./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c4f91361 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 ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ef2b56a2f4ebf2e6f7f4ededf8760f087ff726b08e36644d8dcb52a8d087cd1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-c4f9136-m [2023-11-23 16:00:35,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 16:00:35,613 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 16:00:35,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 16:00:35,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 16:00:35,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 16:00:35,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 16:00:35,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 16:00:35,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 16:00:35,645 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 16:00:35,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 16:00:35,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 16:00:35,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 16:00:35,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 16:00:35,647 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 16:00:35,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 16:00:35,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 16:00:35,648 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 16:00:35,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 16:00:35,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 16:00:35,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 16:00:35,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 16:00:35,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 16:00:35,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 16:00:35,650 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 16:00:35,650 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 16:00:35,650 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 16:00:35,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 16:00:35,651 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 16:00:35,651 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 16:00:35,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 16:00:35,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 16:00:35,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 16:00:35,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:00:35,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 16:00:35,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 16:00:35,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 16:00:35,654 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 16:00:35,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 16:00:35,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 16:00:35,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 16:00:35,654 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 16:00:35,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 16:00:35,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 16:00:35,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ef2b56a2f4ebf2e6f7f4ededf8760f087ff726b08e36644d8dcb52a8d087cd1 [2023-11-23 16:00:35,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 16:00:35,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 16:00:35,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 16:00:35,911 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 16:00:35,911 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 16:00:35,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6.c [2023-11-23 16:00:37,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 16:00:37,340 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 16:00:37,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6.c [2023-11-23 16:00:37,346 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34fc392dc/2c52f59688864a88aaa6439a9302c64c/FLAG85375a211 [2023-11-23 16:00:37,358 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34fc392dc/2c52f59688864a88aaa6439a9302c64c [2023-11-23 16:00:37,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 16:00:37,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 16:00:37,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 16:00:37,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 16:00:37,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 16:00:37,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42baf71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37, skipping insertion in model container [2023-11-23 16:00:37,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 16:00:37,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:00:37,535 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 16:00:37,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 16:00:37,561 INFO L206 MainTranslator]: Completed translation [2023-11-23 16:00:37,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37 WrapperNode [2023-11-23 16:00:37,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 16:00:37,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 16:00:37,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 16:00:37,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 16:00:37,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,593 INFO L138 Inliner]: procedures = 8, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-11-23 16:00:37,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 16:00:37,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 16:00:37,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 16:00:37,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 16:00:37,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,612 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 1 writes are split as follows [1, 0]. [2023-11-23 16:00:37,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 16:00:37,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 16:00:37,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 16:00:37,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 16:00:37,629 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (1/1) ... [2023-11-23 16:00:37,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 16:00:37,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:37,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 16:00:37,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 16:00:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 16:00:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 16:00:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 16:00:37,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 16:00:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 16:00:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 16:00:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 16:00:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 16:00:37,807 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 16:00:37,809 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 16:00:37,956 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 16:00:37,983 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 16:00:37,988 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 16:00:37,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:00:37 BoogieIcfgContainer [2023-11-23 16:00:37,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 16:00:37,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 16:00:37,990 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 16:00:37,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 16:00:37,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:00:37" (1/3) ... [2023-11-23 16:00:37,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375821b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:00:37, skipping insertion in model container [2023-11-23 16:00:37,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:00:37" (2/3) ... [2023-11-23 16:00:37,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375821b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:00:37, skipping insertion in model container [2023-11-23 16:00:37,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:00:37" (3/3) ... [2023-11-23 16:00:37,995 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength6.c [2023-11-23 16:00:38,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 16:00:38,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-23 16:00:38,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 16:00:38,056 INFO L357 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, mHoare=true, 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;@10edb541, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 16:00:38,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-23 16:00:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 16:00:38,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:38,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 16:00:38,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:38,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:38,069 INFO L85 PathProgramCache]: Analyzing trace with hash 3050483, now seen corresponding path program 1 times [2023-11-23 16:00:38,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:38,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918326135] [2023-11-23 16:00:38,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:38,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:38,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:38,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918326135] [2023-11-23 16:00:38,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918326135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:38,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:38,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:00:38,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620983165] [2023-11-23 16:00:38,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:38,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:00:38,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:38,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:00:38,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:00:38,326 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:38,409 INFO L93 Difference]: Finished difference Result 47 states and 63 transitions. [2023-11-23 16:00:38,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:00:38,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 16:00:38,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:38,417 INFO L225 Difference]: With dead ends: 47 [2023-11-23 16:00:38,417 INFO L226 Difference]: Without dead ends: 23 [2023-11-23 16:00:38,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:00:38,423 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:38,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 45 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-23 16:00:38,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2023-11-23 16:00:38,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.5625) internal successors, (25), 21 states have internal predecessors, (25), 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) [2023-11-23 16:00:38,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-11-23 16:00:38,448 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 4 [2023-11-23 16:00:38,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:38,449 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-11-23 16:00:38,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,449 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-23 16:00:38,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 16:00:38,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:38,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 16:00:38,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 16:00:38,450 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:38,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:38,451 INFO L85 PathProgramCache]: Analyzing trace with hash 94514786, now seen corresponding path program 1 times [2023-11-23 16:00:38,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:38,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667126801] [2023-11-23 16:00:38,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:38,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:38,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:38,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:38,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667126801] [2023-11-23 16:00:38,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667126801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:38,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:38,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:00:38,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838179070] [2023-11-23 16:00:38,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:38,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 16:00:38,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:38,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 16:00:38,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:38,514 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:38,530 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2023-11-23 16:00:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 16:00:38,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 16:00:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:38,532 INFO L225 Difference]: With dead ends: 43 [2023-11-23 16:00:38,532 INFO L226 Difference]: Without dead ends: 22 [2023-11-23 16:00:38,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 16:00:38,537 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:38,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:38,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-23 16:00:38,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-23 16:00:38,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.5) internal successors, (24), 21 states have internal predecessors, (24), 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) [2023-11-23 16:00:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-11-23 16:00:38,549 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 5 [2023-11-23 16:00:38,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:38,550 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-11-23 16:00:38,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-23 16:00:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 16:00:38,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:38,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 16:00:38,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 16:00:38,551 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:38,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:38,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1366165637, now seen corresponding path program 1 times [2023-11-23 16:00:38,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:38,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153679249] [2023-11-23 16:00:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:38,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:38,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:38,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153679249] [2023-11-23 16:00:38,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153679249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:38,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:38,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 16:00:38,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725768721] [2023-11-23 16:00:38,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:38,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:00:38,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:38,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:00:38,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:00:38,595 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:38,650 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2023-11-23 16:00:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:00:38,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 16:00:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:38,653 INFO L225 Difference]: With dead ends: 47 [2023-11-23 16:00:38,654 INFO L226 Difference]: Without dead ends: 40 [2023-11-23 16:00:38,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:00:38,656 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:38,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 35 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:38,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-23 16:00:38,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2023-11-23 16:00:38,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 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) [2023-11-23 16:00:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2023-11-23 16:00:38,666 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 6 [2023-11-23 16:00:38,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:38,667 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2023-11-23 16:00:38,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,668 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2023-11-23 16:00:38,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 16:00:38,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:38,668 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-23 16:00:38,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 16:00:38,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:38,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:38,673 INFO L85 PathProgramCache]: Analyzing trace with hash 682680883, now seen corresponding path program 1 times [2023-11-23 16:00:38,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:38,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128489348] [2023-11-23 16:00:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:38,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:38,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:38,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:38,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128489348] [2023-11-23 16:00:38,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128489348] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:38,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835320217] [2023-11-23 16:00:38,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:38,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:38,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:38,752 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) [2023-11-23 16:00:38,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 16:00:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:38,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:00:38,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:38,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:38,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:00:38,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835320217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:38,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:00:38,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-23 16:00:38,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415640866] [2023-11-23 16:00:38,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:38,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 16:00:38,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:38,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 16:00:38,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 16:00:38,841 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:38,921 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2023-11-23 16:00:38,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 16:00:38,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-23 16:00:38,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:38,922 INFO L225 Difference]: With dead ends: 27 [2023-11-23 16:00:38,922 INFO L226 Difference]: Without dead ends: 26 [2023-11-23 16:00:38,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-23 16:00:38,923 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:38,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 45 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:00:38,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-23 16:00:38,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-23 16:00:38,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2023-11-23 16:00:38,927 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 7 [2023-11-23 16:00:38,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:38,927 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-11-23 16:00:38,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:38,927 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2023-11-23 16:00:38,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 16:00:38,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:38,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:38,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:39,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:39,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:39,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:39,143 INFO L85 PathProgramCache]: Analyzing trace with hash -311779294, now seen corresponding path program 1 times [2023-11-23 16:00:39,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:39,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489022258] [2023-11-23 16:00:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:39,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 16:00:39,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:39,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489022258] [2023-11-23 16:00:39,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489022258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:39,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 16:00:39,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 16:00:39,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014791663] [2023-11-23 16:00:39,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:39,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 16:00:39,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:39,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 16:00:39,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 16:00:39,225 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:39,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:39,262 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2023-11-23 16:00:39,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:00:39,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 16:00:39,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:39,265 INFO L225 Difference]: With dead ends: 38 [2023-11-23 16:00:39,265 INFO L226 Difference]: Without dead ends: 36 [2023-11-23 16:00:39,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 16:00:39,266 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:39,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 32 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:39,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-23 16:00:39,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2023-11-23 16:00:39,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.3) internal successors, (39), 34 states have internal predecessors, (39), 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) [2023-11-23 16:00:39,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2023-11-23 16:00:39,276 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 8 [2023-11-23 16:00:39,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:39,276 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2023-11-23 16:00:39,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:39,277 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-11-23 16:00:39,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 16:00:39,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:39,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-23 16:00:39,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 16:00:39,278 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:39,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:39,279 INFO L85 PathProgramCache]: Analyzing trace with hash -311729053, now seen corresponding path program 1 times [2023-11-23 16:00:39,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:39,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079559239] [2023-11-23 16:00:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:39,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:39,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:39,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079559239] [2023-11-23 16:00:39,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079559239] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:39,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122637075] [2023-11-23 16:00:39,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:39,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:39,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:39,387 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) [2023-11-23 16:00:39,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 16:00:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:39,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:00:39,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:39,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:39,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122637075] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:39,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:39,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-23 16:00:39,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026100641] [2023-11-23 16:00:39,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:39,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 16:00:39,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:39,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 16:00:39,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:00:39,562 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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) [2023-11-23 16:00:39,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:39,625 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2023-11-23 16:00:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 16:00:39,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 16:00:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:39,627 INFO L225 Difference]: With dead ends: 60 [2023-11-23 16:00:39,627 INFO L226 Difference]: Without dead ends: 59 [2023-11-23 16:00:39,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-23 16:00:39,628 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 18 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:39,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 60 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:39,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-23 16:00:39,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2023-11-23 16:00:39,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.3125) internal successors, (63), 52 states have internal predecessors, (63), 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) [2023-11-23 16:00:39,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2023-11-23 16:00:39,633 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 8 [2023-11-23 16:00:39,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:39,633 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2023-11-23 16:00:39,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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) [2023-11-23 16:00:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2023-11-23 16:00:39,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 16:00:39,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:39,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 16:00:39,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:39,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 16:00:39,854 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:39,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash 327343047, now seen corresponding path program 1 times [2023-11-23 16:00:39,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:39,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422212061] [2023-11-23 16:00:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:39,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:39,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:39,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422212061] [2023-11-23 16:00:39,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422212061] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:39,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392435887] [2023-11-23 16:00:39,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:39,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:39,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:39,919 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) [2023-11-23 16:00:39,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 16:00:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:39,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 16:00:39,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:40,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:40,039 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:40,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392435887] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:40,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:40,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-23 16:00:40,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318461394] [2023-11-23 16:00:40,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:40,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 16:00:40,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:40,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 16:00:40,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-23 16:00:40,041 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2023-11-23 16:00:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:40,083 INFO L93 Difference]: Finished difference Result 89 states and 104 transitions. [2023-11-23 16:00:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 16:00:40,083 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-23 16:00:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:40,083 INFO L225 Difference]: With dead ends: 89 [2023-11-23 16:00:40,084 INFO L226 Difference]: Without dead ends: 53 [2023-11-23 16:00:40,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-23 16:00:40,084 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:40,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 84 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:40,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-23 16:00:40,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-23 16:00:40,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 52 states have internal predecessors, (59), 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) [2023-11-23 16:00:40,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2023-11-23 16:00:40,088 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 16 [2023-11-23 16:00:40,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:40,089 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2023-11-23 16:00:40,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 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) [2023-11-23 16:00:40,089 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2023-11-23 16:00:40,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 16:00:40,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:40,089 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1] [2023-11-23 16:00:40,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:40,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:40,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:40,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:40,323 INFO L85 PathProgramCache]: Analyzing trace with hash -30391645, now seen corresponding path program 2 times [2023-11-23 16:00:40,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:40,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468709065] [2023-11-23 16:00:40,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:40,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 16:00:40,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:40,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468709065] [2023-11-23 16:00:40,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468709065] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:40,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429263996] [2023-11-23 16:00:40,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:00:40,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:40,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:40,474 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) [2023-11-23 16:00:40,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 16:00:40,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 16:00:40,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:40,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:00:40,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:40,557 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 16:00:40,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 16:00:40,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429263996] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:40,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:40,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 15 [2023-11-23 16:00:40,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915103644] [2023-11-23 16:00:40,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:40,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 16:00:40,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:40,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 16:00:40,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-11-23 16:00:40,591 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:40,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:40,697 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2023-11-23 16:00:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 16:00:40,698 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-23 16:00:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:40,698 INFO L225 Difference]: With dead ends: 63 [2023-11-23 16:00:40,698 INFO L226 Difference]: Without dead ends: 62 [2023-11-23 16:00:40,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2023-11-23 16:00:40,699 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 26 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:40,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 56 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:40,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-23 16:00:40,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 42. [2023-11-23 16:00:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 41 states have internal predecessors, (45), 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) [2023-11-23 16:00:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2023-11-23 16:00:40,703 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 17 [2023-11-23 16:00:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:40,704 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2023-11-23 16:00:40,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:00:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2023-11-23 16:00:40,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 16:00:40,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:40,704 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:40,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:40,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:40,917 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:40,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:40,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1168011323, now seen corresponding path program 1 times [2023-11-23 16:00:40,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:40,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158038168] [2023-11-23 16:00:40,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:40,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:41,005 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:41,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:41,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158038168] [2023-11-23 16:00:41,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158038168] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:41,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166400790] [2023-11-23 16:00:41,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:41,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:41,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:41,020 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) [2023-11-23 16:00:41,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 16:00:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:41,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 16:00:41,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:41,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:41,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166400790] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:41,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:41,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2023-11-23 16:00:41,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066047219] [2023-11-23 16:00:41,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:41,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-23 16:00:41,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:41,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-23 16:00:41,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2023-11-23 16:00:41,419 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 23 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 23 states have internal predecessors, (44), 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) [2023-11-23 16:00:41,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:41,603 INFO L93 Difference]: Finished difference Result 96 states and 109 transitions. [2023-11-23 16:00:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 16:00:41,605 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 23 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-11-23 16:00:41,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:41,606 INFO L225 Difference]: With dead ends: 96 [2023-11-23 16:00:41,606 INFO L226 Difference]: Without dead ends: 66 [2023-11-23 16:00:41,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=581, Unknown=0, NotChecked=0, Total=812 [2023-11-23 16:00:41,608 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 36 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:41,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 102 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:00:41,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-23 16:00:41,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-23 16:00:41,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.1129032258064515) internal successors, (69), 65 states have internal predecessors, (69), 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) [2023-11-23 16:00:41,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2023-11-23 16:00:41,634 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 24 [2023-11-23 16:00:41,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:41,634 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2023-11-23 16:00:41,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 23 states have internal predecessors, (44), 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) [2023-11-23 16:00:41,634 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2023-11-23 16:00:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 16:00:41,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:41,635 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:41,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:41,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:41,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:41,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1739734981, now seen corresponding path program 2 times [2023-11-23 16:00:41,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:41,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249997144] [2023-11-23 16:00:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:41,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:42,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:42,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249997144] [2023-11-23 16:00:42,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249997144] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:42,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575674980] [2023-11-23 16:00:42,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:00:42,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:42,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:42,114 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) [2023-11-23 16:00:42,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 16:00:42,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:00:42,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:42,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 16:00:42,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:42,589 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:42,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:43,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575674980] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:43,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:43,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 47 [2023-11-23 16:00:43,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606704881] [2023-11-23 16:00:43,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:43,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-11-23 16:00:43,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:43,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-11-23 16:00:43,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=1634, Unknown=0, NotChecked=0, Total=2162 [2023-11-23 16:00:43,093 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 47 states, 47 states have (on average 1.702127659574468) internal successors, (80), 47 states have internal predecessors, (80), 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) [2023-11-23 16:00:43,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:43,391 INFO L93 Difference]: Finished difference Result 156 states and 177 transitions. [2023-11-23 16:00:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 16:00:43,392 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 1.702127659574468) internal successors, (80), 47 states have internal predecessors, (80), 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 36 [2023-11-23 16:00:43,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:43,392 INFO L225 Difference]: With dead ends: 156 [2023-11-23 16:00:43,392 INFO L226 Difference]: Without dead ends: 114 [2023-11-23 16:00:43,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=943, Invalid=2717, Unknown=0, NotChecked=0, Total=3660 [2023-11-23 16:00:43,394 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 128 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:43,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 69 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 16:00:43,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-23 16:00:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-11-23 16:00:43,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 110 states have (on average 1.0636363636363637) internal successors, (117), 113 states have internal predecessors, (117), 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) [2023-11-23 16:00:43,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 117 transitions. [2023-11-23 16:00:43,405 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 117 transitions. Word has length 36 [2023-11-23 16:00:43,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:43,405 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 117 transitions. [2023-11-23 16:00:43,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 1.702127659574468) internal successors, (80), 47 states have internal predecessors, (80), 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) [2023-11-23 16:00:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 117 transitions. [2023-11-23 16:00:43,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 16:00:43,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:43,410 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:43,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:43,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:43,623 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:43,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:43,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1547984955, now seen corresponding path program 3 times [2023-11-23 16:00:43,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:43,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302005481] [2023-11-23 16:00:43,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:43,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:44,355 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 1 proven. 330 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 16:00:44,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:44,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302005481] [2023-11-23 16:00:44,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302005481] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:44,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215469721] [2023-11-23 16:00:44,356 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 16:00:44,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:44,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:44,357 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) [2023-11-23 16:00:44,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 16:00:44,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 16:00:44,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:44,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:00:44,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-23 16:00:44,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:00:44,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215469721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:00:44,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:00:44,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 36 [2023-11-23 16:00:44,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36795717] [2023-11-23 16:00:44,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:00:44,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 16:00:44,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:44,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 16:00:44,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2023-11-23 16:00:44,458 INFO L87 Difference]: Start difference. First operand 114 states and 117 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-23 16:00:44,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:44,497 INFO L93 Difference]: Finished difference Result 114 states and 117 transitions. [2023-11-23 16:00:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:00:44,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 60 [2023-11-23 16:00:44,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:44,498 INFO L225 Difference]: With dead ends: 114 [2023-11-23 16:00:44,498 INFO L226 Difference]: Without dead ends: 113 [2023-11-23 16:00:44,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2023-11-23 16:00:44,499 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:44,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 33 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:00:44,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-23 16:00:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-11-23 16:00:44,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.0545454545454545) internal successors, (116), 112 states have internal predecessors, (116), 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) [2023-11-23 16:00:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 116 transitions. [2023-11-23 16:00:44,506 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 116 transitions. Word has length 60 [2023-11-23 16:00:44,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:44,506 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 116 transitions. [2023-11-23 16:00:44,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2023-11-23 16:00:44,507 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 116 transitions. [2023-11-23 16:00:44,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 16:00:44,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:44,507 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:44,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 16:00:44,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:44,720 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:44,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:44,720 INFO L85 PathProgramCache]: Analyzing trace with hash -742893258, now seen corresponding path program 1 times [2023-11-23 16:00:44,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:44,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44222738] [2023-11-23 16:00:44,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:44,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-23 16:00:44,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:44,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44222738] [2023-11-23 16:00:44,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44222738] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:44,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904855222] [2023-11-23 16:00:44,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:44,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:44,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:44,848 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) [2023-11-23 16:00:44,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 16:00:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:44,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-23 16:00:44,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 1 proven. 330 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:00:45,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 1 proven. 330 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 16:00:46,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904855222] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:46,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:46,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 68 [2023-11-23 16:00:46,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33437788] [2023-11-23 16:00:46,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:46,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2023-11-23 16:00:46,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:46,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2023-11-23 16:00:46,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1066, Invalid=3490, Unknown=0, NotChecked=0, Total=4556 [2023-11-23 16:00:46,536 INFO L87 Difference]: Start difference. First operand 113 states and 116 transitions. Second operand has 68 states, 68 states have (on average 1.8088235294117647) internal successors, (123), 68 states have internal predecessors, (123), 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) [2023-11-23 16:00:49,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:00:49,039 INFO L93 Difference]: Finished difference Result 278 states and 316 transitions. [2023-11-23 16:00:49,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2023-11-23 16:00:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 1.8088235294117647) internal successors, (123), 68 states have internal predecessors, (123), 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 61 [2023-11-23 16:00:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:00:49,040 INFO L225 Difference]: With dead ends: 278 [2023-11-23 16:00:49,040 INFO L226 Difference]: Without dead ends: 213 [2023-11-23 16:00:49,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6908 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=6140, Invalid=19620, Unknown=0, NotChecked=0, Total=25760 [2023-11-23 16:00:49,047 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 450 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:00:49,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 97 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:00:49,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-11-23 16:00:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2023-11-23 16:00:49,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 210 states have (on average 1.0285714285714285) internal successors, (216), 212 states have internal predecessors, (216), 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) [2023-11-23 16:00:49,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 216 transitions. [2023-11-23 16:00:49,082 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 216 transitions. Word has length 61 [2023-11-23 16:00:49,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:00:49,082 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 216 transitions. [2023-11-23 16:00:49,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 1.8088235294117647) internal successors, (123), 68 states have internal predecessors, (123), 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) [2023-11-23 16:00:49,083 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 216 transitions. [2023-11-23 16:00:49,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-23 16:00:49,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:00:49,084 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:00:49,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-23 16:00:49,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 16:00:49,296 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:00:49,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:00:49,296 INFO L85 PathProgramCache]: Analyzing trace with hash 889655537, now seen corresponding path program 2 times [2023-11-23 16:00:49,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:00:49,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611970619] [2023-11-23 16:00:49,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:00:49,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:00:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:00:51,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1439 backedges. 1 proven. 1426 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 16:00:51,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:00:51,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611970619] [2023-11-23 16:00:51,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611970619] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:00:51,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975623792] [2023-11-23 16:00:51,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:00:51,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:00:51,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:00:51,389 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) [2023-11-23 16:00:51,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 16:00:51,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:00:51,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:00:51,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-23 16:00:51,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:00:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1439 backedges. 1 proven. 1426 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 16:00:54,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:00:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1439 backedges. 1 proven. 1426 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 16:00:59,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975623792] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:00:59,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:00:59,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 191 [2023-11-23 16:00:59,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944362082] [2023-11-23 16:00:59,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:00:59,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2023-11-23 16:00:59,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:00:59,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2023-11-23 16:00:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6334, Invalid=29956, Unknown=0, NotChecked=0, Total=36290 [2023-11-23 16:00:59,111 INFO L87 Difference]: Start difference. First operand 213 states and 216 transitions. Second operand has 191 states, 191 states have (on average 1.549738219895288) internal successors, (296), 191 states have internal predecessors, (296), 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) [2023-11-23 16:01:00,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:01:00,401 INFO L93 Difference]: Finished difference Result 340 states and 347 transitions. [2023-11-23 16:01:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-23 16:01:00,405 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 191 states have (on average 1.549738219895288) internal successors, (296), 191 states have internal predecessors, (296), 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 113 [2023-11-23 16:01:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:01:00,406 INFO L225 Difference]: With dead ends: 340 [2023-11-23 16:01:00,406 INFO L226 Difference]: Without dead ends: 223 [2023-11-23 16:01:00,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14727 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=9930, Invalid=39132, Unknown=0, NotChecked=0, Total=49062 [2023-11-23 16:01:00,410 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 255 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 16:01:00,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 176 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 16:01:00,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-23 16:01:00,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2023-11-23 16:01:00,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 216 states have (on average 1.0277777777777777) internal successors, (222), 218 states have internal predecessors, (222), 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) [2023-11-23 16:01:00,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 222 transitions. [2023-11-23 16:01:00,419 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 222 transitions. Word has length 113 [2023-11-23 16:01:00,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:01:00,419 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 222 transitions. [2023-11-23 16:01:00,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 191 states have (on average 1.549738219895288) internal successors, (296), 191 states have internal predecessors, (296), 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) [2023-11-23 16:01:00,420 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 222 transitions. [2023-11-23 16:01:00,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 16:01:00,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:01:00,421 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 16:01:00,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 16:01:00,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 16:01:00,628 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:01:00,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:01:00,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2144199345, now seen corresponding path program 3 times [2023-11-23 16:01:00,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:01:00,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477594093] [2023-11-23 16:01:00,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:01:00,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:01:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:01:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2023-11-23 16:01:00,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:01:00,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477594093] [2023-11-23 16:01:00,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477594093] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:01:00,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936627130] [2023-11-23 16:01:00,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 16:01:00,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:01:00,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:01:00,780 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) [2023-11-23 16:01:00,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 16:01:00,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 16:01:00,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:01:00,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 16:01:00,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:01:00,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1525 trivial. 0 not checked. [2023-11-23 16:01:00,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:01:00,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936627130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:01:00,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:01:00,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-23 16:01:00,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321122827] [2023-11-23 16:01:00,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:01:00,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 16:01:00,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:01:00,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 16:01:00,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-23 16:01:00,901 INFO L87 Difference]: Start difference. First operand 219 states and 222 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-11-23 16:01:00,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:01:00,937 INFO L93 Difference]: Finished difference Result 219 states and 222 transitions. [2023-11-23 16:01:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 16:01:00,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 116 [2023-11-23 16:01:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:01:00,938 INFO L225 Difference]: With dead ends: 219 [2023-11-23 16:01:00,938 INFO L226 Difference]: Without dead ends: 205 [2023-11-23 16:01:00,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:01:00,939 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:01:00,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 16 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:01:00,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-23 16:01:00,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-11-23 16:01:00,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 203 states have (on average 1.019704433497537) internal successors, (207), 204 states have internal predecessors, (207), 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) [2023-11-23 16:01:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 207 transitions. [2023-11-23 16:01:00,949 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 207 transitions. Word has length 116 [2023-11-23 16:01:00,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:01:00,949 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 207 transitions. [2023-11-23 16:01:00,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2023-11-23 16:01:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 207 transitions. [2023-11-23 16:01:00,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-11-23 16:01:00,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:01:00,952 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 16:01:00,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-23 16:01:01,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 16:01:01,162 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:01:01,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:01:01,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1206088349, now seen corresponding path program 2 times [2023-11-23 16:01:01,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:01:01,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816500731] [2023-11-23 16:01:01,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:01:01,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:01:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:01:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6180 backedges. 0 proven. 3140 refuted. 0 times theorem prover too weak. 3040 trivial. 0 not checked. [2023-11-23 16:01:01,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:01:01,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816500731] [2023-11-23 16:01:01,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816500731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:01:01,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639038546] [2023-11-23 16:01:01,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 16:01:01,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:01:01,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:01:01,335 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) [2023-11-23 16:01:01,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 16:01:01,489 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 16:01:01,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 16:01:01,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 16:01:01,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:01:01,600 INFO L134 CoverageAnalysis]: Checked inductivity of 6180 backedges. 3140 proven. 0 refuted. 0 times theorem prover too weak. 3040 trivial. 0 not checked. [2023-11-23 16:01:01,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 16:01:01,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639038546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 16:01:01,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 16:01:01,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2023-11-23 16:01:01,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375088457] [2023-11-23 16:01:01,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 16:01:01,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 16:01:01,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:01:01,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 16:01:01,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-23 16:01:01,602 INFO L87 Difference]: Start difference. First operand 205 states and 207 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:01:01,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:01:01,628 INFO L93 Difference]: Finished difference Result 205 states and 207 transitions. [2023-11-23 16:01:01,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 16:01:01,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2023-11-23 16:01:01,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:01:01,629 INFO L225 Difference]: With dead ends: 205 [2023-11-23 16:01:01,629 INFO L226 Difference]: Without dead ends: 204 [2023-11-23 16:01:01,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-23 16:01:01,631 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9 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 [2023-11-23 16:01:01,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:01:01,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-23 16:01:01,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-11-23 16:01:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 1.0147783251231528) internal successors, (206), 203 states have internal predecessors, (206), 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) [2023-11-23 16:01:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 206 transitions. [2023-11-23 16:01:01,646 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 206 transitions. Word has length 202 [2023-11-23 16:01:01,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:01:01,646 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 206 transitions. [2023-11-23 16:01:01,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 16:01:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 206 transitions. [2023-11-23 16:01:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-23 16:01:01,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 16:01:01,648 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 2, 2, 2, 2, 1, 1, 1] [2023-11-23 16:01:01,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 16:01:01,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 16:01:01,856 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 16:01:01,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 16:01:01,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1265966779, now seen corresponding path program 1 times [2023-11-23 16:01:01,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 16:01:01,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597719963] [2023-11-23 16:01:01,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:01:01,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 16:01:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:01:01,994 INFO L134 CoverageAnalysis]: Checked inductivity of 6181 backedges. 0 proven. 3141 refuted. 0 times theorem prover too weak. 3040 trivial. 0 not checked. [2023-11-23 16:01:01,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 16:01:01,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597719963] [2023-11-23 16:01:01,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597719963] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 16:01:01,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363983161] [2023-11-23 16:01:01,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 16:01:01,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 16:01:01,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 16:01:02,005 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) [2023-11-23 16:01:02,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 16:01:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 16:01:02,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 16:01:02,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 16:01:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 6181 backedges. 0 proven. 3141 refuted. 0 times theorem prover too weak. 3040 trivial. 0 not checked. [2023-11-23 16:01:02,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 16:01:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 6181 backedges. 0 proven. 3141 refuted. 0 times theorem prover too weak. 3040 trivial. 0 not checked. [2023-11-23 16:01:02,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363983161] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 16:01:02,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 16:01:02,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-11-23 16:01:02,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785143089] [2023-11-23 16:01:02,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 16:01:02,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 16:01:02,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 16:01:02,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 16:01:02,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-23 16:01:02,581 INFO L87 Difference]: Start difference. First operand 204 states and 206 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2023-11-23 16:01:02,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 16:01:02,636 INFO L93 Difference]: Finished difference Result 306 states and 310 transitions. [2023-11-23 16:01:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 16:01:02,637 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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 203 [2023-11-23 16:01:02,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 16:01:02,637 INFO L225 Difference]: With dead ends: 306 [2023-11-23 16:01:02,637 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 16:01:02,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-11-23 16:01:02,638 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 16:01:02,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 16:01:02,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 16:01:02,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 16:01:02,639 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) [2023-11-23 16:01:02,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 16:01:02,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 203 [2023-11-23 16:01:02,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 16:01:02,639 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 16:01:02,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2023-11-23 16:01:02,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 16:01:02,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 16:01:02,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-23 16:01:02,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-23 16:01:02,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-23 16:01:02,642 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-23 16:01:02,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-23 16:01:02,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-23 16:01:02,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 16:01:02,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 16:01:02,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 16:01:04,134 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-11-23 16:01:04,135 INFO L899 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2023-11-23 16:01:04,135 INFO L899 garLoopResultBuilder]: For program point L15-4(line 15) no Hoare annotation was computed. [2023-11-23 16:01:04,135 INFO L895 garLoopResultBuilder]: At program point L15-5(lines 15 17) the Hoare annotation is: (let ((.cse0 (<= (mod |ULTIMATE.start_main_~i~1#1| 4294967296) 31)) (.cse1 (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648))) (.cse2 (<= |ULTIMATE.start_main_~i~1#1| 2147483645))) (or (and .cse0 (= 32 |ULTIMATE.start_foo_~size#1|) .cse1 (= |ULTIMATE.start_foo_~i~0#1| 0) .cse2) (and .cse0 .cse1 (<= |ULTIMATE.start_foo_~size#1| 32) (<= 1 |ULTIMATE.start_foo_~i~0#1|) .cse2))) [2023-11-23 16:01:04,135 INFO L899 garLoopResultBuilder]: For program point L15-6(lines 15 17) no Hoare annotation was computed. [2023-11-23 16:01:04,135 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 21 35) no Hoare annotation was computed. [2023-11-23 16:01:04,136 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-11-23 16:01:04,136 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-23 16:01:04,136 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-11-23 16:01:04,136 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 16:01:04,136 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-23 16:01:04,136 INFO L899 garLoopResultBuilder]: For program point L29-3(line 29) no Hoare annotation was computed. [2023-11-23 16:01:04,136 INFO L899 garLoopResultBuilder]: For program point L29-4(line 29) no Hoare annotation was computed. [2023-11-23 16:01:04,136 INFO L895 garLoopResultBuilder]: At program point L29-5(lines 29 33) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648))) [2023-11-23 16:01:04,137 INFO L899 garLoopResultBuilder]: For program point L29-6(lines 29 33) no Hoare annotation was computed. [2023-11-23 16:01:04,137 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2023-11-23 16:01:04,137 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2023-11-23 16:01:04,137 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~1#1| 2147483646) (<= 0 (+ |ULTIMATE.start_main_~i~1#1| 2147483648))) [2023-11-23 16:01:04,137 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 28) no Hoare annotation was computed. [2023-11-23 16:01:04,137 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 16:01:04,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-11-23 16:01:04,137 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2023-11-23 16:01:04,139 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-23 16:01:04,141 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 16:01:04,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:01:04 BoogieIcfgContainer [2023-11-23 16:01:04,149 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 16:01:04,150 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 16:01:04,150 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 16:01:04,150 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 16:01:04,150 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:00:37" (3/4) ... [2023-11-23 16:01:04,151 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 16:01:04,156 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-23 16:01:04,156 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 16:01:04,156 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 16:01:04,157 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 16:01:04,234 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-23 16:01:04,235 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2023-11-23 16:01:04,235 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 16:01:04,235 INFO L158 Benchmark]: Toolchain (without parser) took 26873.83ms. Allocated memory was 174.1MB in the beginning and 398.5MB in the end (delta: 224.4MB). Free memory was 103.0MB in the beginning and 141.1MB in the end (delta: -38.1MB). Peak memory consumption was 184.9MB. Max. memory is 16.1GB. [2023-11-23 16:01:04,235 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 174.1MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 16:01:04,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.47ms. Allocated memory is still 174.1MB. Free memory was 102.8MB in the beginning and 139.7MB in the end (delta: -37.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 16:01:04,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.88ms. Allocated memory is still 174.1MB. Free memory was 139.7MB in the beginning and 138.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 16:01:04,236 INFO L158 Benchmark]: Boogie Preprocessor took 33.62ms. Allocated memory is still 174.1MB. Free memory was 138.3MB in the beginning and 136.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 16:01:04,236 INFO L158 Benchmark]: RCFGBuilder took 360.18ms. Allocated memory is still 174.1MB. Free memory was 136.3MB in the beginning and 123.7MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 16:01:04,236 INFO L158 Benchmark]: TraceAbstraction took 26159.12ms. Allocated memory was 174.1MB in the beginning and 398.5MB in the end (delta: 224.4MB). Free memory was 123.0MB in the beginning and 145.3MB in the end (delta: -22.3MB). Peak memory consumption was 220.0MB. Max. memory is 16.1GB. [2023-11-23 16:01:04,237 INFO L158 Benchmark]: Witness Printer took 85.09ms. Allocated memory is still 398.5MB. Free memory was 145.3MB in the beginning and 141.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 16:01:04,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 174.1MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.47ms. Allocated memory is still 174.1MB. Free memory was 102.8MB in the beginning and 139.7MB in the end (delta: -37.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.88ms. Allocated memory is still 174.1MB. Free memory was 139.7MB in the beginning and 138.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.62ms. Allocated memory is still 174.1MB. Free memory was 138.3MB in the beginning and 136.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 360.18ms. Allocated memory is still 174.1MB. Free memory was 136.3MB in the beginning and 123.7MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 26159.12ms. Allocated memory was 174.1MB in the beginning and 398.5MB in the end (delta: 224.4MB). Free memory was 123.0MB in the beginning and 145.3MB in the end (delta: -22.3MB). Peak memory consumption was 220.0MB. Max. memory is 16.1GB. * Witness Printer took 85.09ms. Allocated memory is still 398.5MB. Free memory was 145.3MB in the beginning and 141.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: 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 1 procedures, 22 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 26.1s, OverallIterations: 16, TraceHistogramMax: 64, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 998 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 998 mSDsluCounter, 905 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 727 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1234 IncrementalHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 178 mSDtfsCounter, 1234 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1677 GetRequests, 1078 SyntacticMatches, 0 SemanticMatches, 599 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22913 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=13, InterpolantAutomatonStates: 314, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 45 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 109 NumberOfFragments, 59 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4011 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1981 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 15.4s InterpolantComputationTime, 1749 NumberOfCodeBlocks, 1592 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 2191 ConstructedInterpolants, 0 QuantifiedInterpolants, 7273 SizeOfPredicates, 85 NumberOfNonLiveVariables, 2854 ConjunctsInSsa, 168 ConjunctsInUnsatCore, 36 InterpolantComputations, 8 PerfectInterpolantSequences, 22213/40366 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((((((i % 4294967296) <= 31) && (32 == size)) && (0 <= (i + 2147483648))) && (i == 0)) && (i <= 2147483645)) || ((((((i % 4294967296) <= 31) && (0 <= (i + 2147483648))) && (size <= 32)) && (1 <= i)) && (i <= 2147483645))) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((i <= 2147483646) && (0 <= (i + 2147483648))) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((i <= 2147483647) && (0 <= (i + 2147483648))) RESULT: Ultimate proved your program to be correct! [2023-11-23 16:01:04,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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