17,860 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 303 transitions. Word has length 44 [2024-11-20 17:56:17,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:17,860 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 303 transitions. [2024-11-20 17:56:17,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:17,860 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 303 transitions. [2024-11-20 17:56:17,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-20 17:56:17,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:17,861 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:17,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:18,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:18,062 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:18,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:18,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2046299830, now seen corresponding path program 1 times [2024-11-20 17:56:18,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:18,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187732786] [2024-11-20 17:56:18,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:18,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 17:56:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 17:56:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-20 17:56:18,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:18,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187732786] [2024-11-20 17:56:18,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187732786] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:18,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111509499] [2024-11-20 17:56:18,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:18,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:18,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:18,142 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:18,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-20 17:56:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 17:56:18,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:18,212 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-20 17:56:18,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:18,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111509499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:18,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:18,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 17:56:18,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703281492] [2024-11-20 17:56:18,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:18,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:56:18,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:18,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:56:18,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:56:18,214 INFO L87 Difference]: Start difference. First operand 243 states and 303 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:18,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:18,231 INFO L93 Difference]: Finished difference Result 248 states and 310 transitions. [2024-11-20 17:56:18,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:56:18,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2024-11-20 17:56:18,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:18,232 INFO L225 Difference]: With dead ends: 248 [2024-11-20 17:56:18,233 INFO L226 Difference]: Without dead ends: 247 [2024-11-20 17:56:18,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:56:18,233 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:18,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 69 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:18,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-20 17:56:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2024-11-20 17:56:18,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 235 states have (on average 1.2808510638297872) internal successors, (301), 241 states have internal predecessors, (301), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 306 transitions. [2024-11-20 17:56:18,240 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 306 transitions. Word has length 54 [2024-11-20 17:56:18,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:18,241 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 306 transitions. [2024-11-20 17:56:18,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:18,241 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 306 transitions. [2024-11-20 17:56:18,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-20 17:56:18,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:18,241 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:18,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-20 17:56:18,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:18,443 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:18,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:18,443 INFO L85 PathProgramCache]: Analyzing trace with hash -989214644, now seen corresponding path program 1 times [2024-11-20 17:56:18,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:18,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326907743] [2024-11-20 17:56:18,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:18,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 17:56:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 17:56:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,508 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-20 17:56:18,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:18,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326907743] [2024-11-20 17:56:18,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326907743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:18,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370912978] [2024-11-20 17:56:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:18,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:18,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:18,512 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:18,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-20 17:56:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 17:56:18,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-20 17:56:18,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:18,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370912978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:18,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:18,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 17:56:18,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797781608] [2024-11-20 17:56:18,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:18,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:56:18,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:18,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:56:18,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:56:18,582 INFO L87 Difference]: Start difference. First operand 245 states and 306 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:18,612 INFO L93 Difference]: Finished difference Result 453 states and 570 transitions. [2024-11-20 17:56:18,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:56:18,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 55 [2024-11-20 17:56:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:18,613 INFO L225 Difference]: With dead ends: 453 [2024-11-20 17:56:18,613 INFO L226 Difference]: Without dead ends: 247 [2024-11-20 17:56:18,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:56:18,616 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:18,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 71 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:18,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-20 17:56:18,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 246. [2024-11-20 17:56:18,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 236 states have (on average 1.2754237288135593) internal successors, (301), 242 states have internal predecessors, (301), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 306 transitions. [2024-11-20 17:56:18,623 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 306 transitions. Word has length 55 [2024-11-20 17:56:18,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:18,623 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 306 transitions. [2024-11-20 17:56:18,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:18,623 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 306 transitions. [2024-11-20 17:56:18,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 17:56:18,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:18,624 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:18,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-20 17:56:18,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:18,825 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:18,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:18,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1447498290, now seen corresponding path program 1 times [2024-11-20 17:56:18,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:18,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064764322] [2024-11-20 17:56:18,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:18,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 17:56:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 17:56:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,883 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-20 17:56:18,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:18,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064764322] [2024-11-20 17:56:18,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064764322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:18,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954249522] [2024-11-20 17:56:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:18,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:18,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:18,888 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:18,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-20 17:56:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:18,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:56:18,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-20 17:56:18,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-20 17:56:18,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954249522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:18,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:18,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-20 17:56:18,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676394212] [2024-11-20 17:56:18,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:18,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 17:56:18,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:18,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 17:56:18,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:18,999 INFO L87 Difference]: Start difference. First operand 246 states and 306 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 17:56:19,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:19,021 INFO L93 Difference]: Finished difference Result 479 states and 601 transitions. [2024-11-20 17:56:19,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:56:19,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2024-11-20 17:56:19,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:19,022 INFO L225 Difference]: With dead ends: 479 [2024-11-20 17:56:19,022 INFO L226 Difference]: Without dead ends: 258 [2024-11-20 17:56:19,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:56:19,023 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 22 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:19,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 178 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:19,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-20 17:56:19,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2024-11-20 17:56:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 248 states have (on average 1.2459677419354838) internal successors, (309), 254 states have internal predecessors, (309), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 314 transitions. [2024-11-20 17:56:19,030 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 314 transitions. Word has length 57 [2024-11-20 17:56:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:19,030 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 314 transitions. [2024-11-20 17:56:19,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 17:56:19,030 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 314 transitions. [2024-11-20 17:56:19,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 17:56:19,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:19,031 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:19,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:19,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-20 17:56:19,232 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:19,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:19,232 INFO L85 PathProgramCache]: Analyzing trace with hash 467207171, now seen corresponding path program 3 times [2024-11-20 17:56:19,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:19,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835505280] [2024-11-20 17:56:19,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:19,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:19,331 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 5 proven. 37 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-20 17:56:19,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:19,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835505280] [2024-11-20 17:56:19,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835505280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:19,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619410731] [2024-11-20 17:56:19,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 17:56:19,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:19,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:19,335 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:19,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-20 17:56:19,408 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-20 17:56:19,408 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:56:19,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 17:56:19,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 5 proven. 33 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-20 17:56:19,440 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:19,524 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 5 proven. 33 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-20 17:56:19,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619410731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:19,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:19,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 17 [2024-11-20 17:56:19,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531074449] [2024-11-20 17:56:19,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:19,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 17:56:19,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:19,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 17:56:19,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-20 17:56:19,539 INFO L87 Difference]: Start difference. First operand 258 states and 314 transitions. Second operand has 18 states, 17 states have (on average 3.588235294117647) internal successors, (61), 18 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:19,600 INFO L93 Difference]: Finished difference Result 464 states and 587 transitions. [2024-11-20 17:56:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 17:56:19,601 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.588235294117647) internal successors, (61), 18 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-20 17:56:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:19,602 INFO L225 Difference]: With dead ends: 464 [2024-11-20 17:56:19,602 INFO L226 Difference]: Without dead ends: 463 [2024-11-20 17:56:19,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-20 17:56:19,603 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 10 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:19,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 374 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:19,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-20 17:56:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 296. [2024-11-20 17:56:19,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 286 states have (on average 1.2447552447552448) internal successors, (356), 292 states have internal predecessors, (356), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 361 transitions. [2024-11-20 17:56:19,611 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 361 transitions. Word has length 57 [2024-11-20 17:56:19,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:19,611 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 361 transitions. [2024-11-20 17:56:19,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.588235294117647) internal successors, (61), 18 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 361 transitions. [2024-11-20 17:56:19,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 17:56:19,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:19,612 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:19,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:19,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:19,817 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:19,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:19,817 INFO L85 PathProgramCache]: Analyzing trace with hash -954765056, now seen corresponding path program 2 times [2024-11-20 17:56:19,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:19,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078795890] [2024-11-20 17:56:19,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:19,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 5 proven. 40 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-20 17:56:19,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:19,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078795890] [2024-11-20 17:56:19,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078795890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:19,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399370660] [2024-11-20 17:56:19,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 17:56:19,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:19,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:19,915 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:19,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-20 17:56:19,982 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 17:56:19,982 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:56:19,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 17:56:19,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:20,013 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-20 17:56:20,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:20,095 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-20 17:56:20,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399370660] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:20,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:20,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 17 [2024-11-20 17:56:20,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432410045] [2024-11-20 17:56:20,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:20,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 17:56:20,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:20,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 17:56:20,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-20 17:56:20,097 INFO L87 Difference]: Start difference. First operand 296 states and 361 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:20,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:20,150 INFO L93 Difference]: Finished difference Result 527 states and 665 transitions. [2024-11-20 17:56:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 17:56:20,151 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-20 17:56:20,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:20,152 INFO L225 Difference]: With dead ends: 527 [2024-11-20 17:56:20,152 INFO L226 Difference]: Without dead ends: 526 [2024-11-20 17:56:20,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2024-11-20 17:56:20,153 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 10 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:20,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 295 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:20,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-20 17:56:20,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 330. [2024-11-20 17:56:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 320 states have (on average 1.246875) internal successors, (399), 326 states have internal predecessors, (399), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 404 transitions. [2024-11-20 17:56:20,163 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 404 transitions. Word has length 58 [2024-11-20 17:56:20,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:20,164 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 404 transitions. [2024-11-20 17:56:20,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:20,164 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 404 transitions. [2024-11-20 17:56:20,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-20 17:56:20,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:20,165 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:20,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:20,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:20,366 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:20,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1622164023, now seen corresponding path program 3 times [2024-11-20 17:56:20,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:20,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940519320] [2024-11-20 17:56:20,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:20,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:20,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:20,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940519320] [2024-11-20 17:56:20,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940519320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:20,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32070078] [2024-11-20 17:56:20,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 17:56:20,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:20,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:20,584 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:20,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-20 17:56:20,673 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-20 17:56:20,674 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:56:20,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 17:56:20,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:20,749 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-20 17:56:20,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32070078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:20,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:20,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-11-20 17:56:20,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780187514] [2024-11-20 17:56:20,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:20,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-20 17:56:20,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:20,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-20 17:56:20,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-11-20 17:56:20,978 INFO L87 Difference]: Start difference. First operand 330 states and 404 transitions. Second operand has 32 states, 31 states have (on average 3.3870967741935485) internal successors, (105), 32 states have internal predecessors, (105), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:21,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:21,040 INFO L93 Difference]: Finished difference Result 421 states and 525 transitions. [2024-11-20 17:56:21,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-20 17:56:21,040 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.3870967741935485) internal successors, (105), 32 states have internal predecessors, (105), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-20 17:56:21,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:21,041 INFO L225 Difference]: With dead ends: 421 [2024-11-20 17:56:21,042 INFO L226 Difference]: Without dead ends: 420 [2024-11-20 17:56:21,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-11-20 17:56:21,042 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 29 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:21,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 288 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:21,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-20 17:56:21,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 401. [2024-11-20 17:56:21,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 391 states have (on average 1.2557544757033248) internal successors, (491), 397 states have internal predecessors, (491), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 496 transitions. [2024-11-20 17:56:21,057 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 496 transitions. Word has length 71 [2024-11-20 17:56:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:21,057 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 496 transitions. [2024-11-20 17:56:21,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.3870967741935485) internal successors, (105), 32 states have internal predecessors, (105), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 496 transitions. [2024-11-20 17:56:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-20 17:56:21,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:21,058 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:21,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-20 17:56:21,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:21,263 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:21,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:21,263 INFO L85 PathProgramCache]: Analyzing trace with hash -25284401, now seen corresponding path program 4 times [2024-11-20 17:56:21,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:21,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040994814] [2024-11-20 17:56:21,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:21,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 5 proven. 95 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-20 17:56:21,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:21,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040994814] [2024-11-20 17:56:21,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040994814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:21,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010878339] [2024-11-20 17:56:21,428 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 17:56:21,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:21,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:21,431 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:21,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-20 17:56:21,501 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 17:56:21,501 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:56:21,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 17:56:21,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:21,554 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 5 proven. 95 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-20 17:56:21,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 5 proven. 95 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-20 17:56:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010878339] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:21,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:21,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 25 [2024-11-20 17:56:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075630702] [2024-11-20 17:56:21,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:21,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 17:56:21,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 17:56:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2024-11-20 17:56:21,700 INFO L87 Difference]: Start difference. First operand 401 states and 496 transitions. Second operand has 26 states, 25 states have (on average 3.32) internal successors, (83), 26 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:21,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:21,773 INFO L93 Difference]: Finished difference Result 735 states and 939 transitions. [2024-11-20 17:56:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-20 17:56:21,773 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.32) internal successors, (83), 26 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-20 17:56:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:21,775 INFO L225 Difference]: With dead ends: 735 [2024-11-20 17:56:21,775 INFO L226 Difference]: Without dead ends: 734 [2024-11-20 17:56:21,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2024-11-20 17:56:21,776 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 16 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:21,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 339 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 17:56:21,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-11-20 17:56:21,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 457. [2024-11-20 17:56:21,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 447 states have (on average 1.2595078299776286) internal successors, (563), 453 states have internal predecessors, (563), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 568 transitions. [2024-11-20 17:56:21,791 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 568 transitions. Word has length 71 [2024-11-20 17:56:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:21,791 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 568 transitions. [2024-11-20 17:56:21,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.32) internal successors, (83), 26 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 568 transitions. [2024-11-20 17:56:21,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-20 17:56:21,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:21,792 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:21,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:21,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-20 17:56:21,997 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:21,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:21,997 INFO L85 PathProgramCache]: Analyzing trace with hash 764812422, now seen corresponding path program 3 times [2024-11-20 17:56:21,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:21,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108156397] [2024-11-20 17:56:21,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:21,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 10 proven. 75 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-20 17:56:22,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:22,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108156397] [2024-11-20 17:56:22,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108156397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:22,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127438914] [2024-11-20 17:56:22,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 17:56:22,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:22,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:22,176 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:22,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-20 17:56:22,240 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-20 17:56:22,240 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:56:22,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 17:56:22,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:22,317 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-20 17:56:22,318 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:22,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127438914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:22,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:22,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-20 17:56:22,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589355318] [2024-11-20 17:56:22,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:22,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:56:22,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:22,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:56:22,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-20 17:56:22,319 INFO L87 Difference]: Start difference. First operand 457 states and 568 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:22,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:22,370 INFO L93 Difference]: Finished difference Result 491 states and 612 transitions. [2024-11-20 17:56:22,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:56:22,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-20 17:56:22,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:22,372 INFO L225 Difference]: With dead ends: 491 [2024-11-20 17:56:22,373 INFO L226 Difference]: Without dead ends: 490 [2024-11-20 17:56:22,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-20 17:56:22,373 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:22,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 138 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:22,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-20 17:56:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 457. [2024-11-20 17:56:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 447 states have (on average 1.2595078299776286) internal successors, (563), 453 states have internal predecessors, (563), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 568 transitions. [2024-11-20 17:56:22,389 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 568 transitions. Word has length 72 [2024-11-20 17:56:22,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:22,390 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 568 transitions. [2024-11-20 17:56:22,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 568 transitions. [2024-11-20 17:56:22,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-20 17:56:22,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:22,391 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:22,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-20 17:56:22,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-20 17:56:22,592 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:22,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:22,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1963209076, now seen corresponding path program 4 times [2024-11-20 17:56:22,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:22,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546151684] [2024-11-20 17:56:22,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:22,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-20 17:56:22,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:22,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546151684] [2024-11-20 17:56:22,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546151684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:22,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18134637] [2024-11-20 17:56:22,739 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 17:56:22,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:22,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:22,741 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:22,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-20 17:56:22,811 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 17:56:22,811 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:56:22,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 17:56:22,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-20 17:56:22,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-20 17:56:22,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18134637] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:22,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:22,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 25 [2024-11-20 17:56:22,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394575119] [2024-11-20 17:56:22,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:22,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 17:56:22,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:22,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 17:56:22,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2024-11-20 17:56:23,000 INFO L87 Difference]: Start difference. First operand 457 states and 568 transitions. Second operand has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:23,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:23,099 INFO L93 Difference]: Finished difference Result 857 states and 1094 transitions. [2024-11-20 17:56:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-20 17:56:23,099 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-20 17:56:23,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:23,101 INFO L225 Difference]: With dead ends: 857 [2024-11-20 17:56:23,101 INFO L226 Difference]: Without dead ends: 856 [2024-11-20 17:56:23,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2024-11-20 17:56:23,102 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 17 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:23,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 392 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 17:56:23,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-20 17:56:23,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 514. [2024-11-20 17:56:23,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 504 states have (on average 1.2658730158730158) internal successors, (638), 510 states have internal predecessors, (638), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:23,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 643 transitions. [2024-11-20 17:56:23,121 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 643 transitions. Word has length 72 [2024-11-20 17:56:23,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:23,121 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 643 transitions. [2024-11-20 17:56:23,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:23,121 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 643 transitions. [2024-11-20 17:56:23,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-20 17:56:23,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:23,122 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:23,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:23,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-20 17:56:23,327 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:23,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:23,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1927050958, now seen corresponding path program 2 times [2024-11-20 17:56:23,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:23,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663485544] [2024-11-20 17:56:23,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:23,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:23,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 17:56:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:23,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 17:56:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:23,378 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-11-20 17:56:23,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:23,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663485544] [2024-11-20 17:56:23,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663485544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:23,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:23,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:56:23,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481983982] [2024-11-20 17:56:23,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:23,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:23,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:23,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:23,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:23,379 INFO L87 Difference]: Start difference. First operand 514 states and 643 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:23,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:23,411 INFO L93 Difference]: Finished difference Result 519 states and 648 transitions. [2024-11-20 17:56:23,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:23,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-20 17:56:23,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:23,413 INFO L225 Difference]: With dead ends: 519 [2024-11-20 17:56:23,413 INFO L226 Difference]: Without dead ends: 517 [2024-11-20 17:56:23,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:23,414 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 1 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:23,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 102 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:23,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-20 17:56:23,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2024-11-20 17:56:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 507 states have (on average 1.2642998027613412) internal successors, (641), 513 states have internal predecessors, (641), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 646 transitions. [2024-11-20 17:56:23,431 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 646 transitions. Word has length 85 [2024-11-20 17:56:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:23,431 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 646 transitions. [2024-11-20 17:56:23,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 646 transitions. [2024-11-20 17:56:23,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-20 17:56:23,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:23,432 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 7, 7, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:23,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 17:56:23,432 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:23,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:23,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1161471613, now seen corresponding path program 5 times [2024-11-20 17:56:23,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:23,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731985381] [2024-11-20 17:56:23,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:23,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 5 proven. 188 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-20 17:56:23,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:23,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731985381] [2024-11-20 17:56:23,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731985381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:23,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704744867] [2024-11-20 17:56:23,630 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 17:56:23,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:23,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:23,632 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:23,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-20 17:56:23,718 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-20 17:56:23,718 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:56:23,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 17:56:23,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:23,926 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-20 17:56:23,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:56:23,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704744867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:23,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 17:56:23,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [16] total 32 [2024-11-20 17:56:23,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974926384] [2024-11-20 17:56:23,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:23,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 17:56:23,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:23,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 17:56:23,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=840, Unknown=0, NotChecked=0, Total=992 [2024-11-20 17:56:23,929 INFO L87 Difference]: Start difference. First operand 517 states and 646 transitions. Second operand has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:24,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:24,006 INFO L93 Difference]: Finished difference Result 767 states and 948 transitions. [2024-11-20 17:56:24,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 17:56:24,006 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-20 17:56:24,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:24,009 INFO L225 Difference]: With dead ends: 767 [2024-11-20 17:56:24,009 INFO L226 Difference]: Without dead ends: 273 [2024-11-20 17:56:24,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=840, Unknown=0, NotChecked=0, Total=992 [2024-11-20 17:56:24,012 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 15 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:24,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 466 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 17:56:24,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-20 17:56:24,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 94. [2024-11-20 17:56:24,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 87 states have (on average 1.1379310344827587) internal successors, (99), 90 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:24,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 103 transitions. [2024-11-20 17:56:24,018 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 103 transitions. Word has length 85 [2024-11-20 17:56:24,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:24,019 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 103 transitions. [2024-11-20 17:56:24,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 103 transitions. [2024-11-20 17:56:24,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-20 17:56:24,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:24,019 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:24,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:24,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:24,224 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:24,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:24,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2052684676, now seen corresponding path program 1 times [2024-11-20 17:56:24,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:24,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298909930] [2024-11-20 17:56:24,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:24,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 17:56:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 17:56:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-11-20 17:56:24,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:24,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298909930] [2024-11-20 17:56:24,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298909930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:56:24,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127301092] [2024-11-20 17:56:24,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:24,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:24,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:56:24,290 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:56:24,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-20 17:56:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 17:56:24,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:56:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 71 proven. 24 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-20 17:56:24,449 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:56:24,521 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-20 17:56:24,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127301092] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:56:24,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:56:24,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 14 [2024-11-20 17:56:24,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796004779] [2024-11-20 17:56:24,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:56:24,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 17:56:24,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:24,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 17:56:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-20 17:56:24,524 INFO L87 Difference]: Start difference. First operand 94 states and 103 transitions. Second operand has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 17:56:24,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:24,593 INFO L93 Difference]: Finished difference Result 167 states and 187 transitions. [2024-11-20 17:56:24,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 17:56:24,593 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 88 [2024-11-20 17:56:24,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:24,594 INFO L225 Difference]: With dead ends: 167 [2024-11-20 17:56:24,594 INFO L226 Difference]: Without dead ends: 98 [2024-11-20 17:56:24,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 165 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-20 17:56:24,595 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 27 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:24,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 231 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 17:56:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-20 17:56:24,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2024-11-20 17:56:24,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 89 states have (on average 1.1123595505617978) internal successors, (99), 92 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2024-11-20 17:56:24,602 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 88 [2024-11-20 17:56:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:24,603 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2024-11-20 17:56:24,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-20 17:56:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2024-11-20 17:56:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-20 17:56:24,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:24,604 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:24,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-20 17:56:24,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:56:24,809 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:24,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash -637266874, now seen corresponding path program 1 times [2024-11-20 17:56:24,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:24,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063888799] [2024-11-20 17:56:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:24,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 17:56:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 17:56:24,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,869 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-20 17:56:24,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:24,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063888799] [2024-11-20 17:56:24,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063888799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:24,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:24,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:56:24,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134101135] [2024-11-20 17:56:24,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:24,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:56:24,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:24,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:56:24,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:56:24,871 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:24,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:24,892 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2024-11-20 17:56:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:56:24,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 117 [2024-11-20 17:56:24,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:24,892 INFO L225 Difference]: With dead ends: 96 [2024-11-20 17:56:24,892 INFO L226 Difference]: Without dead ends: 95 [2024-11-20 17:56:24,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:56:24,893 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:24,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 61 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:24,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-20 17:56:24,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-20 17:56:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 89 states have (on average 1.101123595505618) internal successors, (98), 91 states have internal predecessors, (98), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2024-11-20 17:56:24,898 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 102 transitions. Word has length 117 [2024-11-20 17:56:24,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:24,898 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 102 transitions. [2024-11-20 17:56:24,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:24,898 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 102 transitions. [2024-11-20 17:56:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-20 17:56:24,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:24,899 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:24,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 17:56:24,899 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:24,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:24,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1766859592, now seen corresponding path program 1 times [2024-11-20 17:56:24,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:24,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062814696] [2024-11-20 17:56:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:24,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 17:56:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 17:56:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:24,958 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-11-20 17:56:24,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:24,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062814696] [2024-11-20 17:56:24,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062814696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:24,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:24,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:56:24,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227687526] [2024-11-20 17:56:24,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:24,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:24,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:24,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:24,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:24,959 INFO L87 Difference]: Start difference. First operand 95 states and 102 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:24,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:24,983 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2024-11-20 17:56:24,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:24,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 119 [2024-11-20 17:56:24,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:24,984 INFO L225 Difference]: With dead ends: 95 [2024-11-20 17:56:24,984 INFO L226 Difference]: Without dead ends: 93 [2024-11-20 17:56:24,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:24,985 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:24,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 81 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:24,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-20 17:56:24,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-11-20 17:56:24,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 87 states have (on average 1.0804597701149425) internal successors, (94), 87 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 17:56:24,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2024-11-20 17:56:24,990 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 119 [2024-11-20 17:56:24,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:24,990 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2024-11-20 17:56:24,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2024-11-20 17:56:24,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-20 17:56:24,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:56:24,991 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:24,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-20 17:56:24,991 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-20 17:56:24,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:56:24,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1061927424, now seen corresponding path program 1 times [2024-11-20 17:56:24,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:56:24,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133590205] [2024-11-20 17:56:24,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:56:24,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:56:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:25,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 17:56:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:25,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 17:56:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:56:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-20 17:56:25,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:56:25,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133590205] [2024-11-20 17:56:25,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133590205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:56:25,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:56:25,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:56:25,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807858691] [2024-11-20 17:56:25,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:56:25,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:56:25,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:56:25,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:56:25,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:25,056 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:56:25,073 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2024-11-20 17:56:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:56:25,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 120 [2024-11-20 17:56:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:56:25,073 INFO L225 Difference]: With dead ends: 91 [2024-11-20 17:56:25,074 INFO L226 Difference]: Without dead ends: 0 [2024-11-20 17:56:25,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:56:25,074 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:56:25,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:56:25,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-20 17:56:25,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-20 17:56:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:56:25,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-20 17:56:25,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 120 [2024-11-20 17:56:25,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:56:25,075 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-20 17:56:25,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 17:56:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-20 17:56:25,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-20 17:56:25,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-20 17:56:25,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-20 17:56:25,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-20 17:56:25,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-20 17:56:25,078 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-20 17:56:25,078 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-20 17:56:25,078 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-11-20 17:56:25,078 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-11-20 17:56:25,078 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-20 17:56:25,078 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-20 17:56:25,078 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-20 17:56:25,078 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sepErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-20 17:56:25,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-20 17:56:25,081 INFO L407 BasicCegarLoop]: Path program histogram: [5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:56:25,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-20 17:56:26,886 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:56:26,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:56:26 BoogieIcfgContainer [2024-11-20 17:56:26,911 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:56:26,912 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:56:26,912 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:56:26,912 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:56:26,913 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:56:11" (3/4) ... [2024-11-20 17:56:26,914 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 17:56:26,918 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sep [2024-11-20 17:56:26,921 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-20 17:56:26,923 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-20 17:56:26,923 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 17:56:26,923 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 17:56:26,995 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 17:56:26,996 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 17:56:26,996 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:56:26,996 INFO L158 Benchmark]: Toolchain (without parser) took 16259.26ms. Allocated memory was 184.5MB in the beginning and 415.2MB in the end (delta: 230.7MB). Free memory was 117.0MB in the beginning and 235.2MB in the end (delta: -118.2MB). Peak memory consumption was 115.4MB. Max. memory is 16.1GB. [2024-11-20 17:56:26,996 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 104.9MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:56:26,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.61ms. Allocated memory is still 184.5MB. Free memory was 116.8MB in the beginning and 104.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 17:56:26,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.56ms. Allocated memory is still 184.5MB. Free memory was 104.0MB in the beginning and 102.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:56:26,998 INFO L158 Benchmark]: Boogie Preprocessor took 83.99ms. Allocated memory is still 184.5MB. Free memory was 102.4MB in the beginning and 154.4MB in the end (delta: -52.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-11-20 17:56:26,999 INFO L158 Benchmark]: RCFGBuilder took 331.18ms. Allocated memory is still 184.5MB. Free memory was 154.4MB in the beginning and 139.7MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 17:56:26,999 INFO L158 Benchmark]: TraceAbstraction took 15432.76ms. Allocated memory was 184.5MB in the beginning and 415.2MB in the end (delta: 230.7MB). Free memory was 139.1MB in the beginning and 240.4MB in the end (delta: -101.4MB). Peak memory consumption was 242.6MB. Max. memory is 16.1GB. [2024-11-20 17:56:26,999 INFO L158 Benchmark]: Witness Printer took 84.30ms. Allocated memory is still 415.2MB. Free memory was 240.4MB in the beginning and 235.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 17:56:26,999 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 104.9MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.61ms. Allocated memory is still 184.5MB. Free memory was 116.8MB in the beginning and 104.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.56ms. Allocated memory is still 184.5MB. Free memory was 104.0MB in the beginning and 102.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 83.99ms. Allocated memory is still 184.5MB. Free memory was 102.4MB in the beginning and 154.4MB in the end (delta: -52.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * RCFGBuilder took 331.18ms. Allocated memory is still 184.5MB. Free memory was 154.4MB in the beginning and 139.7MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15432.76ms. Allocated memory was 184.5MB in the beginning and 415.2MB in the end (delta: 230.7MB). Free memory was 139.1MB in the beginning and 240.4MB in the end (delta: -101.4MB). Peak memory consumption was 242.6MB. Max. memory is 16.1GB. * Witness Printer took 84.30ms. Allocated memory is still 415.2MB. Free memory was 240.4MB in the beginning and 235.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 34, TraceHistogramMax: 10, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 265 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 265 mSDsluCounter, 6178 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4837 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1645 IncrementalHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 1341 mSDtfsCounter, 1645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2084 GetRequests, 1760 SyntacticMatches, 10 SemanticMatches, 314 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=517occurred in iteration=29, InterpolantAutomatonStates: 312, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 34 MinimizatonAttempts, 1285 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 2932 NumberOfCodeBlocks, 2888 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 3543 ConstructedInterpolants, 0 QuantifiedInterpolants, 7159 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3892 ConjunctsInSsa, 177 ConjunctsInUnsatCore, 71 InterpolantComputations, 21 PerfectInterpolantSequences, 4740/6510 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((i == 0) || (0 < i)) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (0 < (2147483650 + i)) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((((((((((0 <= ((__int128) ret + 1)) && (ret <= 9223372036854775804)) && (5 <= i)) || (((i == 4) && (0 <= ((__int128) ret + 9223372036854775804))) && (ret <= 2))) || ((((__int128) ret + 1) == 0) && (i == 1))) || (((1 <= ret) && (ret <= 2)) && (2 == i))) || (((0 <= ((__int128) ret + 9223372036854775805)) && (ret <= 1)) && (5 <= i))) || (((((__int128) ret + 1) <= 0) && (0 <= ((__int128) 2 + ret))) && (2 == i))) || (((ret <= 1) && (3 == i)) && ((0 < ((__int128) 3 + ret)) || (((__int128) 3 + ret) == 0)))) || (((3 == i) && (ret <= 3)) && (0 < ((__int128) ret + 1)))) || (((ret <= 9223372036854775803) && (i == 4)) && (0 <= ((__int128) 2 + ret)))) || ((ret == 1) && (i == 1))) || ((ret == 0) && (2 == i))) || ((ret == 0) && (i == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-20 17:56:27,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE