./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/termination-15/array15_alloca.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/termination-15/array15_alloca.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 0436039f68530446bcea8cc1e480b55f77a03960004f6d6c93b2cc059992d2f7 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:04:53,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:04:53,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-04-29 11:04:53,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:04:53,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:04:53,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:04:53,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:04:53,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:04:53,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 11:04:53,811 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 11:04:53,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:04:53,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:04:53,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:04:53,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-29 11:04:53,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:04:53,813 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:04:53,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:04:53,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:04:53,813 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0436039f68530446bcea8cc1e480b55f77a03960004f6d6c93b2cc059992d2f7 [2025-04-29 11:04:53,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:04:54,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:04:54,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:04:54,003 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:04:54,004 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:04:54,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/termination-15/array15_alloca.c [2025-04-29 11:04:55,293 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63154828/9f043dabf20b44ee9e002e32604937a2/FLAG08476471c [2025-04-29 11:04:55,504 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:04:55,505 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/termination-15/array15_alloca.c [2025-04-29 11:04:55,506 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:04:55,506 WARN L117 ultiparseSymbolTable]: System include alloca.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:04:55,515 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63154828/9f043dabf20b44ee9e002e32604937a2/FLAG08476471c [2025-04-29 11:04:56,343 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e63154828/9f043dabf20b44ee9e002e32604937a2 [2025-04-29 11:04:56,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:04:56,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:04:56,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:04:56,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:04:56,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:04:56,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f340086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56, skipping insertion in model container [2025-04-29 11:04:56,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,361 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:04:56,502 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:04:56,510 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:04:56,533 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:04:56,541 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:04:56,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56 WrapperNode [2025-04-29 11:04:56,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:04:56,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:04:56,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:04:56,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:04:56,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,562 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2025-04-29 11:04:56,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:04:56,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:04:56,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:04:56,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:04:56,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,583 INFO L175 MemorySlicer]: Split 4 memory accesses to 1 slices as follows [4]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2025-04-29 11:04:56,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,586 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:04:56,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:04:56,594 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:04:56,594 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:04:56,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (1/1) ... [2025-04-29 11:04:56,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:04:56,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:56,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 11:04:56,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-29 11:04:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-29 11:04:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:04:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:04:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-29 11:04:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-29 11:04:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-29 11:04:56,677 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:04:56,678 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:04:56,766 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2025-04-29 11:04:56,766 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:04:56,771 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:04:56,772 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:04:56,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:04:56 BoogieIcfgContainer [2025-04-29 11:04:56,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:04:56,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:04:56,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:04:56,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:04:56,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:04:56" (1/3) ... [2025-04-29 11:04:56,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9dc96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:04:56, skipping insertion in model container [2025-04-29 11:04:56,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:04:56" (2/3) ... [2025-04-29 11:04:56,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9dc96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:04:56, skipping insertion in model container [2025-04-29 11:04:56,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:04:56" (3/3) ... [2025-04-29 11:04:56,781 INFO L128 eAbstractionObserver]: Analyzing ICFG array15_alloca.c [2025-04-29 11:04:56,792 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:04:56,794 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array15_alloca.c that has 1 procedures, 25 locations, 30 edges, 1 initial locations, 2 loop locations, and 6 error locations. [2025-04-29 11:04:56,832 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:04:56,841 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16a8dd48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:04:56,841 INFO L341 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-04-29 11:04:56,844 INFO L278 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 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) [2025-04-29 11:04:56,847 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-04-29 11:04:56,847 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:56,847 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:56,847 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:56,851 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:56,852 INFO L85 PathProgramCache]: Analyzing trace with hash -592160149, now seen corresponding path program 1 times [2025-04-29 11:04:56,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:56,858 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514536453] [2025-04-29 11:04:56,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:56,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:56,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-29 11:04:56,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-29 11:04:56,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:56,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:57,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:57,027 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514536453] [2025-04-29 11:04:57,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514536453] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:57,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:04:57,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:04:57,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692813349] [2025-04-29 11:04:57,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:57,031 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:04:57,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:57,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:04:57,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:57,047 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 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 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:04:57,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:57,085 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2025-04-29 11:04:57,085 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:04:57,086 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-04-29 11:04:57,087 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:57,091 INFO L225 Difference]: With dead ends: 32 [2025-04-29 11:04:57,091 INFO L226 Difference]: Without dead ends: 27 [2025-04-29 11:04:57,093 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:57,094 INFO L437 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:57,095 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 65 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:57,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-04-29 11:04:57,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-04-29 11:04:57,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 26 states have internal predecessors, (33), 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) [2025-04-29 11:04:57,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2025-04-29 11:04:57,115 INFO L79 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 9 [2025-04-29 11:04:57,115 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:57,115 INFO L485 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2025-04-29 11:04:57,115 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:04:57,115 INFO L278 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2025-04-29 11:04:57,115 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-04-29 11:04:57,116 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:57,116 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:57,116 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:04:57,116 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:57,116 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:57,117 INFO L85 PathProgramCache]: Analyzing trace with hash -591758996, now seen corresponding path program 1 times [2025-04-29 11:04:57,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:57,117 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928177506] [2025-04-29 11:04:57,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:57,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:57,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-29 11:04:57,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-29 11:04:57,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:57,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:57,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:57,188 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928177506] [2025-04-29 11:04:57,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928177506] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:57,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:04:57,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-29 11:04:57,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963328267] [2025-04-29 11:04:57,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:57,189 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:04:57,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:57,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:04:57,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:57,189 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:04:57,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:57,211 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2025-04-29 11:04:57,212 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:04:57,212 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-04-29 11:04:57,212 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:57,212 INFO L225 Difference]: With dead ends: 37 [2025-04-29 11:04:57,212 INFO L226 Difference]: Without dead ends: 27 [2025-04-29 11:04:57,212 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:57,213 INFO L437 NwaCegarLoop]: 20 mSDtfsCounter, 27 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:57,213 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 35 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:57,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-04-29 11:04:57,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-04-29 11:04:57,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 26 states have internal predecessors, (32), 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) [2025-04-29 11:04:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2025-04-29 11:04:57,218 INFO L79 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 9 [2025-04-29 11:04:57,218 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:57,218 INFO L485 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2025-04-29 11:04:57,218 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:04:57,218 INFO L278 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2025-04-29 11:04:57,218 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-04-29 11:04:57,219 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:57,219 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:57,219 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:04:57,219 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:57,221 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:57,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1105228629, now seen corresponding path program 1 times [2025-04-29 11:04:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:57,221 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858405245] [2025-04-29 11:04:57,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:57,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:57,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-29 11:04:57,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-29 11:04:57,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:57,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:57,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:57,331 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858405245] [2025-04-29 11:04:57,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858405245] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:04:57,331 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513018092] [2025-04-29 11:04:57,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:57,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:57,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:57,335 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) [2025-04-29 11:04:57,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-29 11:04:57,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-29 11:04:57,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-29 11:04:57,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:57,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:57,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-29 11:04:57,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:04:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:57,468 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:04:57,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513018092] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:57,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-29 11:04:57,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2025-04-29 11:04:57,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367256810] [2025-04-29 11:04:57,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:57,469 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:04:57,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:57,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:04:57,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:04:57,472 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2025-04-29 11:04:57,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:57,514 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2025-04-29 11:04:57,514 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:04:57,515 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-04-29 11:04:57,515 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:57,515 INFO L225 Difference]: With dead ends: 62 [2025-04-29 11:04:57,515 INFO L226 Difference]: Without dead ends: 45 [2025-04-29 11:04:57,515 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-04-29 11:04:57,516 INFO L437 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:57,516 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 70 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:57,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-04-29 11:04:57,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2025-04-29 11:04:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 34 states have internal predecessors, (41), 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) [2025-04-29 11:04:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2025-04-29 11:04:57,519 INFO L79 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 14 [2025-04-29 11:04:57,519 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:57,519 INFO L485 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2025-04-29 11:04:57,519 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2025-04-29 11:04:57,519 INFO L278 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2025-04-29 11:04:57,520 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-04-29 11:04:57,520 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:57,520 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:57,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-04-29 11:04:57,720 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:57,720 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:57,721 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:57,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1105629782, now seen corresponding path program 1 times [2025-04-29 11:04:57,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:57,721 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901817973] [2025-04-29 11:04:57,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:57,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:57,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-29 11:04:57,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-29 11:04:57,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:57,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-29 11:04:57,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:57,769 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901817973] [2025-04-29 11:04:57,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901817973] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:57,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:04:57,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:04:57,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576609951] [2025-04-29 11:04:57,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:57,769 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:04:57,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:57,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:04:57,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:57,770 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-04-29 11:04:57,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:57,794 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2025-04-29 11:04:57,794 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:04:57,794 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-04-29 11:04:57,794 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:57,795 INFO L225 Difference]: With dead ends: 41 [2025-04-29 11:04:57,795 INFO L226 Difference]: Without dead ends: 39 [2025-04-29 11:04:57,795 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:57,795 INFO L437 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:57,796 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 57 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:57,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-04-29 11:04:57,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2025-04-29 11:04:57,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.393939393939394) internal successors, (46), 38 states have internal predecessors, (46), 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) [2025-04-29 11:04:57,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2025-04-29 11:04:57,802 INFO L79 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 14 [2025-04-29 11:04:57,802 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:57,802 INFO L485 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2025-04-29 11:04:57,802 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-04-29 11:04:57,802 INFO L278 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2025-04-29 11:04:57,803 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-04-29 11:04:57,803 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:57,803 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:57,803 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:04:57,803 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:57,803 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:57,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1105629974, now seen corresponding path program 1 times [2025-04-29 11:04:57,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:57,803 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773197530] [2025-04-29 11:04:57,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:57,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:57,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-29 11:04:57,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-29 11:04:57,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:57,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-29 11:04:57,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:57,859 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773197530] [2025-04-29 11:04:57,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773197530] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:57,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:04:57,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:04:57,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710339294] [2025-04-29 11:04:57,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:57,860 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:04:57,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:57,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:04:57,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:57,860 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-04-29 11:04:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:57,882 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2025-04-29 11:04:57,882 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:04:57,882 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-04-29 11:04:57,883 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:57,883 INFO L225 Difference]: With dead ends: 43 [2025-04-29 11:04:57,884 INFO L226 Difference]: Without dead ends: 41 [2025-04-29 11:04:57,884 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:57,884 INFO L437 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:57,884 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 57 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:57,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2025-04-29 11:04:57,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2025-04-29 11:04:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 40 states have internal predecessors, (48), 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) [2025-04-29 11:04:57,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2025-04-29 11:04:57,887 INFO L79 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 14 [2025-04-29 11:04:57,887 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:57,887 INFO L485 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2025-04-29 11:04:57,890 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-04-29 11:04:57,890 INFO L278 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2025-04-29 11:04:57,890 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-04-29 11:04:57,890 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:57,890 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:57,890 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:04:57,891 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:57,891 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:57,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1363394067, now seen corresponding path program 1 times [2025-04-29 11:04:57,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:57,891 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809945784] [2025-04-29 11:04:57,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:57,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:57,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-29 11:04:57,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-29 11:04:57,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:57,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:57,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:57,987 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809945784] [2025-04-29 11:04:57,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809945784] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:04:57,987 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142372731] [2025-04-29 11:04:57,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:57,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:57,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:57,989 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) [2025-04-29 11:04:57,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-29 11:04:58,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-29 11:04:58,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-29 11:04:58,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:58,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:58,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-29 11:04:58,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:04:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:58,052 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:04:58,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142372731] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:58,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-29 11:04:58,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-04-29 11:04:58,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142703607] [2025-04-29 11:04:58,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:58,052 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:04:58,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:58,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:04:58,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-04-29 11:04:58,053 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2025-04-29 11:04:58,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:58,085 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2025-04-29 11:04:58,085 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:04:58,085 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-04-29 11:04:58,085 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:58,086 INFO L225 Difference]: With dead ends: 41 [2025-04-29 11:04:58,086 INFO L226 Difference]: Without dead ends: 40 [2025-04-29 11:04:58,086 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-04-29 11:04:58,086 INFO L437 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:58,086 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 68 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:58,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2025-04-29 11:04:58,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2025-04-29 11:04:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 39 states have internal predecessors, (47), 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) [2025-04-29 11:04:58,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2025-04-29 11:04:58,091 INFO L79 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 14 [2025-04-29 11:04:58,091 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:58,091 INFO L485 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2025-04-29 11:04:58,091 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2025-04-29 11:04:58,091 INFO L278 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2025-04-29 11:04:58,091 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-04-29 11:04:58,091 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:58,091 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:58,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-29 11:04:58,291 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-04-29 11:04:58,292 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:58,292 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:58,292 INFO L85 PathProgramCache]: Analyzing trace with hash -684456824, now seen corresponding path program 1 times [2025-04-29 11:04:58,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:58,292 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268409527] [2025-04-29 11:04:58,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:58,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:58,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-29 11:04:58,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-29 11:04:58,301 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:58,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:58,338 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:58,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:58,338 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268409527] [2025-04-29 11:04:58,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268409527] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:04:58,338 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269814510] [2025-04-29 11:04:58,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:58,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:58,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:58,340 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) [2025-04-29 11:04:58,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-29 11:04:58,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-29 11:04:58,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-29 11:04:58,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:58,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:58,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-29 11:04:58,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:04:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:58,400 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:04:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:58,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269814510] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:04:58,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:04:58,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-29 11:04:58,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925371317] [2025-04-29 11:04:58,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:04:58,443 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-29 11:04:58,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:58,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-29 11:04:58,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-04-29 11:04:58,444 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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) [2025-04-29 11:04:58,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:58,490 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2025-04-29 11:04:58,491 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:04:58,491 INFO L79 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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 15 [2025-04-29 11:04:58,491 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:58,491 INFO L225 Difference]: With dead ends: 56 [2025-04-29 11:04:58,492 INFO L226 Difference]: Without dead ends: 55 [2025-04-29 11:04:58,492 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-04-29 11:04:58,492 INFO L437 NwaCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:58,492 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 89 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:58,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-04-29 11:04:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2025-04-29 11:04:58,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.36) internal successors, (68), 54 states have internal predecessors, (68), 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) [2025-04-29 11:04:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2025-04-29 11:04:58,501 INFO L79 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 15 [2025-04-29 11:04:58,501 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:58,501 INFO L485 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2025-04-29 11:04:58,502 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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) [2025-04-29 11:04:58,502 INFO L278 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2025-04-29 11:04:58,502 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-04-29 11:04:58,502 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:58,502 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:58,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-29 11:04:58,702 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:58,703 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:58,703 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:58,703 INFO L85 PathProgramCache]: Analyzing trace with hash -315937135, now seen corresponding path program 1 times [2025-04-29 11:04:58,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:58,703 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567932137] [2025-04-29 11:04:58,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:58,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:58,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-29 11:04:58,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-29 11:04:58,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:58,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:58,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-29 11:04:58,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:58,751 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567932137] [2025-04-29 11:04:58,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567932137] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:04:58,751 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231941440] [2025-04-29 11:04:58,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:58,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:58,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:58,753 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) [2025-04-29 11:04:58,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-29 11:04:58,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-29 11:04:58,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-29 11:04:58,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:58,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:58,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:04:58,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:04:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-29 11:04:58,822 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:04:58,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231941440] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:58,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-29 11:04:58,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-04-29 11:04:58,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998507132] [2025-04-29 11:04:58,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:58,823 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:04:58,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:58,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:04:58,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:04:58,823 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand has 5 states, 5 states have (on average 3.6) 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) [2025-04-29 11:04:58,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:58,849 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2025-04-29 11:04:58,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:04:58,849 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) 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 18 [2025-04-29 11:04:58,849 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:58,849 INFO L225 Difference]: With dead ends: 66 [2025-04-29 11:04:58,849 INFO L226 Difference]: Without dead ends: 53 [2025-04-29 11:04:58,850 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:04:58,850 INFO L437 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:58,850 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:58,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2025-04-29 11:04:58,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2025-04-29 11:04:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 52 states have internal predecessors, (65), 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) [2025-04-29 11:04:58,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2025-04-29 11:04:58,856 INFO L79 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 18 [2025-04-29 11:04:58,856 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:58,856 INFO L485 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2025-04-29 11:04:58,856 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) 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) [2025-04-29 11:04:58,856 INFO L278 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2025-04-29 11:04:58,856 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-04-29 11:04:58,856 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:58,856 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:58,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-29 11:04:59,062 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:59,062 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:59,062 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:59,062 INFO L85 PathProgramCache]: Analyzing trace with hash -138442357, now seen corresponding path program 1 times [2025-04-29 11:04:59,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:59,062 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638908579] [2025-04-29 11:04:59,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:59,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:59,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-29 11:04:59,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-29 11:04:59,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:59,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-29 11:04:59,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:59,095 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638908579] [2025-04-29 11:04:59,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638908579] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:59,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:04:59,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:04:59,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675484836] [2025-04-29 11:04:59,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:59,095 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:04:59,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:59,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:04:59,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:59,096 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2025-04-29 11:04:59,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:59,108 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2025-04-29 11:04:59,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:04:59,108 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 18 [2025-04-29 11:04:59,108 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:59,108 INFO L225 Difference]: With dead ends: 53 [2025-04-29 11:04:59,108 INFO L226 Difference]: Without dead ends: 52 [2025-04-29 11:04:59,110 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:59,110 INFO L437 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:59,110 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 50 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:59,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-04-29 11:04:59,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-04-29 11:04:59,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 51 states have internal predecessors, (64), 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) [2025-04-29 11:04:59,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2025-04-29 11:04:59,115 INFO L79 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 18 [2025-04-29 11:04:59,116 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:59,116 INFO L485 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2025-04-29 11:04:59,116 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2025-04-29 11:04:59,116 INFO L278 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2025-04-29 11:04:59,116 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-04-29 11:04:59,116 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:59,117 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:59,117 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-29 11:04:59,117 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:59,117 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:59,117 INFO L85 PathProgramCache]: Analyzing trace with hash -138442165, now seen corresponding path program 1 times [2025-04-29 11:04:59,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:59,117 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145352761] [2025-04-29 11:04:59,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:59,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:59,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-29 11:04:59,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-29 11:04:59,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:59,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-29 11:04:59,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:59,146 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145352761] [2025-04-29 11:04:59,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145352761] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:59,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:04:59,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-29 11:04:59,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695545046] [2025-04-29 11:04:59,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:59,147 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:04:59,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:59,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:04:59,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:59,148 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2025-04-29 11:04:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:59,163 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2025-04-29 11:04:59,163 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:04:59,163 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 18 [2025-04-29 11:04:59,163 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:59,163 INFO L225 Difference]: With dead ends: 53 [2025-04-29 11:04:59,163 INFO L226 Difference]: Without dead ends: 52 [2025-04-29 11:04:59,163 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:04:59,164 INFO L437 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:59,164 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 47 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:59,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-04-29 11:04:59,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2025-04-29 11:04:59,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.3125) internal successors, (63), 50 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) [2025-04-29 11:04:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2025-04-29 11:04:59,170 INFO L79 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 18 [2025-04-29 11:04:59,170 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:59,171 INFO L485 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2025-04-29 11:04:59,171 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2025-04-29 11:04:59,171 INFO L278 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2025-04-29 11:04:59,171 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-04-29 11:04:59,171 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:59,171 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:59,171 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-29 11:04:59,171 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:59,171 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:59,171 INFO L85 PathProgramCache]: Analyzing trace with hash 3254301, now seen corresponding path program 1 times [2025-04-29 11:04:59,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:59,171 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862816549] [2025-04-29 11:04:59,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:59,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:59,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-29 11:04:59,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-29 11:04:59,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:59,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-29 11:04:59,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:59,237 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862816549] [2025-04-29 11:04:59,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862816549] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:04:59,237 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218177020] [2025-04-29 11:04:59,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:59,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:59,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:59,240 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) [2025-04-29 11:04:59,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-29 11:04:59,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-29 11:04:59,281 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-29 11:04:59,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:59,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:59,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-29 11:04:59,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:04:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-29 11:04:59,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-29 11:04:59,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218177020] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:04:59,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-29 11:04:59,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2025-04-29 11:04:59,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745900354] [2025-04-29 11:04:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:04:59,340 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-29 11:04:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:59,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-29 11:04:59,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:04:59,340 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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) [2025-04-29 11:04:59,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:59,364 INFO L93 Difference]: Finished difference Result 64 states and 77 transitions. [2025-04-29 11:04:59,364 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-29 11:04:59,364 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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 19 [2025-04-29 11:04:59,365 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:59,365 INFO L225 Difference]: With dead ends: 64 [2025-04-29 11:04:59,365 INFO L226 Difference]: Without dead ends: 43 [2025-04-29 11:04:59,365 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-04-29 11:04:59,366 INFO L437 NwaCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:59,367 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:04:59,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2025-04-29 11:04:59,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2025-04-29 11:04:59,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.325) internal successors, (53), 42 states have internal predecessors, (53), 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) [2025-04-29 11:04:59,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2025-04-29 11:04:59,372 INFO L79 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 19 [2025-04-29 11:04:59,372 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:59,372 INFO L485 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2025-04-29 11:04:59,372 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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) [2025-04-29 11:04:59,373 INFO L278 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2025-04-29 11:04:59,373 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-04-29 11:04:59,373 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:59,373 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:59,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-29 11:04:59,573 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-04-29 11:04:59,574 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:04:59,574 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:04:59,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1585093601, now seen corresponding path program 1 times [2025-04-29 11:04:59,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:04:59,574 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754703888] [2025-04-29 11:04:59,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:59,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:04:59,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-29 11:04:59,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-29 11:04:59,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:59,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-29 11:04:59,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:04:59,639 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754703888] [2025-04-29 11:04:59,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754703888] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:04:59,639 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118492176] [2025-04-29 11:04:59,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:04:59,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:04:59,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:04:59,643 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) [2025-04-29 11:04:59,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-29 11:04:59,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-29 11:04:59,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-29 11:04:59,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:04:59,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:04:59,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-29 11:04:59,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:04:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:59,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:04:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:04:59,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118492176] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:04:59,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:04:59,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 15 [2025-04-29 11:04:59,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564134993] [2025-04-29 11:04:59,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:04:59,812 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-29 11:04:59,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:04:59,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-29 11:04:59,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2025-04-29 11:04:59,813 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 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) [2025-04-29 11:04:59,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:04:59,917 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2025-04-29 11:04:59,917 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-29 11:04:59,917 INFO L79 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 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 19 [2025-04-29 11:04:59,917 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:04:59,918 INFO L225 Difference]: With dead ends: 60 [2025-04-29 11:04:59,918 INFO L226 Difference]: Without dead ends: 47 [2025-04-29 11:04:59,918 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2025-04-29 11:04:59,918 INFO L437 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-29 11:04:59,918 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 77 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-29 11:04:59,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-04-29 11:04:59,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2025-04-29 11:04:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 46 states have internal predecessors, (57), 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) [2025-04-29 11:04:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2025-04-29 11:04:59,922 INFO L79 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 19 [2025-04-29 11:04:59,922 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:04:59,922 INFO L485 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2025-04-29 11:04:59,922 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 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) [2025-04-29 11:04:59,922 INFO L278 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2025-04-29 11:04:59,923 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-04-29 11:04:59,923 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:04:59,923 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:04:59,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-29 11:05:00,123 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:05:00,123 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:05:00,124 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:05:00,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1966518539, now seen corresponding path program 1 times [2025-04-29 11:05:00,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:05:00,124 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339490194] [2025-04-29 11:05:00,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:05:00,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:05:00,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-29 11:05:00,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-29 11:05:00,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:05:00,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:05:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-29 11:05:00,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:05:00,166 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339490194] [2025-04-29 11:05:00,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339490194] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:05:00,166 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900043402] [2025-04-29 11:05:00,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:05:00,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:05:00,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:05:00,168 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) [2025-04-29 11:05:00,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-29 11:05:00,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-29 11:05:00,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-29 11:05:00,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:05:00,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:05:00,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-29 11:05:00,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:05:00,227 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-29 11:05:00,227 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:05:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-29 11:05:00,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900043402] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:05:00,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:05:00,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-29 11:05:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344273328] [2025-04-29 11:05:00,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:05:00,253 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-29 11:05:00,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:05:00,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-29 11:05:00,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-04-29 11:05:00,253 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 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) [2025-04-29 11:05:00,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:05:00,285 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2025-04-29 11:05:00,285 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:05:00,285 INFO L79 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 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 [2025-04-29 11:05:00,285 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:05:00,285 INFO L225 Difference]: With dead ends: 60 [2025-04-29 11:05:00,285 INFO L226 Difference]: Without dead ends: 59 [2025-04-29 11:05:00,286 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-04-29 11:05:00,286 INFO L437 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:05:00,286 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:05:00,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2025-04-29 11:05:00,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2025-04-29 11:05:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 58 states have internal predecessors, (72), 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) [2025-04-29 11:05:00,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2025-04-29 11:05:00,290 INFO L79 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 24 [2025-04-29 11:05:00,290 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:05:00,290 INFO L485 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2025-04-29 11:05:00,290 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 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) [2025-04-29 11:05:00,290 INFO L278 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2025-04-29 11:05:00,290 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-04-29 11:05:00,290 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:05:00,290 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:05:00,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-29 11:05:00,491 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:05:00,491 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:05:00,491 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:05:00,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1631115952, now seen corresponding path program 1 times [2025-04-29 11:05:00,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:05:00,491 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854582375] [2025-04-29 11:05:00,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:05:00,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:05:00,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-29 11:05:00,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-29 11:05:00,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:05:00,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:05:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-04-29 11:05:00,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:05:00,554 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854582375] [2025-04-29 11:05:00,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854582375] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:05:00,554 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529982453] [2025-04-29 11:05:00,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:05:00,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:05:00,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:05:00,556 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) [2025-04-29 11:05:00,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-29 11:05:00,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-29 11:05:00,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-29 11:05:00,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:05:00,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:05:00,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-29 11:05:00,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:05:00,625 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-29 11:05:00,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:05:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-29 11:05:00,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529982453] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:05:00,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:05:00,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2025-04-29 11:05:00,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330973660] [2025-04-29 11:05:00,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:05:00,663 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-29 11:05:00,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:05:00,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-29 11:05:00,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-04-29 11:05:00,663 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:05:00,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:05:00,694 INFO L93 Difference]: Finished difference Result 72 states and 90 transitions. [2025-04-29 11:05:00,695 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-29 11:05:00,695 INFO L79 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2025-04-29 11:05:00,695 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:05:00,695 INFO L225 Difference]: With dead ends: 72 [2025-04-29 11:05:00,695 INFO L226 Difference]: Without dead ends: 70 [2025-04-29 11:05:00,696 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-04-29 11:05:00,696 INFO L437 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:05:00,696 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:05:00,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2025-04-29 11:05:00,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2025-04-29 11:05:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 61 states have internal predecessors, (76), 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) [2025-04-29 11:05:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2025-04-29 11:05:00,700 INFO L79 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 28 [2025-04-29 11:05:00,700 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:05:00,700 INFO L485 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2025-04-29 11:05:00,700 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:05:00,700 INFO L278 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2025-04-29 11:05:00,701 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-04-29 11:05:00,701 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:05:00,701 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2025-04-29 11:05:00,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-04-29 11:05:00,901 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-04-29 11:05:00,901 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:05:00,903 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:05:00,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1819499886, now seen corresponding path program 2 times [2025-04-29 11:05:00,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:05:00,903 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016755921] [2025-04-29 11:05:00,903 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:05:00,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:05:00,912 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-04-29 11:05:00,915 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 30 statements. [2025-04-29 11:05:00,916 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:05:00,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:05:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-04-29 11:05:00,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:05:00,941 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016755921] [2025-04-29 11:05:00,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016755921] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:05:00,941 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41606791] [2025-04-29 11:05:00,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:05:00,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:05:00,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:05:00,943 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) [2025-04-29 11:05:00,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-04-29 11:05:00,979 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-04-29 11:05:00,983 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 30 statements. [2025-04-29 11:05:00,983 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:05:00,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:05:00,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:05:00,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:05:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-04-29 11:05:01,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:05:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-04-29 11:05:01,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41606791] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:05:01,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:05:01,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2025-04-29 11:05:01,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731176172] [2025-04-29 11:05:01,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:05:01,058 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:05:01,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:05:01,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:05:01,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:05:01,059 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:05:01,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:05:01,081 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2025-04-29 11:05:01,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:05:01,082 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2025-04-29 11:05:01,082 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:05:01,083 INFO L225 Difference]: With dead ends: 62 [2025-04-29 11:05:01,083 INFO L226 Difference]: Without dead ends: 61 [2025-04-29 11:05:01,083 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:05:01,083 INFO L437 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:05:01,083 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 30 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:05:01,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-04-29 11:05:01,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 47. [2025-04-29 11:05:01,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 46 states have internal predecessors, (56), 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) [2025-04-29 11:05:01,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2025-04-29 11:05:01,088 INFO L79 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 30 [2025-04-29 11:05:01,089 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:05:01,089 INFO L485 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2025-04-29 11:05:01,089 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:05:01,089 INFO L278 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2025-04-29 11:05:01,089 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-04-29 11:05:01,089 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:05:01,089 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:05:01,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-04-29 11:05:01,289 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-04-29 11:05:01,290 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-29 11:05:01,290 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:05:01,290 INFO L85 PathProgramCache]: Analyzing trace with hash 262067206, now seen corresponding path program 2 times [2025-04-29 11:05:01,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:05:01,290 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753450078] [2025-04-29 11:05:01,290 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:05:01,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:05:01,295 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-04-29 11:05:01,296 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 36 statements. [2025-04-29 11:05:01,296 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:05:01,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:05:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-04-29 11:05:01,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:05:01,317 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753450078] [2025-04-29 11:05:01,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753450078] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-29 11:05:01,317 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231369321] [2025-04-29 11:05:01,317 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:05:01,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-29 11:05:01,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:05:01,318 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) [2025-04-29 11:05:01,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-04-29 11:05:01,354 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-04-29 11:05:01,358 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 36 statements. [2025-04-29 11:05:01,358 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:05:01,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:05:01,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-29 11:05:01,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-29 11:05:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-04-29 11:05:01,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-29 11:05:01,433 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-04-29 11:05:01,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231369321] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-29 11:05:01,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-29 11:05:01,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2025-04-29 11:05:01,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404426239] [2025-04-29 11:05:01,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-29 11:05:01,434 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-29 11:05:01,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:05:01,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-29 11:05:01,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-29 11:05:01,434 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2025-04-29 11:05:01,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:05:01,461 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2025-04-29 11:05:01,461 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-29 11:05:01,461 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 [2025-04-29 11:05:01,461 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:05:01,461 INFO L225 Difference]: With dead ends: 47 [2025-04-29 11:05:01,461 INFO L226 Difference]: Without dead ends: 0 [2025-04-29 11:05:01,462 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:05:01,462 INFO L437 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-29 11:05:01,462 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:05:01,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-29 11:05:01,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-29 11:05:01,462 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) [2025-04-29 11:05:01,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-29 11:05:01,463 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2025-04-29 11:05:01,463 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:05:01,463 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-29 11:05:01,463 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2025-04-29 11:05:01,463 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-29 11:05:01,463 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-29 11:05:01,465 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2025-04-29 11:05:01,465 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2025-04-29 11:05:01,465 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2025-04-29 11:05:01,465 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2025-04-29 11:05:01,466 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2025-04-29 11:05:01,466 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2025-04-29 11:05:01,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-04-29 11:05:01,666 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-04-29 11:05:01,669 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:05:01,670 INFO L312 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-04-29 11:05:01,747 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:05:01,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:05:01 BoogieIcfgContainer [2025-04-29 11:05:01,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:05:01,759 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:05:01,759 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:05:01,759 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:05:01,759 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:04:56" (3/4) ... [2025-04-29 11:05:01,760 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:05:01,769 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-04-29 11:05:01,769 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-29 11:05:01,769 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:05:01,769 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-29 11:05:01,827 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:05:01,827 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:05:01,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:05:01,828 INFO L158 Benchmark]: Toolchain (without parser) took 5481.35ms. Allocated memory is still 201.3MB. Free memory was 155.1MB in the beginning and 118.2MB in the end (delta: 36.9MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2025-04-29 11:05:01,828 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:05:01,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.93ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 141.3MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:05:01,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.52ms. Allocated memory is still 201.3MB. Free memory was 141.3MB in the beginning and 139.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:05:01,829 INFO L158 Benchmark]: Boogie Preprocessor took 31.05ms. Allocated memory is still 201.3MB. Free memory was 139.8MB in the beginning and 138.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:05:01,829 INFO L158 Benchmark]: RCFGBuilder took 178.05ms. Allocated memory is still 201.3MB. Free memory was 138.1MB in the beginning and 126.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:05:01,829 INFO L158 Benchmark]: TraceAbstraction took 4984.92ms. Allocated memory is still 201.3MB. Free memory was 125.5MB in the beginning and 123.2MB in the end (delta: 2.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2025-04-29 11:05:01,829 INFO L158 Benchmark]: Witness Printer took 68.59ms. Allocated memory is still 201.3MB. Free memory was 123.2MB in the beginning and 118.2MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:05:01,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.93ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 141.3MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.52ms. Allocated memory is still 201.3MB. Free memory was 141.3MB in the beginning and 139.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.05ms. Allocated memory is still 201.3MB. Free memory was 139.8MB in the beginning and 138.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 178.05ms. Allocated memory is still 201.3MB. Free memory was 138.1MB in the beginning and 126.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4984.92ms. Allocated memory is still 201.3MB. Free memory was 125.5MB in the beginning and 123.2MB in the end (delta: 2.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Witness Printer took 68.59ms. Allocated memory is still 201.3MB. Free memory was 123.2MB in the beginning and 118.2MB in the end (delta: 5.0MB). There was no memory consumed. 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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, 25 locations, 30 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 956 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 682 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 626 IncrementalHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 274 mSDtfsCounter, 626 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 430 GetRequests, 328 SyntacticMatches, 8 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=14, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 33 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 516 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 636 ConstructedInterpolants, 0 QuantifiedInterpolants, 1520 SizeOfPredicates, 11 NumberOfNonLiveVariables, 683 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 32 InterpolantComputations, 10 PerfectInterpolantSequences, 279/408 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((long) j + 1) <= 0) && (1 <= length)) || (length == 1)) || (((length <= 2147483647) && (j <= 2147483647)) && (1 <= length))) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((length <= 2147483647) && (1 <= i)) && (1 <= length)) || (((length <= 2147483647) && (i == 0)) && (1 <= length))) RESULT: Ultimate proved your program to be correct! [2025-04-29 11:05:01,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE