./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 715908359373978289cc76ce2f00faf49f4d4a3c6ddae64771646fc969bea981 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 23:05:55,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 23:05:55,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 23:05:55,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 23:05:55,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 23:05:55,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 23:05:55,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 23:05:55,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 23:05:55,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 23:05:55,577 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 23:05:55,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 23:05:55,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 23:05:55,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 23:05:55,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 23:05:55,578 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 23:05:55,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 23:05:55,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 23:05:55,579 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 23:05:55,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 23:05:55,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 23:05:55,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 23:05:55,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 23:05:55,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 23:05:55,580 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 23:05:55,580 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 23:05:55,581 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 23:05:55,581 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 23:05:55,581 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 23:05:55,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 23:05:55,581 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 23:05:55,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 23:05:55,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 23:05:55,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 23:05:55,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 23:05:55,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:05:55,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 23:05:55,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 23:05:55,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 23:05:55,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 23:05:55,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 23:05:55,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 23:05:55,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 23:05:55,588 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 23:05:55,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 23:05:55,589 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 715908359373978289cc76ce2f00faf49f4d4a3c6ddae64771646fc969bea981 [2024-11-22 23:05:55,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 23:05:55,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 23:05:55,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 23:05:55,792 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 23:05:55,792 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 23:05:55,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2024-11-22 23:05:56,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 23:05:57,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 23:05:57,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i15_o15-1.c [2024-11-22 23:05:57,114 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3943a42a7/432a5a92f20a43028d9088b2c0b63f0f/FLAGac5df7bc8 [2024-11-22 23:05:57,123 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3943a42a7/432a5a92f20a43028d9088b2c0b63f0f [2024-11-22 23:05:57,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 23:05:57,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 23:05:57,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 23:05:57,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 23:05:57,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 23:05:57,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537818fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57, skipping insertion in model container [2024-11-22 23:05:57,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 23:05:57,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:05:57,321 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 23:05:57,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 23:05:57,347 INFO L204 MainTranslator]: Completed translation [2024-11-22 23:05:57,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57 WrapperNode [2024-11-22 23:05:57,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 23:05:57,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 23:05:57,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 23:05:57,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 23:05:57,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,376 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2024-11-22 23:05:57,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 23:05:57,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 23:05:57,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 23:05:57,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 23:05:57,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,386 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,397 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 23:05:57,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,406 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,408 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 23:05:57,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 23:05:57,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 23:05:57,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 23:05:57,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (1/1) ... [2024-11-22 23:05:57,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 23:05:57,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:57,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 23:05:57,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 23:05:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 23:05:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 23:05:57,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 23:05:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 23:05:57,476 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-22 23:05:57,476 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-22 23:05:57,522 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 23:05:57,523 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 23:05:57,618 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-22 23:05:57,619 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 23:05:57,627 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 23:05:57,627 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 23:05:57,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:05:57 BoogieIcfgContainer [2024-11-22 23:05:57,630 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 23:05:57,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 23:05:57,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 23:05:57,634 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 23:05:57,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:05:57" (1/3) ... [2024-11-22 23:05:57,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d3647a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:05:57, skipping insertion in model container [2024-11-22 23:05:57,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57" (2/3) ... [2024-11-22 23:05:57,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d3647a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:05:57, skipping insertion in model container [2024-11-22 23:05:57,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:05:57" (3/3) ... [2024-11-22 23:05:57,637 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2024-11-22 23:05:57,650 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 23:05:57,650 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 23:05:57,698 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 23:05:57,703 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77ac0db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 23:05:57,703 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-22 23:05:57,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 23:05:57,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 23:05:57,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:57,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 23:05:57,712 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:05:57,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:57,716 INFO L85 PathProgramCache]: Analyzing trace with hash 890350836, now seen corresponding path program 1 times [2024-11-22 23:05:57,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:57,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84386086] [2024-11-22 23:05:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:57,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:57,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:57,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84386086] [2024-11-22 23:05:57,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84386086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:57,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:57,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 23:05:57,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575142878] [2024-11-22 23:05:57,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:57,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 23:05:57,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:57,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 23:05:57,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 23:05:57,908 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:05:57,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:57,962 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2024-11-22 23:05:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 23:05:57,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 23:05:57,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:57,971 INFO L225 Difference]: With dead ends: 46 [2024-11-22 23:05:57,972 INFO L226 Difference]: Without dead ends: 27 [2024-11-22 23:05:57,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 23:05:57,978 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:57,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 69 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:05:57,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-22 23:05:58,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2024-11-22 23:05:58,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 23:05:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-11-22 23:05:58,010 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 6 [2024-11-22 23:05:58,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:58,010 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-11-22 23:05:58,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:05:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-11-22 23:05:58,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 23:05:58,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:58,011 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:05:58,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 23:05:58,012 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:05:58,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:58,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1922931507, now seen corresponding path program 1 times [2024-11-22 23:05:58,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:58,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872763684] [2024-11-22 23:05:58,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:58,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:58,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:58,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:58,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872763684] [2024-11-22 23:05:58,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872763684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:58,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107266260] [2024-11-22 23:05:58,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:58,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:58,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:58,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:05:58,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 23:05:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:58,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 23:05:58,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:58,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:58,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:58,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107266260] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:58,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:58,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-22 23:05:58,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196086454] [2024-11-22 23:05:58,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:58,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 23:05:58,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:58,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 23:05:58,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-22 23:05:58,358 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 15 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:05:58,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:58,499 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2024-11-22 23:05:58,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 23:05:58,500 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-22 23:05:58,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:58,502 INFO L225 Difference]: With dead ends: 80 [2024-11-22 23:05:58,503 INFO L226 Difference]: Without dead ends: 72 [2024-11-22 23:05:58,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-11-22 23:05:58,505 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 120 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:58,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 101 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:05:58,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-22 23:05:58,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55. [2024-11-22 23:05:58,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 44 states have internal predecessors, (58), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-22 23:05:58,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2024-11-22 23:05:58,522 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 11 [2024-11-22 23:05:58,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:58,522 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2024-11-22 23:05:58,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 2.0) internal successors, (22), 10 states have internal predecessors, (22), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:05:58,523 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2024-11-22 23:05:58,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-22 23:05:58,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:58,524 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-22 23:05:58,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 23:05:58,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:58,725 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:05:58,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:58,725 INFO L85 PathProgramCache]: Analyzing trace with hash -518665372, now seen corresponding path program 1 times [2024-11-22 23:05:58,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:58,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300405809] [2024-11-22 23:05:58,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:58,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:58,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:58,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:58,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300405809] [2024-11-22 23:05:58,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300405809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:58,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763592419] [2024-11-22 23:05:58,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:58,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:58,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:58,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:05:58,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 23:05:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:58,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 23:05:58,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:58,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:58,883 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 23:05:58,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763592419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:58,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 23:05:58,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2024-11-22 23:05:58,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859593125] [2024-11-22 23:05:58,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:58,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 23:05:58,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:58,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 23:05:58,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-22 23:05:58,885 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:05:58,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:58,944 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2024-11-22 23:05:58,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 23:05:58,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-22 23:05:58,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:58,947 INFO L225 Difference]: With dead ends: 63 [2024-11-22 23:05:58,947 INFO L226 Difference]: Without dead ends: 62 [2024-11-22 23:05:58,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-22 23:05:58,948 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 37 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:58,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 37 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:05:58,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-22 23:05:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2024-11-22 23:05:58,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-22 23:05:58,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2024-11-22 23:05:58,959 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2024-11-22 23:05:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:58,960 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2024-11-22 23:05:58,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:05:58,960 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2024-11-22 23:05:58,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-22 23:05:58,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:58,961 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:05:58,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 23:05:59,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-22 23:05:59,161 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:05:59,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:59,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1856245274, now seen corresponding path program 1 times [2024-11-22 23:05:59,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:59,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576137907] [2024-11-22 23:05:59,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:59,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 23:05:59,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:59,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576137907] [2024-11-22 23:05:59,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576137907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:59,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:59,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 23:05:59,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155280128] [2024-11-22 23:05:59,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:59,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 23:05:59,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:59,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 23:05:59,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 23:05:59,231 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:05:59,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:59,248 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2024-11-22 23:05:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 23:05:59,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-22 23:05:59,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:59,249 INFO L225 Difference]: With dead ends: 74 [2024-11-22 23:05:59,249 INFO L226 Difference]: Without dead ends: 72 [2024-11-22 23:05:59,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 23:05:59,250 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:59,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:05:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-22 23:05:59,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-22 23:05:59,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-22 23:05:59,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2024-11-22 23:05:59,260 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2024-11-22 23:05:59,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:59,260 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2024-11-22 23:05:59,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:05:59,261 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2024-11-22 23:05:59,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 23:05:59,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:59,264 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 23:05:59,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 23:05:59,265 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:05:59,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:59,265 INFO L85 PathProgramCache]: Analyzing trace with hash -614066819, now seen corresponding path program 1 times [2024-11-22 23:05:59,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:59,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73974444] [2024-11-22 23:05:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:05:59,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:05:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 23:05:59,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73974444] [2024-11-22 23:05:59,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73974444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 23:05:59,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 23:05:59,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 23:05:59,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909844333] [2024-11-22 23:05:59,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 23:05:59,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 23:05:59,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:59,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 23:05:59,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 23:05:59,301 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:05:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:05:59,308 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2024-11-22 23:05:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 23:05:59,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-22 23:05:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:05:59,311 INFO L225 Difference]: With dead ends: 72 [2024-11-22 23:05:59,311 INFO L226 Difference]: Without dead ends: 71 [2024-11-22 23:05:59,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 23:05:59,312 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:05:59,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:05:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-22 23:05:59,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-22 23:05:59,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-22 23:05:59,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2024-11-22 23:05:59,319 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 24 [2024-11-22 23:05:59,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:05:59,319 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2024-11-22 23:05:59,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 23:05:59,319 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2024-11-22 23:05:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 23:05:59,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:05:59,320 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-11-22 23:05:59,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 23:05:59,320 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:05:59,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:05:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1990585420, now seen corresponding path program 2 times [2024-11-22 23:05:59,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:05:59,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279774897] [2024-11-22 23:05:59,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:59,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:05:59,334 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:59,336 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:59,504 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:59,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:05:59,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279774897] [2024-11-22 23:05:59,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279774897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:05:59,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625776144] [2024-11-22 23:05:59,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:05:59,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:05:59,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:05:59,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:05:59,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 23:05:59,539 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:05:59,540 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:05:59,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 23:05:59,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:05:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:59,617 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:05:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:05:59,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625776144] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:05:59,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:05:59,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-11-22 23:05:59,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138135550] [2024-11-22 23:05:59,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:05:59,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-22 23:05:59,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:05:59,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-22 23:05:59,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2024-11-22 23:05:59,814 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 27 states, 23 states have (on average 2.0) internal successors, (46), 16 states have internal predecessors, (46), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:00,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:00,096 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2024-11-22 23:06:00,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-22 23:06:00,098 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 2.0) internal successors, (46), 16 states have internal predecessors, (46), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-22 23:06:00,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:00,098 INFO L225 Difference]: With dead ends: 188 [2024-11-22 23:06:00,099 INFO L226 Difference]: Without dead ends: 156 [2024-11-22 23:06:00,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2024-11-22 23:06:00,100 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 286 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:00,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 239 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:00,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-22 23:06:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2024-11-22 23:06:00,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.146551724137931) internal successors, (133), 116 states have internal predecessors, (133), 12 states have call successors, (12), 11 states have call predecessors, (12), 16 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-22 23:06:00,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2024-11-22 23:06:00,127 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 26 [2024-11-22 23:06:00,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:00,127 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2024-11-22 23:06:00,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 2.0) internal successors, (46), 16 states have internal predecessors, (46), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:00,127 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2024-11-22 23:06:00,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-22 23:06:00,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:00,128 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-22 23:06:00,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 23:06:00,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:00,331 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:00,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:00,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1350016289, now seen corresponding path program 1 times [2024-11-22 23:06:00,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:00,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051943252] [2024-11-22 23:06:00,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:00,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 23:06:00,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:00,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051943252] [2024-11-22 23:06:00,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051943252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:00,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466482268] [2024-11-22 23:06:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 23:06:00,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:00,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:00,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:00,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 23:06:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 23:06:00,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 23:06:00,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 23:06:00,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:00,878 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 23:06:00,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466482268] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:00,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:00,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 15] total 29 [2024-11-22 23:06:00,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046781877] [2024-11-22 23:06:00,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:00,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-22 23:06:00,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:00,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-22 23:06:00,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2024-11-22 23:06:00,881 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:06:01,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:01,246 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2024-11-22 23:06:01,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 23:06:01,247 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 40 [2024-11-22 23:06:01,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:01,248 INFO L225 Difference]: With dead ends: 208 [2024-11-22 23:06:01,248 INFO L226 Difference]: Without dead ends: 142 [2024-11-22 23:06:01,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=1334, Unknown=0, NotChecked=0, Total=1640 [2024-11-22 23:06:01,249 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 160 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:01,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 430 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:06:01,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-22 23:06:01,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2024-11-22 23:06:01,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 106 states have internal predecessors, (119), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2024-11-22 23:06:01,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2024-11-22 23:06:01,267 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 40 [2024-11-22 23:06:01,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:01,267 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2024-11-22 23:06:01,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-22 23:06:01,267 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2024-11-22 23:06:01,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 23:06:01,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:01,268 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2024-11-22 23:06:01,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 23:06:01,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:01,469 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:01,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:01,469 INFO L85 PathProgramCache]: Analyzing trace with hash -91829804, now seen corresponding path program 3 times [2024-11-22 23:06:01,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:01,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589314936] [2024-11-22 23:06:01,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:06:01,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:01,482 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-22 23:06:01,484 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:01,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:01,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589314936] [2024-11-22 23:06:01,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589314936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:01,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327452512] [2024-11-22 23:06:01,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:06:01,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:01,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:01,765 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:01,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 23:06:01,799 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-22 23:06:01,800 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:01,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-22 23:06:01,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:01,888 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:02,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327452512] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:02,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:02,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 50 [2024-11-22 23:06:02,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130460624] [2024-11-22 23:06:02,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:02,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-22 23:06:02,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:02,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-22 23:06:02,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=608, Invalid=1942, Unknown=0, NotChecked=0, Total=2550 [2024-11-22 23:06:02,340 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand has 51 states, 47 states have (on average 2.0) internal successors, (94), 28 states have internal predecessors, (94), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:02,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:02,932 INFO L93 Difference]: Finished difference Result 438 states and 470 transitions. [2024-11-22 23:06:02,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-22 23:06:02,933 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 47 states have (on average 2.0) internal successors, (94), 28 states have internal predecessors, (94), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-22 23:06:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:02,935 INFO L225 Difference]: With dead ends: 438 [2024-11-22 23:06:02,935 INFO L226 Difference]: Without dead ends: 386 [2024-11-22 23:06:02,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1391, Invalid=3865, Unknown=0, NotChecked=0, Total=5256 [2024-11-22 23:06:02,937 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 771 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:02,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 556 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:06:02,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-22 23:06:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 364. [2024-11-22 23:06:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 291 states have (on average 1.120274914089347) internal successors, (326), 290 states have internal predecessors, (326), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2024-11-22 23:06:02,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 400 transitions. [2024-11-22 23:06:02,960 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 400 transitions. Word has length 56 [2024-11-22 23:06:02,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:02,960 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 400 transitions. [2024-11-22 23:06:02,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 47 states have (on average 2.0) internal successors, (94), 28 states have internal predecessors, (94), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:02,960 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 400 transitions. [2024-11-22 23:06:02,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 23:06:02,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:02,964 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-22 23:06:02,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 23:06:03,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:03,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:03,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:03,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1351701622, now seen corresponding path program 2 times [2024-11-22 23:06:03,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:03,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571872179] [2024-11-22 23:06:03,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:06:03,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:03,176 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:06:03,176 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 23:06:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:03,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571872179] [2024-11-22 23:06:03,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571872179] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:03,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402598776] [2024-11-22 23:06:03,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 23:06:03,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:03,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:03,532 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:03,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 23:06:03,571 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 23:06:03,571 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:03,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-22 23:06:03,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:03,684 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 297 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 23:06:03,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 303 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 23:06:04,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402598776] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:04,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:04,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 27] total 40 [2024-11-22 23:06:04,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771146847] [2024-11-22 23:06:04,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:04,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-22 23:06:04,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-22 23:06:04,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=1263, Unknown=0, NotChecked=0, Total=1560 [2024-11-22 23:06:04,165 INFO L87 Difference]: Start difference. First operand 364 states and 400 transitions. Second operand has 40 states, 37 states have (on average 2.324324324324324) internal successors, (86), 27 states have internal predecessors, (86), 19 states have call successors, (20), 14 states have call predecessors, (20), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-22 23:06:04,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:04,545 INFO L93 Difference]: Finished difference Result 457 states and 492 transitions. [2024-11-22 23:06:04,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-22 23:06:04,546 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 37 states have (on average 2.324324324324324) internal successors, (86), 27 states have internal predecessors, (86), 19 states have call successors, (20), 14 states have call predecessors, (20), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 75 [2024-11-22 23:06:04,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:04,548 INFO L225 Difference]: With dead ends: 457 [2024-11-22 23:06:04,548 INFO L226 Difference]: Without dead ends: 356 [2024-11-22 23:06:04,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 122 SyntacticMatches, 15 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=644, Invalid=2326, Unknown=0, NotChecked=0, Total=2970 [2024-11-22 23:06:04,549 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 325 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:04,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 497 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:04,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-22 23:06:04,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 324. [2024-11-22 23:06:04,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 259 states have (on average 1.1196911196911197) internal successors, (290), 258 states have internal predecessors, (290), 24 states have call successors, (24), 23 states have call predecessors, (24), 39 states have return successors, (42), 42 states have call predecessors, (42), 23 states have call successors, (42) [2024-11-22 23:06:04,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 356 transitions. [2024-11-22 23:06:04,565 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 356 transitions. Word has length 75 [2024-11-22 23:06:04,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:04,565 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 356 transitions. [2024-11-22 23:06:04,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 37 states have (on average 2.324324324324324) internal successors, (86), 27 states have internal predecessors, (86), 19 states have call successors, (20), 14 states have call predecessors, (20), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-22 23:06:04,565 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 356 transitions. [2024-11-22 23:06:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 23:06:04,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:04,566 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-22 23:06:04,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 23:06:04,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:04,771 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:04,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:04,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1206835786, now seen corresponding path program 3 times [2024-11-22 23:06:04,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:04,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121077363] [2024-11-22 23:06:04,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:06:04,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:04,778 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-22 23:06:04,778 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:04,852 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-22 23:06:04,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:04,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121077363] [2024-11-22 23:06:04,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121077363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:04,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065864462] [2024-11-22 23:06:04,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 23:06:04,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:04,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:04,858 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:04,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 23:06:04,894 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-22 23:06:04,894 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:04,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 23:06:04,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:04,938 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-22 23:06:04,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-22 23:06:05,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065864462] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:05,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:05,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-22 23:06:05,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506408491] [2024-11-22 23:06:05,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:05,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 23:06:05,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:05,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 23:06:05,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-22 23:06:05,075 INFO L87 Difference]: Start difference. First operand 324 states and 356 transitions. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 23:06:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:05,120 INFO L93 Difference]: Finished difference Result 567 states and 652 transitions. [2024-11-22 23:06:05,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 23:06:05,120 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 95 [2024-11-22 23:06:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:05,122 INFO L225 Difference]: With dead ends: 567 [2024-11-22 23:06:05,122 INFO L226 Difference]: Without dead ends: 566 [2024-11-22 23:06:05,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-22 23:06:05,123 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:05,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 23:06:05,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-22 23:06:05,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2024-11-22 23:06:05,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 455 states have (on average 1.0681318681318681) internal successors, (486), 450 states have internal predecessors, (486), 24 states have call successors, (24), 23 states have call predecessors, (24), 85 states have return successors, (92), 92 states have call predecessors, (92), 23 states have call successors, (92) [2024-11-22 23:06:05,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 602 transitions. [2024-11-22 23:06:05,149 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 602 transitions. Word has length 95 [2024-11-22 23:06:05,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:05,149 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 602 transitions. [2024-11-22 23:06:05,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 23:06:05,149 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 602 transitions. [2024-11-22 23:06:05,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 23:06:05,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:05,151 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2024-11-22 23:06:05,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 23:06:05,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:05,351 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:05,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:05,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1473917420, now seen corresponding path program 4 times [2024-11-22 23:06:05,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:05,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412286238] [2024-11-22 23:06:05,352 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:06:05,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:05,367 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:06:05,367 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:06,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:06,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412286238] [2024-11-22 23:06:06,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412286238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:06,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516271131] [2024-11-22 23:06:06,310 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:06:06,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:06,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:06,312 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:06,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 23:06:06,357 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:06:06,357 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:06,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-22 23:06:06,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:06,525 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 23:06:08,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516271131] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:08,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:08,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 98 [2024-11-22 23:06:08,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507595483] [2024-11-22 23:06:08,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:08,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2024-11-22 23:06:08,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:08,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2024-11-22 23:06:08,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2360, Invalid=7342, Unknown=0, NotChecked=0, Total=9702 [2024-11-22 23:06:08,077 INFO L87 Difference]: Start difference. First operand 566 states and 602 transitions. Second operand has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:08,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:08,509 INFO L93 Difference]: Finished difference Result 581 states and 602 transitions. [2024-11-22 23:06:08,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-22 23:06:08,512 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-22 23:06:08,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:08,513 INFO L225 Difference]: With dead ends: 581 [2024-11-22 23:06:08,513 INFO L226 Difference]: Without dead ends: 580 [2024-11-22 23:06:08,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3218 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3827, Invalid=9513, Unknown=0, NotChecked=0, Total=13340 [2024-11-22 23:06:08,516 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 490 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:08,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 668 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 23:06:08,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-22 23:06:08,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 565. [2024-11-22 23:06:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 455 states have (on average 1.065934065934066) internal successors, (485), 449 states have internal predecessors, (485), 24 states have call successors, (24), 23 states have call predecessors, (24), 85 states have return successors, (92), 92 states have call predecessors, (92), 23 states have call successors, (92) [2024-11-22 23:06:08,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 601 transitions. [2024-11-22 23:06:08,535 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 601 transitions. Word has length 116 [2024-11-22 23:06:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:08,535 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 601 transitions. [2024-11-22 23:06:08,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 23:06:08,536 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 601 transitions. [2024-11-22 23:06:08,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 23:06:08,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:08,537 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2024-11-22 23:06:08,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 23:06:08,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 23:06:08,738 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:08,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:08,738 INFO L85 PathProgramCache]: Analyzing trace with hash -881040522, now seen corresponding path program 4 times [2024-11-22 23:06:08,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:08,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857297233] [2024-11-22 23:06:08,738 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:06:08,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:08,751 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:06:08,751 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-22 23:06:08,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:08,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857297233] [2024-11-22 23:06:08,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857297233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:08,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001482924] [2024-11-22 23:06:08,969 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 23:06:08,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:08,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:08,971 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:08,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 23:06:09,011 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 23:06:09,011 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:09,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 23:06:09,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-22 23:06:09,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:10,073 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-22 23:06:10,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001482924] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:10,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:10,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-11-22 23:06:10,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223561853] [2024-11-22 23:06:10,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:10,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-22 23:06:10,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:10,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-22 23:06:10,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-11-22 23:06:10,075 INFO L87 Difference]: Start difference. First operand 565 states and 601 transitions. Second operand has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 23:06:10,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:10,170 INFO L93 Difference]: Finished difference Result 1290 states and 1481 transitions. [2024-11-22 23:06:10,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 23:06:10,170 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 115 [2024-11-22 23:06:10,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:10,174 INFO L225 Difference]: With dead ends: 1290 [2024-11-22 23:06:10,174 INFO L226 Difference]: Without dead ends: 1289 [2024-11-22 23:06:10,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-11-22 23:06:10,175 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:10,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:10,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-22 23:06:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2024-11-22 23:06:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1039 states have (on average 1.0288739172281038) internal successors, (1069), 1025 states have internal predecessors, (1069), 24 states have call successors, (24), 23 states have call predecessors, (24), 225 states have return successors, (240), 240 states have call predecessors, (240), 23 states have call successors, (240) [2024-11-22 23:06:10,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1333 transitions. [2024-11-22 23:06:10,223 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1333 transitions. Word has length 115 [2024-11-22 23:06:10,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:10,224 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1333 transitions. [2024-11-22 23:06:10,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 23:06:10,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1333 transitions. [2024-11-22 23:06:10,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 23:06:10,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:10,226 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1] [2024-11-22 23:06:10,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 23:06:10,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:10,431 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:10,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:10,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1888895242, now seen corresponding path program 5 times [2024-11-22 23:06:10,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:10,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850340005] [2024-11-22 23:06:10,431 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:06:10,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:10,460 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-11-22 23:06:10,460 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-22 23:06:10,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:10,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850340005] [2024-11-22 23:06:10,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850340005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:10,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055969900] [2024-11-22 23:06:10,878 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 23:06:10,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:10,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:10,879 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:10,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 23:06:10,954 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-11-22 23:06:10,954 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:10,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-22 23:06:10,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-22 23:06:11,028 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 23:06:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-22 23:06:19,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055969900] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 23:06:19,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 23:06:19,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 61 [2024-11-22 23:06:19,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685257183] [2024-11-22 23:06:19,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 23:06:19,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-22 23:06:19,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 23:06:19,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-22 23:06:19,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2024-11-22 23:06:19,620 INFO L87 Difference]: Start difference. First operand 1289 states and 1333 transitions. Second operand has 62 states, 61 states have (on average 2.098360655737705) internal successors, (128), 62 states have internal predecessors, (128), 1 states have call successors, (2), 1 states have call predecessors, (2), 30 states have return successors, (30), 30 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-22 23:06:19,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 23:06:19,828 INFO L93 Difference]: Finished difference Result 3098 states and 3509 transitions. [2024-11-22 23:06:19,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-22 23:06:19,828 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 2.098360655737705) internal successors, (128), 62 states have internal predecessors, (128), 1 states have call successors, (2), 1 states have call predecessors, (2), 30 states have return successors, (30), 30 states have call predecessors, (30), 1 states have call successors, (30) Word has length 155 [2024-11-22 23:06:19,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 23:06:19,833 INFO L225 Difference]: With dead ends: 3098 [2024-11-22 23:06:19,833 INFO L226 Difference]: Without dead ends: 1495 [2024-11-22 23:06:19,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2024-11-22 23:06:19,838 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 23:06:19,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 23:06:19,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2024-11-22 23:06:19,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1495. [2024-11-22 23:06:19,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1208 states have (on average 1.0190397350993377) internal successors, (1231), 1187 states have internal predecessors, (1231), 24 states have call successors, (24), 23 states have call predecessors, (24), 262 states have return successors, (284), 284 states have call predecessors, (284), 23 states have call successors, (284) [2024-11-22 23:06:19,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1539 transitions. [2024-11-22 23:06:19,893 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1539 transitions. Word has length 155 [2024-11-22 23:06:19,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 23:06:19,894 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 1539 transitions. [2024-11-22 23:06:19,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 2.098360655737705) internal successors, (128), 62 states have internal predecessors, (128), 1 states have call successors, (2), 1 states have call predecessors, (2), 30 states have return successors, (30), 30 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-22 23:06:19,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1539 transitions. [2024-11-22 23:06:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-22 23:06:19,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 23:06:19,901 INFO L215 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 30, 1, 1, 1, 1, 1] [2024-11-22 23:06:19,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 23:06:20,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 23:06:20,102 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-22 23:06:20,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 23:06:20,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1652786442, now seen corresponding path program 6 times [2024-11-22 23:06:20,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 23:06:20,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985087532] [2024-11-22 23:06:20,104 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 23:06:20,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 23:06:20,171 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2024-11-22 23:06:20,172 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4712 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 2387 trivial. 0 not checked. [2024-11-22 23:06:21,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 23:06:21,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985087532] [2024-11-22 23:06:21,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985087532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 23:06:21,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176474341] [2024-11-22 23:06:21,841 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 23:06:21,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 23:06:21,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 23:06:21,842 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 23:06:21,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 23:06:22,049 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2024-11-22 23:06:22,049 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 23:06:22,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-22 23:06:22,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 23:06:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4712 backedges. 2325 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2024-11-22 23:06:23,262 INFO L311 TraceCheckSpWp]: Computing backward predicates...