./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound100.i --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/nla-digbench-scaling/divbin_unwindbound100.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aca8f035d06c0b5071d069d3e7dfc8602e7f38b097f4966dbc919eb2aff21501 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 22:32:24,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 22:32:24,569 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 22:32:24,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 22:32:24,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 22:32:24,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 22:32:24,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 22:32:24,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 22:32:24,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 22:32:24,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 22:32:24,606 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 22:32:24,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 22:32:24,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 22:32:24,608 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 22:32:24,608 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 22:32:24,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 22:32:24,608 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 22:32:24,609 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 22:32:24,609 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 22:32:24,609 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 22:32:24,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 22:32:24,612 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 22:32:24,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 22:32:24,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 22:32:24,612 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 22:32:24,612 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 22:32:24,613 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 22:32:24,613 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 22:32:24,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 22:32:24,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 22:32:24,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 22:32:24,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 22:32:24,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 22:32:24,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 22:32:24,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:32:24,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 22:32:24,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 22:32:24,614 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 22:32:24,614 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 22:32:24,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 22:32:24,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 22:32:24,615 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 22:32:24,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 22:32:24,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 22:32:24,616 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aca8f035d06c0b5071d069d3e7dfc8602e7f38b097f4966dbc919eb2aff21501 [2024-11-22 22:32:24,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 22:32:24,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 22:32:24,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 22:32:24,842 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 22:32:24,843 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 22:32:24,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound100.i [2024-11-22 22:32:26,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 22:32:26,232 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 22:32:26,233 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound100.i [2024-11-22 22:32:26,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99121b3b/140b760e6f56436f8f8342e6899cb5b6/FLAG75dab1831 [2024-11-22 22:32:26,250 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f99121b3b/140b760e6f56436f8f8342e6899cb5b6 [2024-11-22 22:32:26,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 22:32:26,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 22:32:26,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 22:32:26,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 22:32:26,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 22:32:26,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75015fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26, skipping insertion in model container [2024-11-22 22:32:26,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,276 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 22:32:26,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:32:26,449 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 22:32:26,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:32:26,486 INFO L204 MainTranslator]: Completed translation [2024-11-22 22:32:26,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26 WrapperNode [2024-11-22 22:32:26,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 22:32:26,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 22:32:26,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 22:32:26,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 22:32:26,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,515 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2024-11-22 22:32:26,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 22:32:26,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 22:32:26,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 22:32:26,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 22:32:26,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,537 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 22:32:26,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 22:32:26,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 22:32:26,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 22:32:26,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 22:32:26,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (1/1) ... [2024-11-22 22:32:26,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:32:26,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:32:26,583 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 22:32:26,586 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 22:32:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 22:32:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 22:32:26,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 22:32:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 22:32:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 22:32:26,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 22:32:26,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 22:32:26,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 22:32:26,680 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 22:32:26,682 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 22:32:26,846 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-22 22:32:26,847 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 22:32:26,859 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 22:32:26,861 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 22:32:26,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:32:26 BoogieIcfgContainer [2024-11-22 22:32:26,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 22:32:26,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 22:32:26,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 22:32:26,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 22:32:26,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:32:26" (1/3) ... [2024-11-22 22:32:26,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3810d9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:32:26, skipping insertion in model container [2024-11-22 22:32:26,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:32:26" (2/3) ... [2024-11-22 22:32:26,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3810d9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:32:26, skipping insertion in model container [2024-11-22 22:32:26,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:32:26" (3/3) ... [2024-11-22 22:32:26,869 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound100.i [2024-11-22 22:32:26,883 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 22:32:26,883 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 22:32:26,948 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 22:32:26,954 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;@869269d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 22:32:26,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-22 22:32:26,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 30 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 22:32:26,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 22:32:26,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:26,965 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:26,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:26,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:26,969 INFO L85 PathProgramCache]: Analyzing trace with hash -604571617, now seen corresponding path program 1 times [2024-11-22 22:32:26,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:26,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508155658] [2024-11-22 22:32:26,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:26,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 22:32:27,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:27,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508155658] [2024-11-22 22:32:27,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508155658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:32:27,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792970850] [2024-11-22 22:32:27,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:27,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:27,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:32:27,089 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 22:32:27,090 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 22:32:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:27,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 22:32:27,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:32:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 22:32:27,138 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:32:27,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792970850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:32:27,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:32:27,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 22:32:27,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176704506] [2024-11-22 22:32:27,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:32:27,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 22:32:27,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:27,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 22:32:27,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 22:32:27,167 INFO L87 Difference]: Start difference. First operand has 37 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 30 states have internal predecessors, (40), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 22:32:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:27,185 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2024-11-22 22:32:27,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 22:32:27,186 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-22 22:32:27,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:27,191 INFO L225 Difference]: With dead ends: 70 [2024-11-22 22:32:27,191 INFO L226 Difference]: Without dead ends: 29 [2024-11-22 22:32:27,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 22:32:27,196 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:27,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:32:27,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-22 22:32:27,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-22 22:32:27,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:32:27,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-22 22:32:27,227 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 15 [2024-11-22 22:32:27,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:27,228 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-22 22:32:27,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 22:32:27,229 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-22 22:32:27,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 22:32:27,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:27,231 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:27,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 22:32:27,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 22:32:27,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:27,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:27,434 INFO L85 PathProgramCache]: Analyzing trace with hash 153751263, now seen corresponding path program 1 times [2024-11-22 22:32:27,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:27,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208973403] [2024-11-22 22:32:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:27,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:27,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:27,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208973403] [2024-11-22 22:32:27,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208973403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:32:27,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:32:27,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:32:27,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624013529] [2024-11-22 22:32:27,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:32:27,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:32:27,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:27,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:32:27,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:32:27,552 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:27,592 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-22 22:32:27,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:32:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-22 22:32:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:27,594 INFO L225 Difference]: With dead ends: 34 [2024-11-22 22:32:27,594 INFO L226 Difference]: Without dead ends: 33 [2024-11-22 22:32:27,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:32:27,595 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:27,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 61 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:32:27,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-22 22:32:27,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2024-11-22 22:32:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.3) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:32:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-11-22 22:32:27,601 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 15 [2024-11-22 22:32:27,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:27,602 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-11-22 22:32:27,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:27,602 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-22 22:32:27,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-22 22:32:27,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:27,602 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:27,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 22:32:27,603 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:27,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:27,605 INFO L85 PathProgramCache]: Analyzing trace with hash 471321901, now seen corresponding path program 1 times [2024-11-22 22:32:27,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:27,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191851041] [2024-11-22 22:32:27,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:27,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:27,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:27,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:27,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191851041] [2024-11-22 22:32:27,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191851041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:32:27,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:32:27,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:32:27,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900429644] [2024-11-22 22:32:27,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:32:27,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:32:27,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:27,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:32:27,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:32:27,690 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:27,722 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2024-11-22 22:32:27,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 22:32:27,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-22 22:32:27,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:27,723 INFO L225 Difference]: With dead ends: 46 [2024-11-22 22:32:27,724 INFO L226 Difference]: Without dead ends: 32 [2024-11-22 22:32:27,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:32:27,725 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:27,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 70 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:32:27,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-22 22:32:27,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-22 22:32:27,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.25) internal successors, (30), 26 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:32:27,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-11-22 22:32:27,732 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 16 [2024-11-22 22:32:27,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:27,733 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-11-22 22:32:27,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:27,733 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2024-11-22 22:32:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 22:32:27,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:27,733 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:27,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 22:32:27,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:27,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:27,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2080735310, now seen corresponding path program 1 times [2024-11-22 22:32:27,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:27,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055712766] [2024-11-22 22:32:27,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:27,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:27,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:27,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:27,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055712766] [2024-11-22 22:32:27,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055712766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:32:27,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:32:27,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 22:32:27,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038380331] [2024-11-22 22:32:27,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:32:27,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:32:27,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:32:27,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 22:32:27,844 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:27,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:27,921 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2024-11-22 22:32:27,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:32:27,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-22 22:32:27,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:27,923 INFO L225 Difference]: With dead ends: 32 [2024-11-22 22:32:27,923 INFO L226 Difference]: Without dead ends: 31 [2024-11-22 22:32:27,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:32:27,924 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 27 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:27,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 63 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:32:27,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-22 22:32:27,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-22 22:32:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:32:27,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-22 22:32:27,934 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2024-11-22 22:32:27,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:27,934 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-22 22:32:27,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:27,935 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-22 22:32:27,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-22 22:32:27,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:27,937 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:27,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 22:32:27,937 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:27,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:27,938 INFO L85 PathProgramCache]: Analyzing trace with hash -78285105, now seen corresponding path program 1 times [2024-11-22 22:32:27,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:27,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556559091] [2024-11-22 22:32:27,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:27,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:28,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:28,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:28,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556559091] [2024-11-22 22:32:28,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556559091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:32:28,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:32:28,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 22:32:28,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147868527] [2024-11-22 22:32:28,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:32:28,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:32:28,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:28,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:32:28,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 22:32:28,048 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:28,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:28,115 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2024-11-22 22:32:28,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 22:32:28,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-22 22:32:28,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:28,117 INFO L225 Difference]: With dead ends: 41 [2024-11-22 22:32:28,117 INFO L226 Difference]: Without dead ends: 40 [2024-11-22 22:32:28,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:32:28,118 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:28,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 94 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:32:28,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-22 22:32:28,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2024-11-22 22:32:28,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:32:28,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2024-11-22 22:32:28,123 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 21 [2024-11-22 22:32:28,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:28,123 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2024-11-22 22:32:28,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:28,123 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2024-11-22 22:32:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-22 22:32:28,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:28,124 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:28,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 22:32:28,124 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:28,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:28,125 INFO L85 PathProgramCache]: Analyzing trace with hash -78246376, now seen corresponding path program 1 times [2024-11-22 22:32:28,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:28,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143424914] [2024-11-22 22:32:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:28,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:28,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:28,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143424914] [2024-11-22 22:32:28,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143424914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:32:28,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629965397] [2024-11-22 22:32:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:28,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:28,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:32:28,218 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 22:32:28,219 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 22:32:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:28,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 22:32:28,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:32:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:28,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:32:28,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629965397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:32:28,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:32:28,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-22 22:32:28,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758759628] [2024-11-22 22:32:28,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:32:28,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 22:32:28,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:28,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 22:32:28,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:32:28,298 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:28,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:28,389 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-11-22 22:32:28,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 22:32:28,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-22 22:32:28,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:28,391 INFO L225 Difference]: With dead ends: 39 [2024-11-22 22:32:28,391 INFO L226 Difference]: Without dead ends: 38 [2024-11-22 22:32:28,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:32:28,391 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:28,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 78 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:32:28,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-22 22:32:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2024-11-22 22:32:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:32:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2024-11-22 22:32:28,400 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 21 [2024-11-22 22:32:28,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:28,402 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2024-11-22 22:32:28,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:32:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2024-11-22 22:32:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-22 22:32:28,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:28,403 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:28,409 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 22:32:28,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-22 22:32:28,604 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:28,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash 654806120, now seen corresponding path program 1 times [2024-11-22 22:32:28,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:28,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230587587] [2024-11-22 22:32:28,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:28,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:28,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:28,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230587587] [2024-11-22 22:32:28,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230587587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:32:28,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75714946] [2024-11-22 22:32:28,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:28,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:28,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:32:28,678 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 22:32:28,681 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 22:32:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:28,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:32:28,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:32:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:28,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:32:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:28,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75714946] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:32:28,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:32:28,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-11-22 22:32:28,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950375876] [2024-11-22 22:32:28,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:32:28,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 22:32:28,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:28,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 22:32:28,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:32:28,817 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 22:32:28,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:28,900 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2024-11-22 22:32:28,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 22:32:28,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 25 [2024-11-22 22:32:28,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:28,901 INFO L225 Difference]: With dead ends: 68 [2024-11-22 22:32:28,901 INFO L226 Difference]: Without dead ends: 56 [2024-11-22 22:32:28,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-22 22:32:28,902 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 25 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:28,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 117 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:32:28,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-22 22:32:28,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2024-11-22 22:32:28,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:32:28,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2024-11-22 22:32:28,908 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 25 [2024-11-22 22:32:28,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:28,908 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2024-11-22 22:32:28,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 22:32:28,908 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2024-11-22 22:32:28,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 22:32:28,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:28,909 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:28,915 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 22:32:29,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:29,113 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:29,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:29,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1174269756, now seen corresponding path program 1 times [2024-11-22 22:32:29,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:29,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198333923] [2024-11-22 22:32:29,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:29,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:29,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198333923] [2024-11-22 22:32:29,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198333923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:32:29,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457342670] [2024-11-22 22:32:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:29,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:29,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:32:29,197 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 22:32:29,198 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 22:32:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:29,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 22:32:29,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:32:29,286 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:29,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:32:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:29,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457342670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:32:29,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:32:29,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2024-11-22 22:32:29,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034723745] [2024-11-22 22:32:29,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:32:29,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 22:32:29,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:29,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 22:32:29,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-11-22 22:32:29,379 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:32:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:29,583 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2024-11-22 22:32:29,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-22 22:32:29,583 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-22 22:32:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:29,584 INFO L225 Difference]: With dead ends: 77 [2024-11-22 22:32:29,584 INFO L226 Difference]: Without dead ends: 76 [2024-11-22 22:32:29,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2024-11-22 22:32:29,585 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 110 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:29,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 122 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:32:29,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-22 22:32:29,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2024-11-22 22:32:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 60 states have (on average 1.15) internal successors, (69), 60 states have internal predecessors, (69), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-22 22:32:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2024-11-22 22:32:29,592 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 26 [2024-11-22 22:32:29,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:29,592 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2024-11-22 22:32:29,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:32:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2024-11-22 22:32:29,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 22:32:29,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:29,594 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:29,604 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 22:32:29,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:29,795 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:29,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:29,795 INFO L85 PathProgramCache]: Analyzing trace with hash 749470151, now seen corresponding path program 1 times [2024-11-22 22:32:29,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:29,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662881508] [2024-11-22 22:32:29,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:29,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:29,985 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 22:32:29,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:29,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662881508] [2024-11-22 22:32:29,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662881508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:32:29,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984920702] [2024-11-22 22:32:29,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:29,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:29,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:32:29,988 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 22:32:29,989 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 22:32:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:30,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 22:32:30,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:32:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:30,197 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:32:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 22:32:30,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984920702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:32:30,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:32:30,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2024-11-22 22:32:30,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749045189] [2024-11-22 22:32:30,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:32:30,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-22 22:32:30,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:30,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-22 22:32:30,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2024-11-22 22:32:30,381 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 30 states, 29 states have (on average 3.3448275862068964) internal successors, (97), 30 states have internal predecessors, (97), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-22 22:32:30,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:30,885 INFO L93 Difference]: Finished difference Result 223 states and 253 transitions. [2024-11-22 22:32:30,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-22 22:32:30,885 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.3448275862068964) internal successors, (97), 30 states have internal predecessors, (97), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) Word has length 54 [2024-11-22 22:32:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:30,887 INFO L225 Difference]: With dead ends: 223 [2024-11-22 22:32:30,888 INFO L226 Difference]: Without dead ends: 222 [2024-11-22 22:32:30,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2024-11-22 22:32:30,890 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 214 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:30,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 207 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:32:30,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-22 22:32:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 169. [2024-11-22 22:32:30,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 141 states have (on average 1.127659574468085) internal successors, (159), 141 states have internal predecessors, (159), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 22:32:30,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 187 transitions. [2024-11-22 22:32:30,911 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 187 transitions. Word has length 54 [2024-11-22 22:32:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:30,911 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 187 transitions. [2024-11-22 22:32:30,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.3448275862068964) internal successors, (97), 30 states have internal predecessors, (97), 11 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-22 22:32:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 187 transitions. [2024-11-22 22:32:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-22 22:32:30,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:30,913 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:30,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 22:32:31,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:31,119 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:31,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:31,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1527022909, now seen corresponding path program 1 times [2024-11-22 22:32:31,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:31,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398873726] [2024-11-22 22:32:31,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:31,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 22:32:31,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:31,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398873726] [2024-11-22 22:32:31,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398873726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:32:31,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542266134] [2024-11-22 22:32:31,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:31,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:31,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:32:31,285 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 22:32:31,289 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 22:32:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:31,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 22:32:31,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:32:31,373 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 22:32:31,374 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:32:31,505 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 22:32:31,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542266134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:32:31,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:32:31,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22 [2024-11-22 22:32:31,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380344912] [2024-11-22 22:32:31,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:32:31,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 22:32:31,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:31,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 22:32:31,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-22 22:32:31,507 INFO L87 Difference]: Start difference. First operand 169 states and 187 transitions. Second operand has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:32:31,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:31,771 INFO L93 Difference]: Finished difference Result 249 states and 281 transitions. [2024-11-22 22:32:31,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-22 22:32:31,771 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-11-22 22:32:31,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:31,772 INFO L225 Difference]: With dead ends: 249 [2024-11-22 22:32:31,772 INFO L226 Difference]: Without dead ends: 223 [2024-11-22 22:32:31,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-11-22 22:32:31,774 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 89 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:31,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 183 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:32:31,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-22 22:32:31,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 199. [2024-11-22 22:32:31,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 171 states have (on average 1.1403508771929824) internal successors, (195), 171 states have internal predecessors, (195), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 22:32:31,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 223 transitions. [2024-11-22 22:32:31,786 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 223 transitions. Word has length 62 [2024-11-22 22:32:31,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:31,786 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 223 transitions. [2024-11-22 22:32:31,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.3181818181818183) internal successors, (73), 22 states have internal predecessors, (73), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:32:31,786 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 223 transitions. [2024-11-22 22:32:31,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 22:32:31,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:31,788 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:31,802 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 22:32:31,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:31,989 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:31,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:31,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1343796701, now seen corresponding path program 2 times [2024-11-22 22:32:31,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:31,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068564627] [2024-11-22 22:32:31,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:32:31,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:32,004 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:32:32,004 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:32:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-22 22:32:32,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:32,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068564627] [2024-11-22 22:32:32,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068564627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:32:32,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:32:32,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 22:32:32,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68317856] [2024-11-22 22:32:32,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:32:32,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 22:32:32,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:32,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 22:32:32,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:32:32,061 INFO L87 Difference]: Start difference. First operand 199 states and 223 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:32:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:32,087 INFO L93 Difference]: Finished difference Result 225 states and 251 transitions. [2024-11-22 22:32:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 22:32:32,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 92 [2024-11-22 22:32:32,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:32,089 INFO L225 Difference]: With dead ends: 225 [2024-11-22 22:32:32,090 INFO L226 Difference]: Without dead ends: 199 [2024-11-22 22:32:32,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 22:32:32,091 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:32,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 94 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:32:32,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-22 22:32:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 155. [2024-11-22 22:32:32,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 127 states have (on average 1.1181102362204725) internal successors, (142), 127 states have internal predecessors, (142), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 22:32:32,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 170 transitions. [2024-11-22 22:32:32,106 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 170 transitions. Word has length 92 [2024-11-22 22:32:32,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:32,106 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 170 transitions. [2024-11-22 22:32:32,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:32:32,107 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 170 transitions. [2024-11-22 22:32:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 22:32:32,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:32,108 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:32,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 22:32:32,108 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:32,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:32,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1694985668, now seen corresponding path program 1 times [2024-11-22 22:32:32,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:32,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306819551] [2024-11-22 22:32:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:32,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 22:32:32,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:32,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306819551] [2024-11-22 22:32:32,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306819551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:32:32,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147230411] [2024-11-22 22:32:32,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:32:32,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:32,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:32:32,575 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 22:32:32,575 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 22:32:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:32:32,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-22 22:32:32,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:32:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 334 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:32:33,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:32:33,786 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 3 proven. 222 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 22:32:33,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147230411] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:32:33,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:32:33,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 22] total 65 [2024-11-22 22:32:33,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579639801] [2024-11-22 22:32:33,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:32:33,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-22 22:32:33,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:33,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-22 22:32:33,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=974, Invalid=3316, Unknown=0, NotChecked=0, Total=4290 [2024-11-22 22:32:33,791 INFO L87 Difference]: Start difference. First operand 155 states and 170 transitions. Second operand has 66 states, 65 states have (on average 3.3384615384615386) internal successors, (217), 66 states have internal predecessors, (217), 26 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) [2024-11-22 22:32:35,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:35,365 INFO L93 Difference]: Finished difference Result 533 states and 600 transitions. [2024-11-22 22:32:35,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2024-11-22 22:32:35,366 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 3.3384615384615386) internal successors, (217), 66 states have internal predecessors, (217), 26 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) Word has length 114 [2024-11-22 22:32:35,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:35,368 INFO L225 Difference]: With dead ends: 533 [2024-11-22 22:32:35,368 INFO L226 Difference]: Without dead ends: 532 [2024-11-22 22:32:35,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3568 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=4405, Invalid=11597, Unknown=0, NotChecked=0, Total=16002 [2024-11-22 22:32:35,373 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 535 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:35,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 305 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 22:32:35,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-22 22:32:35,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 325. [2024-11-22 22:32:35,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 267 states have (on average 1.1161048689138577) internal successors, (298), 267 states have internal predecessors, (298), 29 states have call successors, (29), 28 states have call predecessors, (29), 28 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-22 22:32:35,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 356 transitions. [2024-11-22 22:32:35,394 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 356 transitions. Word has length 114 [2024-11-22 22:32:35,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:35,394 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 356 transitions. [2024-11-22 22:32:35,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 3.3384615384615386) internal successors, (217), 66 states have internal predecessors, (217), 26 states have call successors, (28), 9 states have call predecessors, (28), 9 states have return successors, (28), 26 states have call predecessors, (28), 26 states have call successors, (28) [2024-11-22 22:32:35,395 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 356 transitions. [2024-11-22 22:32:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-22 22:32:35,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:32:35,397 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:35,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 22:32:35,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:32:35,598 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-22 22:32:35,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:32:35,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2144432913, now seen corresponding path program 2 times [2024-11-22 22:32:35,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:32:35,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189739597] [2024-11-22 22:32:35,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:32:35,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:32:35,639 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:32:35,640 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:32:35,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 1634 trivial. 0 not checked. [2024-11-22 22:32:35,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:32:35,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189739597] [2024-11-22 22:32:35,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189739597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:32:35,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:32:35,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 22:32:35,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924052583] [2024-11-22 22:32:35,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:32:35,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 22:32:35,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:32:35,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 22:32:35,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:32:35,864 INFO L87 Difference]: Start difference. First operand 325 states and 356 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:32:35,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:32:35,913 INFO L93 Difference]: Finished difference Result 329 states and 360 transitions. [2024-11-22 22:32:35,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 22:32:35,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 229 [2024-11-22 22:32:35,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:32:35,915 INFO L225 Difference]: With dead ends: 329 [2024-11-22 22:32:35,915 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 22:32:35,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:32:35,916 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:32:35,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 67 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:32:35,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 22:32:35,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 22:32:35,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:32:35,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 22:32:35,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2024-11-22 22:32:35,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:32:35,918 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 22:32:35,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:32:35,918 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 22:32:35,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 22:32:35,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-22 22:32:35,921 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-22 22:32:35,921 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-22 22:32:35,921 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-22 22:32:35,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 22:32:35,923 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:32:35,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 22:32:36,466 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 22:32:36,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:32:36 BoogieIcfgContainer [2024-11-22 22:32:36,483 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 22:32:36,483 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 22:32:36,483 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 22:32:36,483 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 22:32:36,484 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:32:26" (3/4) ... [2024-11-22 22:32:36,486 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 22:32:36,489 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-22 22:32:36,489 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-22 22:32:36,492 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-22 22:32:36,492 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-22 22:32:36,492 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 22:32:36,493 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 22:32:36,563 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 22:32:36,563 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 22:32:36,563 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 22:32:36,564 INFO L158 Benchmark]: Toolchain (without parser) took 10310.42ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 117.7MB in the beginning and 104.7MB in the end (delta: 13.0MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2024-11-22 22:32:36,564 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 22:32:36,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.44ms. Allocated memory is still 151.0MB. Free memory was 117.7MB in the beginning and 105.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 22:32:36,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.07ms. Allocated memory is still 151.0MB. Free memory was 105.1MB in the beginning and 103.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 22:32:36,564 INFO L158 Benchmark]: Boogie Preprocessor took 33.16ms. Allocated memory is still 151.0MB. Free memory was 103.1MB in the beginning and 102.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 22:32:36,565 INFO L158 Benchmark]: RCFGBuilder took 311.97ms. Allocated memory is still 151.0MB. Free memory was 102.0MB in the beginning and 89.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 22:32:36,565 INFO L158 Benchmark]: TraceAbstraction took 9619.70ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 88.5MB in the beginning and 110.0MB in the end (delta: -21.5MB). Peak memory consumption was 104.6MB. Max. memory is 16.1GB. [2024-11-22 22:32:36,565 INFO L158 Benchmark]: Witness Printer took 80.08ms. Allocated memory is still 220.2MB. Free memory was 110.0MB in the beginning and 104.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 22:32:36,566 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.44ms. Allocated memory is still 151.0MB. Free memory was 117.7MB in the beginning and 105.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.07ms. Allocated memory is still 151.0MB. Free memory was 105.1MB in the beginning and 103.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.16ms. Allocated memory is still 151.0MB. Free memory was 103.1MB in the beginning and 102.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.97ms. Allocated memory is still 151.0MB. Free memory was 102.0MB in the beginning and 89.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9619.70ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 88.5MB in the beginning and 110.0MB in the end (delta: -21.5MB). Peak memory consumption was 104.6MB. Max. memory is 16.1GB. * Witness Printer took 80.08ms. Allocated memory is still 220.2MB. Free memory was 110.0MB in the beginning and 104.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 13, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1079 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1079 mSDsluCounter, 1503 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1173 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 994 IncrementalHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 330 mSDtfsCounter, 994 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 818 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4643 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred in iteration=12, InterpolantAutomatonStates: 248, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 356 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1027 NumberOfCodeBlocks, 1027 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1283 ConstructedInterpolants, 0 QuantifiedInterpolants, 2457 SizeOfPredicates, 42 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 25 InterpolantComputations, 8 PerfectInterpolantSequences, 2446/3493 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 100)) || ((101 <= counter) && (counter <= 2147483645))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 100)) || (counter == 0)) - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: ((counter == 0) && (counter == \old(counter))) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-22 22:32:36,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE