./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound10.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 154556615f003714b5a49b3ebe7e74b2231be519e4b6364e10c3e255a1a8cfe1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:57:37,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:57:37,558 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:57:37,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:57:37,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:57:37,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:57:37,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:57:37,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:57:37,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:57:37,585 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:57:37,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:57:37,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:57:37,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:57:37,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:57:37,587 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:57:37,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:57:37,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:57:37,588 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:57:37,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:57:37,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:57:37,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:57:37,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:57:37,592 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:57:37,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:57:37,592 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:57:37,592 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:57:37,592 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:57:37,592 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:57:37,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:57:37,592 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:57:37,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:57:37,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:57:37,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:57:37,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:57:37,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:57:37,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:57:37,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:57:37,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:57:37,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:57:37,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:57:37,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:57:37,596 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:57:37,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:57:37,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:57:37,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 154556615f003714b5a49b3ebe7e74b2231be519e4b6364e10c3e255a1a8cfe1 [2024-10-14 20:57:37,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:57:37,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:57:37,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:57:37,802 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:57:37,802 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:57:37,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound10.c [2024-10-14 20:57:39,001 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:57:39,192 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:57:39,192 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound10.c [2024-10-14 20:57:39,197 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057fc5f02/c190adad6ec543d281b8c6de37e5781f/FLAG81b25b6ab [2024-10-14 20:57:39,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057fc5f02/c190adad6ec543d281b8c6de37e5781f [2024-10-14 20:57:39,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:57:39,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:57:39,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:57:39,583 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:57:39,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:57:39,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2837c315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39, skipping insertion in model container [2024-10-14 20:57:39,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:57:39,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:57:39,761 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:57:39,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:57:39,793 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:57:39,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39 WrapperNode [2024-10-14 20:57:39,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:57:39,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:57:39,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:57:39,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:57:39,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,830 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2024-10-14 20:57:39,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:57:39,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:57:39,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:57:39,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:57:39,840 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,841 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,849 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]. [2024-10-14 20:57:39,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:57:39,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:57:39,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:57:39,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:57:39,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (1/1) ... [2024-10-14 20:57:39,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:57:39,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:39,888 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) [2024-10-14 20:57:39,890 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 [2024-10-14 20:57:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:57:39,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:57:39,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:57:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:57:39,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:57:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:57:39,972 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:57:39,973 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:57:40,340 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-10-14 20:57:40,340 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:57:40,358 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:57:40,358 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:57:40,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:57:40 BoogieIcfgContainer [2024-10-14 20:57:40,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:57:40,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:57:40,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:57:40,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:57:40,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:57:39" (1/3) ... [2024-10-14 20:57:40,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c13fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:57:40, skipping insertion in model container [2024-10-14 20:57:40,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:39" (2/3) ... [2024-10-14 20:57:40,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c13fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:57:40, skipping insertion in model container [2024-10-14 20:57:40,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:57:40" (3/3) ... [2024-10-14 20:57:40,367 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound10.c [2024-10-14 20:57:40,382 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:57:40,382 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-10-14 20:57:40,444 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:57:40,453 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;@73e0e496, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:57:40,453 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-10-14 20:57:40,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 57 states have (on average 1.912280701754386) internal successors, (109), 101 states have internal predecessors, (109), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:57:40,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 20:57:40,462 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:40,462 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 20:57:40,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:40,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:40,468 INFO L85 PathProgramCache]: Analyzing trace with hash 175630532, now seen corresponding path program 1 times [2024-10-14 20:57:40,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:40,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196469828] [2024-10-14 20:57:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:40,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:40,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:40,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196469828] [2024-10-14 20:57:40,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196469828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:40,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:40,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:57:40,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397124231] [2024-10-14 20:57:40,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:40,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:57:40,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:40,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:57:40,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:57:40,603 INFO L87 Difference]: Start difference. First operand has 106 states, 57 states have (on average 1.912280701754386) internal successors, (109), 101 states have internal predecessors, (109), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:40,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:40,629 INFO L93 Difference]: Finished difference Result 210 states and 230 transitions. [2024-10-14 20:57:40,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:57:40,631 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-14 20:57:40,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:40,637 INFO L225 Difference]: With dead ends: 210 [2024-10-14 20:57:40,637 INFO L226 Difference]: Without dead ends: 103 [2024-10-14 20:57:40,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:57:40,641 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:40,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:57:40,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-14 20:57:40,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-14 20:57:40,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 99 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:57:40,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2024-10-14 20:57:40,671 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 5 [2024-10-14 20:57:40,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:40,671 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2024-10-14 20:57:40,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:40,671 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2024-10-14 20:57:40,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 20:57:40,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:40,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 20:57:40,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:57:40,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:40,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:40,672 INFO L85 PathProgramCache]: Analyzing trace with hash 175686625, now seen corresponding path program 1 times [2024-10-14 20:57:40,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:40,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720944858] [2024-10-14 20:57:40,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:40,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:40,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:40,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720944858] [2024-10-14 20:57:40,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720944858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:40,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:40,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:57:40,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991516679] [2024-10-14 20:57:40,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:40,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:40,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:40,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:40,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:40,760 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:40,808 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2024-10-14 20:57:40,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:57:40,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-14 20:57:40,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:40,810 INFO L225 Difference]: With dead ends: 122 [2024-10-14 20:57:40,810 INFO L226 Difference]: Without dead ends: 107 [2024-10-14 20:57:40,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:57:40,811 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 4 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:40,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 305 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:57:40,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-14 20:57:40,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-10-14 20:57:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 60 states have (on average 1.8) internal successors, (108), 103 states have internal predecessors, (108), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:57:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 112 transitions. [2024-10-14 20:57:40,825 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 112 transitions. Word has length 5 [2024-10-14 20:57:40,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:40,825 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 112 transitions. [2024-10-14 20:57:40,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:40,825 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 112 transitions. [2024-10-14 20:57:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:57:40,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:40,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:40,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:57:40,826 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:40,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:40,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1684840623, now seen corresponding path program 1 times [2024-10-14 20:57:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:40,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499800677] [2024-10-14 20:57:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:40,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:40,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735861032] [2024-10-14 20:57:40,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:40,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:40,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:40,848 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) [2024-10-14 20:57:40,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:57:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:57:40,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:41,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:41,043 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:41,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:41,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499800677] [2024-10-14 20:57:41,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:41,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735861032] [2024-10-14 20:57:41,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735861032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:41,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:41,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:41,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222044580] [2024-10-14 20:57:41,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:41,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:57:41,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:41,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:57:41,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:57:41,046 INFO L87 Difference]: Start difference. First operand 107 states and 112 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:41,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:41,375 INFO L93 Difference]: Finished difference Result 146 states and 167 transitions. [2024-10-14 20:57:41,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:57:41,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 20:57:41,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:41,377 INFO L225 Difference]: With dead ends: 146 [2024-10-14 20:57:41,377 INFO L226 Difference]: Without dead ends: 135 [2024-10-14 20:57:41,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:57:41,379 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 161 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:41,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 152 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:57:41,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-10-14 20:57:41,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2024-10-14 20:57:41,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 83 states have (on average 1.6987951807228916) internal successors, (141), 124 states have internal predecessors, (141), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:57:41,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2024-10-14 20:57:41,394 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 8 [2024-10-14 20:57:41,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:41,394 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions. [2024-10-14 20:57:41,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions. [2024-10-14 20:57:41,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 20:57:41,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:41,395 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:41,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:41,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:41,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:41,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:41,596 INFO L85 PathProgramCache]: Analyzing trace with hash -690451704, now seen corresponding path program 1 times [2024-10-14 20:57:41,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:41,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017098336] [2024-10-14 20:57:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:41,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:41,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443430771] [2024-10-14 20:57:41,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:41,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:41,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:41,607 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) [2024-10-14 20:57:41,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:57:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:41,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:57:41,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:41,709 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:41,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017098336] [2024-10-14 20:57:41,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443430771] [2024-10-14 20:57:41,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443430771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:41,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:41,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915459945] [2024-10-14 20:57:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:41,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:57:41,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:41,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:57:41,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:57:41,711 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:41,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:41,936 INFO L93 Difference]: Finished difference Result 181 states and 221 transitions. [2024-10-14 20:57:41,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:57:41,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 20:57:41,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:41,938 INFO L225 Difference]: With dead ends: 181 [2024-10-14 20:57:41,938 INFO L226 Difference]: Without dead ends: 163 [2024-10-14 20:57:41,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:57:41,939 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 177 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:41,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 135 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:41,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-14 20:57:41,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 156. [2024-10-14 20:57:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 110 states have (on average 1.6363636363636365) internal successors, (180), 149 states have internal predecessors, (180), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:57:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 190 transitions. [2024-10-14 20:57:41,947 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 190 transitions. Word has length 9 [2024-10-14 20:57:41,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:41,947 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 190 transitions. [2024-10-14 20:57:41,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:41,947 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 190 transitions. [2024-10-14 20:57:41,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-14 20:57:41,948 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:41,948 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:41,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:57:42,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-10-14 20:57:42,152 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:42,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:42,152 INFO L85 PathProgramCache]: Analyzing trace with hash 70833715, now seen corresponding path program 1 times [2024-10-14 20:57:42,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:42,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17944505] [2024-10-14 20:57:42,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:42,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:42,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433329925] [2024-10-14 20:57:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:42,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:42,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:42,163 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) [2024-10-14 20:57:42,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:57:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:42,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:57:42,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:42,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:42,306 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:42,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:42,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17944505] [2024-10-14 20:57:42,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:42,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433329925] [2024-10-14 20:57:42,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433329925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:42,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:42,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:42,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437251376] [2024-10-14 20:57:42,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:42,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:57:42,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:42,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:57:42,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:57:42,308 INFO L87 Difference]: Start difference. First operand 156 states and 190 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:42,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:42,533 INFO L93 Difference]: Finished difference Result 164 states and 197 transitions. [2024-10-14 20:57:42,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:57:42,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-14 20:57:42,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:42,535 INFO L225 Difference]: With dead ends: 164 [2024-10-14 20:57:42,535 INFO L226 Difference]: Without dead ends: 163 [2024-10-14 20:57:42,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:57:42,536 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 145 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:42,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 159 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-14 20:57:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 156. [2024-10-14 20:57:42,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 110 states have (on average 1.6272727272727272) internal successors, (179), 149 states have internal predecessors, (179), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:57:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 189 transitions. [2024-10-14 20:57:42,551 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 189 transitions. Word has length 10 [2024-10-14 20:57:42,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:42,552 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 189 transitions. [2024-10-14 20:57:42,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:57:42,552 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 189 transitions. [2024-10-14 20:57:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-14 20:57:42,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:42,552 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:42,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:42,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:42,753 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:42,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:42,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2099122070, now seen corresponding path program 1 times [2024-10-14 20:57:42,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:42,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707722868] [2024-10-14 20:57:42,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:42,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:42,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264276532] [2024-10-14 20:57:42,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:42,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:42,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:42,763 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) [2024-10-14 20:57:42,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:57:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:42,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:57:42,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:42,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:42,876 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:42,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:42,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707722868] [2024-10-14 20:57:42,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:42,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264276532] [2024-10-14 20:57:42,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264276532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:42,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:42,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:42,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231445305] [2024-10-14 20:57:42,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:42,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:57:42,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:42,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:57:42,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:57:42,878 INFO L87 Difference]: Start difference. First operand 156 states and 189 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-14 20:57:43,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:43,087 INFO L93 Difference]: Finished difference Result 161 states and 189 transitions. [2024-10-14 20:57:43,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:57:43,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-14 20:57:43,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:43,088 INFO L225 Difference]: With dead ends: 161 [2024-10-14 20:57:43,088 INFO L226 Difference]: Without dead ends: 158 [2024-10-14 20:57:43,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:57:43,089 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 163 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:43,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 153 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:43,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-14 20:57:43,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2024-10-14 20:57:43,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 110 states have (on average 1.5909090909090908) internal successors, (175), 149 states have internal predecessors, (175), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:57:43,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 185 transitions. [2024-10-14 20:57:43,095 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 185 transitions. Word has length 11 [2024-10-14 20:57:43,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:43,095 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 185 transitions. [2024-10-14 20:57:43,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-10-14 20:57:43,096 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 185 transitions. [2024-10-14 20:57:43,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 20:57:43,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:43,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:43,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:57:43,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:43,301 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:43,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:43,301 INFO L85 PathProgramCache]: Analyzing trace with hash -648274667, now seen corresponding path program 1 times [2024-10-14 20:57:43,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:43,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486986893] [2024-10-14 20:57:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:43,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:43,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:43,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:43,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486986893] [2024-10-14 20:57:43,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486986893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:43,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:43,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:43,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074959436] [2024-10-14 20:57:43,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:43,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:43,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:43,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:43,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:43,351 INFO L87 Difference]: Start difference. First operand 156 states and 185 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-10-14 20:57:44,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:44,352 INFO L93 Difference]: Finished difference Result 259 states and 305 transitions. [2024-10-14 20:57:44,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:44,352 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-14 20:57:44,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:44,354 INFO L225 Difference]: With dead ends: 259 [2024-10-14 20:57:44,354 INFO L226 Difference]: Without dead ends: 258 [2024-10-14 20:57:44,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:44,354 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 76 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:44,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 184 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 20:57:44,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-10-14 20:57:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 180. [2024-10-14 20:57:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 133 states have (on average 1.6015037593984962) internal successors, (213), 172 states have internal predecessors, (213), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:57:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 225 transitions. [2024-10-14 20:57:44,378 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 225 transitions. Word has length 12 [2024-10-14 20:57:44,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:44,378 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 225 transitions. [2024-10-14 20:57:44,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-10-14 20:57:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 225 transitions. [2024-10-14 20:57:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:57:44,379 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:44,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:44,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 20:57:44,379 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:44,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:44,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1378321868, now seen corresponding path program 1 times [2024-10-14 20:57:44,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:44,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616618331] [2024-10-14 20:57:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:44,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:44,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:44,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:44,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616618331] [2024-10-14 20:57:44,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616618331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:44,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:44,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:44,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306797160] [2024-10-14 20:57:44,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:44,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:44,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:44,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:44,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:44,591 INFO L87 Difference]: Start difference. First operand 180 states and 225 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-14 20:57:46,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:46,108 INFO L93 Difference]: Finished difference Result 259 states and 303 transitions. [2024-10-14 20:57:46,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:46,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-14 20:57:46,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:46,110 INFO L225 Difference]: With dead ends: 259 [2024-10-14 20:57:46,110 INFO L226 Difference]: Without dead ends: 258 [2024-10-14 20:57:46,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:46,111 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 94 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:46,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 176 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 20:57:46,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-10-14 20:57:46,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 180. [2024-10-14 20:57:46,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 133 states have (on average 1.586466165413534) internal successors, (211), 172 states have internal predecessors, (211), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:57:46,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2024-10-14 20:57:46,117 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 13 [2024-10-14 20:57:46,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:46,117 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2024-10-14 20:57:46,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-10-14 20:57:46,117 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2024-10-14 20:57:46,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-14 20:57:46,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:46,118 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:46,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 20:57:46,118 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:46,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:46,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1153187873, now seen corresponding path program 1 times [2024-10-14 20:57:46,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:46,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025819387] [2024-10-14 20:57:46,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:46,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:57:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:46,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:46,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025819387] [2024-10-14 20:57:46,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025819387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:46,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:46,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:57:46,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077600754] [2024-10-14 20:57:46,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:46,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:57:46,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:46,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:57:46,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:57:46,197 INFO L87 Difference]: Start difference. First operand 180 states and 223 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:46,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:46,286 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2024-10-14 20:57:46,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:57:46,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-10-14 20:57:46,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:46,287 INFO L225 Difference]: With dead ends: 258 [2024-10-14 20:57:46,287 INFO L226 Difference]: Without dead ends: 256 [2024-10-14 20:57:46,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:57:46,288 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 57 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:46,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 150 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:46,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-10-14 20:57:46,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 229. [2024-10-14 20:57:46,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.6574585635359116) internal successors, (300), 220 states have internal predecessors, (300), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 20:57:46,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 314 transitions. [2024-10-14 20:57:46,294 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 314 transitions. Word has length 27 [2024-10-14 20:57:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:46,294 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 314 transitions. [2024-10-14 20:57:46,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:46,294 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 314 transitions. [2024-10-14 20:57:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-14 20:57:46,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:46,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:46,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 20:57:46,295 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:46,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:46,295 INFO L85 PathProgramCache]: Analyzing trace with hash -724674130, now seen corresponding path program 1 times [2024-10-14 20:57:46,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:46,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266010420] [2024-10-14 20:57:46,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:46,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:46,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818625543] [2024-10-14 20:57:46,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:46,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:46,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:46,316 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) [2024-10-14 20:57:46,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:57:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:57:46,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:46,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:46,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266010420] [2024-10-14 20:57:46,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:46,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818625543] [2024-10-14 20:57:46,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818625543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:46,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912927003] [2024-10-14 20:57:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:46,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:46,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:46,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:46,417 INFO L87 Difference]: Start difference. First operand 229 states and 314 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:46,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:46,625 INFO L93 Difference]: Finished difference Result 281 states and 386 transitions. [2024-10-14 20:57:46,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:46,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-10-14 20:57:46,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:46,627 INFO L225 Difference]: With dead ends: 281 [2024-10-14 20:57:46,627 INFO L226 Difference]: Without dead ends: 277 [2024-10-14 20:57:46,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:57:46,627 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 165 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:46,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 105 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:46,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-10-14 20:57:46,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 257. [2024-10-14 20:57:46,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 208 states have (on average 1.6586538461538463) internal successors, (345), 247 states have internal predecessors, (345), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:46,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 361 transitions. [2024-10-14 20:57:46,636 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 361 transitions. Word has length 27 [2024-10-14 20:57:46,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:46,636 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 361 transitions. [2024-10-14 20:57:46,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:46,638 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 361 transitions. [2024-10-14 20:57:46,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-14 20:57:46,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:46,639 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:46,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 20:57:46,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 20:57:46,840 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:46,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1405184119, now seen corresponding path program 1 times [2024-10-14 20:57:46,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:46,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481766273] [2024-10-14 20:57:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:46,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:57:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:46,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:46,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481766273] [2024-10-14 20:57:46,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481766273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:46,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:46,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:46,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752103503] [2024-10-14 20:57:46,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:46,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:46,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:46,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:46,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:46,906 INFO L87 Difference]: Start difference. First operand 257 states and 361 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:47,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:47,471 INFO L93 Difference]: Finished difference Result 341 states and 453 transitions. [2024-10-14 20:57:47,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:47,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-10-14 20:57:47,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:47,473 INFO L225 Difference]: With dead ends: 341 [2024-10-14 20:57:47,473 INFO L226 Difference]: Without dead ends: 340 [2024-10-14 20:57:47,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:47,474 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 64 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:47,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 225 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:57:47,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-14 20:57:47,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 267. [2024-10-14 20:57:47,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 218 states have (on average 1.651376146788991) internal successors, (360), 257 states have internal predecessors, (360), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:47,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 376 transitions. [2024-10-14 20:57:47,481 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 376 transitions. Word has length 28 [2024-10-14 20:57:47,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:47,482 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 376 transitions. [2024-10-14 20:57:47,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:47,482 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 376 transitions. [2024-10-14 20:57:47,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-14 20:57:47,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:47,484 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:47,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 20:57:47,484 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:47,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:47,485 INFO L85 PathProgramCache]: Analyzing trace with hash -990061430, now seen corresponding path program 1 times [2024-10-14 20:57:47,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:47,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626490174] [2024-10-14 20:57:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:47,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:47,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705030756] [2024-10-14 20:57:47,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:47,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:47,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:47,508 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) [2024-10-14 20:57:47,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:57:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:47,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:57:47,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:47,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:47,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:47,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:47,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626490174] [2024-10-14 20:57:47,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:47,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705030756] [2024-10-14 20:57:47,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705030756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:47,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:47,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:47,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574132119] [2024-10-14 20:57:47,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:47,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:47,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:47,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:47,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:47,598 INFO L87 Difference]: Start difference. First operand 267 states and 376 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:47,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:47,871 INFO L93 Difference]: Finished difference Result 284 states and 383 transitions. [2024-10-14 20:57:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:47,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2024-10-14 20:57:47,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:47,872 INFO L225 Difference]: With dead ends: 284 [2024-10-14 20:57:47,872 INFO L226 Difference]: Without dead ends: 280 [2024-10-14 20:57:47,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:57:47,873 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 213 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:47,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 75 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:57:47,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-10-14 20:57:47,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 267. [2024-10-14 20:57:47,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 218 states have (on average 1.628440366972477) internal successors, (355), 257 states have internal predecessors, (355), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:47,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 371 transitions. [2024-10-14 20:57:47,880 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 371 transitions. Word has length 28 [2024-10-14 20:57:47,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:47,880 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 371 transitions. [2024-10-14 20:57:47,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:47,880 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 371 transitions. [2024-10-14 20:57:47,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-14 20:57:47,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:47,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:47,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:48,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:48,085 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:48,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:48,085 INFO L85 PathProgramCache]: Analyzing trace with hash -611034622, now seen corresponding path program 1 times [2024-10-14 20:57:48,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:48,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448107093] [2024-10-14 20:57:48,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:48,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:48,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:57:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:48,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:48,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:48,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448107093] [2024-10-14 20:57:48,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448107093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:48,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:48,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:48,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250362424] [2024-10-14 20:57:48,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:48,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:48,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:48,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:48,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:48,175 INFO L87 Difference]: Start difference. First operand 267 states and 371 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:48,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:48,907 INFO L93 Difference]: Finished difference Result 341 states and 445 transitions. [2024-10-14 20:57:48,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:48,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-10-14 20:57:48,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:48,909 INFO L225 Difference]: With dead ends: 341 [2024-10-14 20:57:48,909 INFO L226 Difference]: Without dead ends: 340 [2024-10-14 20:57:48,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:48,910 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 63 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:48,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 217 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:57:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-14 20:57:48,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 269. [2024-10-14 20:57:48,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 220 states have (on average 1.6227272727272728) internal successors, (357), 259 states have internal predecessors, (357), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:48,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 373 transitions. [2024-10-14 20:57:48,916 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 373 transitions. Word has length 29 [2024-10-14 20:57:48,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:48,917 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 373 transitions. [2024-10-14 20:57:48,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 373 transitions. [2024-10-14 20:57:48,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-14 20:57:48,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:48,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:48,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 20:57:48,918 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:48,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:48,918 INFO L85 PathProgramCache]: Analyzing trace with hash -212964752, now seen corresponding path program 1 times [2024-10-14 20:57:48,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:48,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242799335] [2024-10-14 20:57:48,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:48,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:48,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:57:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:48,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:48,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242799335] [2024-10-14 20:57:48,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242799335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:48,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:48,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:57:48,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010269002] [2024-10-14 20:57:48,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:48,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:57:48,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:48,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:57:48,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:57:48,999 INFO L87 Difference]: Start difference. First operand 269 states and 373 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:49,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:49,478 INFO L93 Difference]: Finished difference Result 383 states and 552 transitions. [2024-10-14 20:57:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:57:49,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-10-14 20:57:49,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:49,479 INFO L225 Difference]: With dead ends: 383 [2024-10-14 20:57:49,480 INFO L226 Difference]: Without dead ends: 381 [2024-10-14 20:57:49,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:49,480 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 295 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:49,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 113 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:57:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-10-14 20:57:49,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 275. [2024-10-14 20:57:49,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 226 states have (on average 1.6106194690265487) internal successors, (364), 265 states have internal predecessors, (364), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 380 transitions. [2024-10-14 20:57:49,488 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 380 transitions. Word has length 29 [2024-10-14 20:57:49,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:49,489 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 380 transitions. [2024-10-14 20:57:49,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:49,489 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 380 transitions. [2024-10-14 20:57:49,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-14 20:57:49,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:49,489 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:49,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 20:57:49,490 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:49,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:49,490 INFO L85 PathProgramCache]: Analyzing trace with hash -627133136, now seen corresponding path program 1 times [2024-10-14 20:57:49,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:49,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10743004] [2024-10-14 20:57:49,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:49,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:49,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:57:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:49,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:49,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:49,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10743004] [2024-10-14 20:57:49,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10743004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:49,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:49,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:49,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393698536] [2024-10-14 20:57:49,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:49,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:49,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:49,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:49,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:49,539 INFO L87 Difference]: Start difference. First operand 275 states and 380 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:50,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:50,118 INFO L93 Difference]: Finished difference Result 341 states and 441 transitions. [2024-10-14 20:57:50,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:50,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-10-14 20:57:50,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:50,119 INFO L225 Difference]: With dead ends: 341 [2024-10-14 20:57:50,119 INFO L226 Difference]: Without dead ends: 340 [2024-10-14 20:57:50,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:50,120 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 64 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:50,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 210 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:57:50,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-14 20:57:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 284. [2024-10-14 20:57:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 235 states have (on average 1.6085106382978724) internal successors, (378), 274 states have internal predecessors, (378), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:50,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 394 transitions. [2024-10-14 20:57:50,127 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 394 transitions. Word has length 29 [2024-10-14 20:57:50,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:50,127 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 394 transitions. [2024-10-14 20:57:50,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:50,128 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 394 transitions. [2024-10-14 20:57:50,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-14 20:57:50,128 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:50,128 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:50,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 20:57:50,129 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:50,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:50,129 INFO L85 PathProgramCache]: Analyzing trace with hash 823564061, now seen corresponding path program 1 times [2024-10-14 20:57:50,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:50,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79571854] [2024-10-14 20:57:50,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:50,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:50,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:57:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:50,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:50,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79571854] [2024-10-14 20:57:50,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79571854] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:50,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802355556] [2024-10-14 20:57:50,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:50,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:50,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:50,205 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) [2024-10-14 20:57:50,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:57:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:50,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:57:50,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:50,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:50,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802355556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:50,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:50,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-14 20:57:50,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586315855] [2024-10-14 20:57:50,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:50,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:57:50,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:50,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:57:50,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:57:50,284 INFO L87 Difference]: Start difference. First operand 284 states and 394 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:50,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:50,302 INFO L93 Difference]: Finished difference Result 284 states and 394 transitions. [2024-10-14 20:57:50,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:50,302 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-10-14 20:57:50,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:50,303 INFO L225 Difference]: With dead ends: 284 [2024-10-14 20:57:50,303 INFO L226 Difference]: Without dead ends: 283 [2024-10-14 20:57:50,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:57:50,304 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 81 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:50,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 288 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:57:50,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-10-14 20:57:50,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2024-10-14 20:57:50,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 235 states have (on average 1.5872340425531914) internal successors, (373), 273 states have internal predecessors, (373), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 389 transitions. [2024-10-14 20:57:50,310 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 389 transitions. Word has length 30 [2024-10-14 20:57:50,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:50,311 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 389 transitions. [2024-10-14 20:57:50,311 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:50,311 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 389 transitions. [2024-10-14 20:57:50,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-14 20:57:50,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:50,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:50,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:57:50,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:50,516 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:50,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:50,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1988027418, now seen corresponding path program 1 times [2024-10-14 20:57:50,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:50,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898074697] [2024-10-14 20:57:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:50,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:50,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:57:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:50,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:50,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898074697] [2024-10-14 20:57:50,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898074697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:50,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:50,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:57:50,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063433467] [2024-10-14 20:57:50,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:50,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:57:50,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:50,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:57:50,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:57:50,571 INFO L87 Difference]: Start difference. First operand 283 states and 389 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:50,876 INFO L93 Difference]: Finished difference Result 291 states and 396 transitions. [2024-10-14 20:57:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:57:50,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-10-14 20:57:50,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:50,878 INFO L225 Difference]: With dead ends: 291 [2024-10-14 20:57:50,878 INFO L226 Difference]: Without dead ends: 289 [2024-10-14 20:57:50,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:50,879 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 276 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:50,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 76 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:57:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-10-14 20:57:50,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 283. [2024-10-14 20:57:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 235 states have (on average 1.574468085106383) internal successors, (370), 273 states have internal predecessors, (370), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:50,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 386 transitions. [2024-10-14 20:57:50,886 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 386 transitions. Word has length 30 [2024-10-14 20:57:50,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:50,886 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 386 transitions. [2024-10-14 20:57:50,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 386 transitions. [2024-10-14 20:57:50,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-14 20:57:50,886 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:50,887 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:50,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 20:57:50,887 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:50,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:50,887 INFO L85 PathProgramCache]: Analyzing trace with hash 2033709388, now seen corresponding path program 1 times [2024-10-14 20:57:50,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:50,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853121231] [2024-10-14 20:57:50,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:50,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:50,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:57:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:50,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:50,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853121231] [2024-10-14 20:57:50,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853121231] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:50,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:50,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:50,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938774764] [2024-10-14 20:57:50,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:50,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:50,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:50,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:50,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:50,968 INFO L87 Difference]: Start difference. First operand 283 states and 386 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:51,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:51,745 INFO L93 Difference]: Finished difference Result 339 states and 430 transitions. [2024-10-14 20:57:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:51,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-10-14 20:57:51,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:51,747 INFO L225 Difference]: With dead ends: 339 [2024-10-14 20:57:51,747 INFO L226 Difference]: Without dead ends: 338 [2024-10-14 20:57:51,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:51,747 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 61 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:51,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 218 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 20:57:51,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-10-14 20:57:51,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 285. [2024-10-14 20:57:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 237 states have (on average 1.5696202531645569) internal successors, (372), 275 states have internal predecessors, (372), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:51,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 388 transitions. [2024-10-14 20:57:51,758 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 388 transitions. Word has length 30 [2024-10-14 20:57:51,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:51,759 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 388 transitions. [2024-10-14 20:57:51,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 388 transitions. [2024-10-14 20:57:51,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-14 20:57:51,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:51,759 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:51,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 20:57:51,761 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:51,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:51,761 INFO L85 PathProgramCache]: Analyzing trace with hash -239317837, now seen corresponding path program 1 times [2024-10-14 20:57:51,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:51,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775398512] [2024-10-14 20:57:51,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:51,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:51,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:57:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:51,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:51,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775398512] [2024-10-14 20:57:51,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775398512] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:51,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110025566] [2024-10-14 20:57:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:51,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:51,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:51,831 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:57:51,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:57:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:51,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:57:51,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:51,903 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:51,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110025566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:51,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:51,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-14 20:57:51,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597562427] [2024-10-14 20:57:51,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:51,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:57:51,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:51,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:57:51,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:57:51,905 INFO L87 Difference]: Start difference. First operand 285 states and 388 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:51,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:51,938 INFO L93 Difference]: Finished difference Result 300 states and 403 transitions. [2024-10-14 20:57:51,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:57:51,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-10-14 20:57:51,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:51,940 INFO L225 Difference]: With dead ends: 300 [2024-10-14 20:57:51,940 INFO L226 Difference]: Without dead ends: 299 [2024-10-14 20:57:51,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:57:51,941 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 79 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:51,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 315 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:57:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-10-14 20:57:51,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 294. [2024-10-14 20:57:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 244 states have (on average 1.5327868852459017) internal successors, (374), 283 states have internal predecessors, (374), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:57:51,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 394 transitions. [2024-10-14 20:57:51,949 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 394 transitions. Word has length 31 [2024-10-14 20:57:51,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:51,949 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 394 transitions. [2024-10-14 20:57:51,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:51,949 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 394 transitions. [2024-10-14 20:57:51,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-14 20:57:51,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:51,950 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:51,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 20:57:52,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:52,150 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:52,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1943794325, now seen corresponding path program 1 times [2024-10-14 20:57:52,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:52,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562171254] [2024-10-14 20:57:52,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:52,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:52,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318077110] [2024-10-14 20:57:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:52,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:52,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:52,163 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:57:52,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:57:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 20:57:52,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:52,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:54,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:54,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562171254] [2024-10-14 20:57:54,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:54,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318077110] [2024-10-14 20:57:54,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318077110] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:54,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:57:54,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 14 [2024-10-14 20:57:54,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915840533] [2024-10-14 20:57:54,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:54,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 20:57:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:54,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 20:57:54,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:57:54,210 INFO L87 Difference]: Start difference. First operand 294 states and 394 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:57:58,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:58,651 INFO L93 Difference]: Finished difference Result 586 states and 833 transitions. [2024-10-14 20:57:58,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 20:57:58,652 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2024-10-14 20:57:58,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:58,655 INFO L225 Difference]: With dead ends: 586 [2024-10-14 20:57:58,656 INFO L226 Difference]: Without dead ends: 559 [2024-10-14 20:57:58,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=322, Invalid=670, Unknown=0, NotChecked=0, Total=992 [2024-10-14 20:57:58,657 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 688 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:58,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 122 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-14 20:57:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-10-14 20:57:58,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 363. [2024-10-14 20:57:58,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 313 states have (on average 1.488817891373802) internal successors, (466), 350 states have internal predecessors, (466), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:57:58,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 488 transitions. [2024-10-14 20:57:58,674 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 488 transitions. Word has length 33 [2024-10-14 20:57:58,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:58,674 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 488 transitions. [2024-10-14 20:57:58,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:57:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 488 transitions. [2024-10-14 20:57:58,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-14 20:57:58,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:58,675 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:58,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 20:57:58,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:58,876 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:58,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:58,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2020904180, now seen corresponding path program 1 times [2024-10-14 20:57:58,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:58,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057658169] [2024-10-14 20:57:58,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:58,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:58,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364927203] [2024-10-14 20:57:58,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:58,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:58,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:58,896 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:57:58,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:57:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:58,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:57:58,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:59,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:57:59,056 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:59,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:59,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057658169] [2024-10-14 20:57:59,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:59,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364927203] [2024-10-14 20:57:59,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364927203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:59,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:59,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:57:59,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662927897] [2024-10-14 20:57:59,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:59,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:57:59,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:59,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:57:59,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:57:59,057 INFO L87 Difference]: Start difference. First operand 363 states and 488 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:59,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:59,656 INFO L93 Difference]: Finished difference Result 457 states and 625 transitions. [2024-10-14 20:57:59,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:57:59,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-10-14 20:57:59,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:59,658 INFO L225 Difference]: With dead ends: 457 [2024-10-14 20:57:59,658 INFO L226 Difference]: Without dead ends: 450 [2024-10-14 20:57:59,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:59,659 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 240 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:59,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 104 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:57:59,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-10-14 20:57:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 380. [2024-10-14 20:57:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 330 states have (on average 1.4848484848484849) internal successors, (490), 367 states have internal predecessors, (490), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:57:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 512 transitions. [2024-10-14 20:57:59,674 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 512 transitions. Word has length 33 [2024-10-14 20:57:59,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:59,674 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 512 transitions. [2024-10-14 20:57:59,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:57:59,675 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 512 transitions. [2024-10-14 20:57:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 20:57:59,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:59,675 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:59,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 20:57:59,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-14 20:57:59,880 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:57:59,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:59,880 INFO L85 PathProgramCache]: Analyzing trace with hash 128081988, now seen corresponding path program 1 times [2024-10-14 20:57:59,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:59,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514922501] [2024-10-14 20:57:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:59,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:59,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938992255] [2024-10-14 20:57:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:59,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:59,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:59,895 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:57:59,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:57:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:59,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 20:57:59,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:00,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:02,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:02,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:02,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514922501] [2024-10-14 20:58:02,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:02,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938992255] [2024-10-14 20:58:02,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938992255] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:58:02,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:58:02,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 14 [2024-10-14 20:58:02,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291678568] [2024-10-14 20:58:02,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:02,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 20:58:02,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:02,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 20:58:02,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:58:02,172 INFO L87 Difference]: Start difference. First operand 380 states and 512 transitions. Second operand has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:58:07,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:07,218 INFO L93 Difference]: Finished difference Result 601 states and 836 transitions. [2024-10-14 20:58:07,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 20:58:07,219 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2024-10-14 20:58:07,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:07,221 INFO L225 Difference]: With dead ends: 601 [2024-10-14 20:58:07,221 INFO L226 Difference]: Without dead ends: 567 [2024-10-14 20:58:07,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=283, Invalid=587, Unknown=0, NotChecked=0, Total=870 [2024-10-14 20:58:07,224 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 597 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:07,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 127 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-10-14 20:58:07,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-10-14 20:58:07,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 412. [2024-10-14 20:58:07,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 363 states have (on average 1.4462809917355373) internal successors, (525), 399 states have internal predecessors, (525), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:07,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 545 transitions. [2024-10-14 20:58:07,247 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 545 transitions. Word has length 34 [2024-10-14 20:58:07,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:07,247 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 545 transitions. [2024-10-14 20:58:07,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:58:07,247 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 545 transitions. [2024-10-14 20:58:07,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 20:58:07,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:07,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:07,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:07,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-14 20:58:07,452 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:07,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1776479714, now seen corresponding path program 1 times [2024-10-14 20:58:07,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:07,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981155301] [2024-10-14 20:58:07,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:07,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:07,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702429885] [2024-10-14 20:58:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:07,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:07,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:07,468 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:07,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:58:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:07,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:58:07,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:07,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:07,621 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:58:07,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:07,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981155301] [2024-10-14 20:58:07,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:07,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702429885] [2024-10-14 20:58:07,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702429885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:07,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:07,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:58:07,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521592541] [2024-10-14 20:58:07,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:07,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:58:07,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:07,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:58:07,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:58:07,623 INFO L87 Difference]: Start difference. First operand 412 states and 545 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:08,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:08,113 INFO L93 Difference]: Finished difference Result 449 states and 587 transitions. [2024-10-14 20:58:08,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:58:08,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-10-14 20:58:08,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:08,115 INFO L225 Difference]: With dead ends: 449 [2024-10-14 20:58:08,115 INFO L226 Difference]: Without dead ends: 444 [2024-10-14 20:58:08,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:58:08,115 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 220 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:08,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 103 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:58:08,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-10-14 20:58:08,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 410. [2024-10-14 20:58:08,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 361 states have (on average 1.4238227146814404) internal successors, (514), 397 states have internal predecessors, (514), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:08,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 534 transitions. [2024-10-14 20:58:08,134 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 534 transitions. Word has length 34 [2024-10-14 20:58:08,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:08,134 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 534 transitions. [2024-10-14 20:58:08,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:08,134 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 534 transitions. [2024-10-14 20:58:08,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-14 20:58:08,134 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:08,135 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:08,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 20:58:08,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-14 20:58:08,339 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:08,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:08,339 INFO L85 PathProgramCache]: Analyzing trace with hash -324425609, now seen corresponding path program 1 times [2024-10-14 20:58:08,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:08,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250671303] [2024-10-14 20:58:08,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:08,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:08,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478112910] [2024-10-14 20:58:08,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:08,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:08,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:08,350 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:08,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 20:58:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:08,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 20:58:08,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:08,670 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:11,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:11,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250671303] [2024-10-14 20:58:11,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:11,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478112910] [2024-10-14 20:58:11,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478112910] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:11,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:11,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2024-10-14 20:58:11,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057034419] [2024-10-14 20:58:11,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:11,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:58:11,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:11,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:58:11,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:58:11,328 INFO L87 Difference]: Start difference. First operand 410 states and 534 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:14,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:14,893 INFO L93 Difference]: Finished difference Result 418 states and 542 transitions. [2024-10-14 20:58:14,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:58:14,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-10-14 20:58:14,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:14,895 INFO L225 Difference]: With dead ends: 418 [2024-10-14 20:58:14,895 INFO L226 Difference]: Without dead ends: 417 [2024-10-14 20:58:14,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:58:14,895 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 39 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:14,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 101 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-14 20:58:14,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-10-14 20:58:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-10-14 20:58:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 368 states have (on average 1.4103260869565217) internal successors, (519), 404 states have internal predecessors, (519), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:14,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 539 transitions. [2024-10-14 20:58:14,915 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 539 transitions. Word has length 35 [2024-10-14 20:58:14,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:14,915 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 539 transitions. [2024-10-14 20:58:14,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:14,916 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 539 transitions. [2024-10-14 20:58:14,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-14 20:58:14,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:14,916 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:14,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:15,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-14 20:58:15,121 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:15,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:15,121 INFO L85 PathProgramCache]: Analyzing trace with hash 763703862, now seen corresponding path program 1 times [2024-10-14 20:58:15,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:15,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134782105] [2024-10-14 20:58:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:15,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:15,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:58:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:15,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:15,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134782105] [2024-10-14 20:58:15,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134782105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:15,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:15,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:58:15,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386310456] [2024-10-14 20:58:15,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:15,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:58:15,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:15,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:58:15,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:58:15,172 INFO L87 Difference]: Start difference. First operand 417 states and 539 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:15,750 INFO L93 Difference]: Finished difference Result 444 states and 560 transitions. [2024-10-14 20:58:15,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:58:15,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-10-14 20:58:15,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:15,752 INFO L225 Difference]: With dead ends: 444 [2024-10-14 20:58:15,752 INFO L226 Difference]: Without dead ends: 443 [2024-10-14 20:58:15,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:58:15,753 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 34 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:15,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 186 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:58:15,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-14 20:58:15,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 428. [2024-10-14 20:58:15,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 379 states have (on average 1.4142480211081794) internal successors, (536), 415 states have internal predecessors, (536), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 556 transitions. [2024-10-14 20:58:15,775 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 556 transitions. Word has length 35 [2024-10-14 20:58:15,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:15,776 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 556 transitions. [2024-10-14 20:58:15,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:15,777 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 556 transitions. [2024-10-14 20:58:15,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 20:58:15,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:15,777 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:15,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 20:58:15,777 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:15,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:15,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1467259226, now seen corresponding path program 1 times [2024-10-14 20:58:15,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:15,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164986185] [2024-10-14 20:58:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:15,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:15,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744009503] [2024-10-14 20:58:15,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:15,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:15,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:15,790 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:15,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 20:58:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:15,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 20:58:15,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:16,045 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:16,045 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:17,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:17,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164986185] [2024-10-14 20:58:17,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:17,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744009503] [2024-10-14 20:58:17,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744009503] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:17,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:17,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2024-10-14 20:58:17,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556767672] [2024-10-14 20:58:17,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:17,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:58:17,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:17,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:58:17,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:58:17,985 INFO L87 Difference]: Start difference. First operand 428 states and 556 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:21,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:21,872 INFO L93 Difference]: Finished difference Result 430 states and 558 transitions. [2024-10-14 20:58:21,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:58:21,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-10-14 20:58:21,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:21,874 INFO L225 Difference]: With dead ends: 430 [2024-10-14 20:58:21,874 INFO L226 Difference]: Without dead ends: 429 [2024-10-14 20:58:21,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:58:21,874 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 16 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:21,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 109 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-14 20:58:21,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-10-14 20:58:21,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2024-10-14 20:58:21,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 380 states have (on average 1.4078947368421053) internal successors, (535), 416 states have internal predecessors, (535), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 555 transitions. [2024-10-14 20:58:21,894 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 555 transitions. Word has length 36 [2024-10-14 20:58:21,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:21,894 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 555 transitions. [2024-10-14 20:58:21,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:21,894 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 555 transitions. [2024-10-14 20:58:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 20:58:21,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:21,895 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:21,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-14 20:58:22,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:22,100 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:22,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:22,100 INFO L85 PathProgramCache]: Analyzing trace with hash 407056624, now seen corresponding path program 1 times [2024-10-14 20:58:22,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:22,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353399790] [2024-10-14 20:58:22,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:22,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:22,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262339969] [2024-10-14 20:58:22,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:22,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:22,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:22,113 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:22,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 20:58:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:22,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:58:22,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:22,254 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:22,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:58:22,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:22,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353399790] [2024-10-14 20:58:22,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:22,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262339969] [2024-10-14 20:58:22,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262339969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:22,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:22,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 20:58:22,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337433921] [2024-10-14 20:58:22,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:22,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:58:22,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:22,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:58:22,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:58:22,256 INFO L87 Difference]: Start difference. First operand 429 states and 555 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:22,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:22,530 INFO L93 Difference]: Finished difference Result 432 states and 557 transitions. [2024-10-14 20:58:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:58:22,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-10-14 20:58:22,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:22,532 INFO L225 Difference]: With dead ends: 432 [2024-10-14 20:58:22,532 INFO L226 Difference]: Without dead ends: 431 [2024-10-14 20:58:22,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:58:22,536 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 156 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:22,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 184 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:58:22,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-10-14 20:58:22,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2024-10-14 20:58:22,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 380 states have (on average 1.4052631578947368) internal successors, (534), 416 states have internal predecessors, (534), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:22,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 554 transitions. [2024-10-14 20:58:22,555 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 554 transitions. Word has length 36 [2024-10-14 20:58:22,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:22,556 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 554 transitions. [2024-10-14 20:58:22,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:22,556 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 554 transitions. [2024-10-14 20:58:22,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 20:58:22,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:22,556 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:22,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-14 20:58:22,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-14 20:58:22,757 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:22,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:22,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2094983904, now seen corresponding path program 1 times [2024-10-14 20:58:22,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:22,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737462242] [2024-10-14 20:58:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:22,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:58:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:22,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:22,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737462242] [2024-10-14 20:58:22,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737462242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:22,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:22,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:58:22,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638116658] [2024-10-14 20:58:22,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:22,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:58:22,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:22,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:58:22,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:58:22,792 INFO L87 Difference]: Start difference. First operand 429 states and 554 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:23,141 INFO L93 Difference]: Finished difference Result 444 states and 556 transitions. [2024-10-14 20:58:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:58:23,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-10-14 20:58:23,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:23,143 INFO L225 Difference]: With dead ends: 444 [2024-10-14 20:58:23,143 INFO L226 Difference]: Without dead ends: 443 [2024-10-14 20:58:23,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:58:23,143 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 32 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:23,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 192 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:58:23,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-14 20:58:23,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 430. [2024-10-14 20:58:23,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 381 states have (on average 1.4015748031496063) internal successors, (534), 417 states have internal predecessors, (534), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:23,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 554 transitions. [2024-10-14 20:58:23,162 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 554 transitions. Word has length 36 [2024-10-14 20:58:23,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:23,163 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 554 transitions. [2024-10-14 20:58:23,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:23,163 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 554 transitions. [2024-10-14 20:58:23,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:58:23,163 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:23,163 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:23,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 20:58:23,163 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:23,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:23,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1171173990, now seen corresponding path program 1 times [2024-10-14 20:58:23,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:23,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018273142] [2024-10-14 20:58:23,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:23,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:23,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930528241] [2024-10-14 20:58:23,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:23,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:23,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:23,179 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:23,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 20:58:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:23,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 20:58:23,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:23,803 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:23,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:25,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:25,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:25,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018273142] [2024-10-14 20:58:25,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:25,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930528241] [2024-10-14 20:58:25,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930528241] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:25,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:25,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-10-14 20:58:25,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269280302] [2024-10-14 20:58:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:25,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:58:25,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:25,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:58:25,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:58:25,831 INFO L87 Difference]: Start difference. First operand 430 states and 554 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:30,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:58:34,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:58:37,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:37,680 INFO L93 Difference]: Finished difference Result 442 states and 568 transitions. [2024-10-14 20:58:37,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:58:37,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2024-10-14 20:58:37,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:37,681 INFO L225 Difference]: With dead ends: 442 [2024-10-14 20:58:37,681 INFO L226 Difference]: Without dead ends: 441 [2024-10-14 20:58:37,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:58:37,682 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 19 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:37,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 179 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 313 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2024-10-14 20:58:37,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-10-14 20:58:37,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-10-14 20:58:37,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 392 states have (on average 1.3903061224489797) internal successors, (545), 428 states have internal predecessors, (545), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:37,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 565 transitions. [2024-10-14 20:58:37,701 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 565 transitions. Word has length 37 [2024-10-14 20:58:37,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:37,701 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 565 transitions. [2024-10-14 20:58:37,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:37,702 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 565 transitions. [2024-10-14 20:58:37,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 20:58:37,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:37,702 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:37,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:37,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-14 20:58:37,902 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:37,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:37,903 INFO L85 PathProgramCache]: Analyzing trace with hash 339393682, now seen corresponding path program 1 times [2024-10-14 20:58:37,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:37,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441497873] [2024-10-14 20:58:37,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:37,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:37,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151917209] [2024-10-14 20:58:37,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:37,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:37,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:37,917 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:37,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 20:58:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:37,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:58:37,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:38,139 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:38,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:58:38,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:38,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441497873] [2024-10-14 20:58:38,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:38,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151917209] [2024-10-14 20:58:38,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151917209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:38,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:38,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:58:38,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552497208] [2024-10-14 20:58:38,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:38,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:58:38,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:38,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:58:38,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:58:38,141 INFO L87 Difference]: Start difference. First operand 441 states and 565 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:38,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:38,515 INFO L93 Difference]: Finished difference Result 445 states and 567 transitions. [2024-10-14 20:58:38,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:58:38,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-10-14 20:58:38,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:38,516 INFO L225 Difference]: With dead ends: 445 [2024-10-14 20:58:38,516 INFO L226 Difference]: Without dead ends: 443 [2024-10-14 20:58:38,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:58:38,517 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 178 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:38,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 206 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:58:38,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-14 20:58:38,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2024-10-14 20:58:38,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 392 states have (on average 1.385204081632653) internal successors, (543), 428 states have internal predecessors, (543), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:38,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 563 transitions. [2024-10-14 20:58:38,537 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 563 transitions. Word has length 38 [2024-10-14 20:58:38,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:38,537 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 563 transitions. [2024-10-14 20:58:38,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 563 transitions. [2024-10-14 20:58:38,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 20:58:38,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:38,537 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:38,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-14 20:58:38,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:38,738 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:38,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:38,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1946655383, now seen corresponding path program 1 times [2024-10-14 20:58:38,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:38,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160432907] [2024-10-14 20:58:38,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:38,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:38,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949964539] [2024-10-14 20:58:38,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:38,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:38,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:38,751 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:38,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-14 20:58:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:38,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 20:58:38,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:39,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:42,172 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:42,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:42,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160432907] [2024-10-14 20:58:42,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:42,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949964539] [2024-10-14 20:58:42,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949964539] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:42,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:42,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-10-14 20:58:42,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909048234] [2024-10-14 20:58:42,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:42,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:58:42,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:42,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:58:42,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:58:42,174 INFO L87 Difference]: Start difference. First operand 441 states and 563 transitions. Second operand has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:47,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:47,401 INFO L93 Difference]: Finished difference Result 445 states and 569 transitions. [2024-10-14 20:58:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:58:47,402 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-10-14 20:58:47,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:47,403 INFO L225 Difference]: With dead ends: 445 [2024-10-14 20:58:47,403 INFO L226 Difference]: Without dead ends: 444 [2024-10-14 20:58:47,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:58:47,403 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:47,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 146 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-10-14 20:58:47,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-10-14 20:58:47,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 436. [2024-10-14 20:58:47,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 387 states have (on average 1.3901808785529717) internal successors, (538), 423 states have internal predecessors, (538), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:58:47,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 558 transitions. [2024-10-14 20:58:47,427 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 558 transitions. Word has length 38 [2024-10-14 20:58:47,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:47,427 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 558 transitions. [2024-10-14 20:58:47,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:47,427 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 558 transitions. [2024-10-14 20:58:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 20:58:47,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:47,428 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:47,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:47,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:47,628 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:47,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1931269615, now seen corresponding path program 1 times [2024-10-14 20:58:47,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:47,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571233460] [2024-10-14 20:58:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:47,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028109471] [2024-10-14 20:58:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:47,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:47,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:47,637 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:47,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-14 20:58:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:47,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 20:58:47,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:47,889 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:47,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:48,896 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:48,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:48,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571233460] [2024-10-14 20:58:48,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:48,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028109471] [2024-10-14 20:58:48,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028109471] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:58:48,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:58:48,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-14 20:58:48,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284262859] [2024-10-14 20:58:48,897 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:48,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:58:48,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:48,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:58:48,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:58:48,898 INFO L87 Difference]: Start difference. First operand 436 states and 558 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:58:52,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:52,381 INFO L93 Difference]: Finished difference Result 576 states and 741 transitions. [2024-10-14 20:58:52,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 20:58:52,381 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2024-10-14 20:58:52,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:52,382 INFO L225 Difference]: With dead ends: 576 [2024-10-14 20:58:52,382 INFO L226 Difference]: Without dead ends: 574 [2024-10-14 20:58:52,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2024-10-14 20:58:52,383 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 627 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:52,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 129 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-14 20:58:52,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-10-14 20:58:52,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 488. [2024-10-14 20:58:52,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 438 states have (on average 1.3744292237442923) internal successors, (602), 474 states have internal predecessors, (602), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:58:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 624 transitions. [2024-10-14 20:58:52,408 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 624 transitions. Word has length 39 [2024-10-14 20:58:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:52,409 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 624 transitions. [2024-10-14 20:58:52,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:58:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 624 transitions. [2024-10-14 20:58:52,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 20:58:52,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:52,409 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:52,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:52,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:52,610 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:52,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash 216774792, now seen corresponding path program 1 times [2024-10-14 20:58:52,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:52,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971078273] [2024-10-14 20:58:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:52,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:52,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1318710382] [2024-10-14 20:58:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:52,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:52,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:52,619 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:52,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-14 20:58:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:52,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 20:58:52,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:52,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:52,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:53,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:53,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971078273] [2024-10-14 20:58:53,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:53,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318710382] [2024-10-14 20:58:53,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318710382] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:53,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:53,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-14 20:58:53,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355074903] [2024-10-14 20:58:53,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:53,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:58:53,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:53,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:58:53,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:58:53,220 INFO L87 Difference]: Start difference. First operand 488 states and 624 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:54,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:54,223 INFO L93 Difference]: Finished difference Result 500 states and 638 transitions. [2024-10-14 20:58:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:58:54,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2024-10-14 20:58:54,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:54,225 INFO L225 Difference]: With dead ends: 500 [2024-10-14 20:58:54,225 INFO L226 Difference]: Without dead ends: 499 [2024-10-14 20:58:54,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:58:54,225 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 118 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:54,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 98 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 20:58:54,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-10-14 20:58:54,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2024-10-14 20:58:54,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 449 states have (on average 1.3630289532293987) internal successors, (612), 485 states have internal predecessors, (612), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:58:54,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 634 transitions. [2024-10-14 20:58:54,249 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 634 transitions. Word has length 39 [2024-10-14 20:58:54,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:54,249 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 634 transitions. [2024-10-14 20:58:54,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:58:54,250 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 634 transitions. [2024-10-14 20:58:54,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:58:54,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:54,250 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:54,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-14 20:58:54,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-10-14 20:58:54,450 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:54,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:54,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1482738928, now seen corresponding path program 1 times [2024-10-14 20:58:54,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:54,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603046421] [2024-10-14 20:58:54,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:54,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:54,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690346709] [2024-10-14 20:58:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:54,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:54,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:54,464 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:54,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-14 20:58:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:54,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 20:58:54,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:54,707 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:54,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:55,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:55,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603046421] [2024-10-14 20:58:55,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:55,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690346709] [2024-10-14 20:58:55,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690346709] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:58:55,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:58:55,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-10-14 20:58:55,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538248599] [2024-10-14 20:58:55,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:55,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 20:58:55,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 20:58:55,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:58:55,060 INFO L87 Difference]: Start difference. First operand 499 states and 634 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:58:58,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:58,890 INFO L93 Difference]: Finished difference Result 548 states and 700 transitions. [2024-10-14 20:58:58,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 20:58:58,891 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-10-14 20:58:58,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:58,892 INFO L225 Difference]: With dead ends: 548 [2024-10-14 20:58:58,892 INFO L226 Difference]: Without dead ends: 538 [2024-10-14 20:58:58,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=230, Invalid=472, Unknown=0, NotChecked=0, Total=702 [2024-10-14 20:58:58,893 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 556 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:58,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 180 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-14 20:58:58,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-10-14 20:58:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 519. [2024-10-14 20:58:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 468 states have (on average 1.3525641025641026) internal successors, (633), 504 states have internal predecessors, (633), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:58:58,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 657 transitions. [2024-10-14 20:58:58,922 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 657 transitions. Word has length 41 [2024-10-14 20:58:58,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:58,922 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 657 transitions. [2024-10-14 20:58:58,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:58:58,923 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 657 transitions. [2024-10-14 20:58:58,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 20:58:58,923 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:58,923 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:58,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-14 20:58:59,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-10-14 20:58:59,128 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:58:59,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:59,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1017030638, now seen corresponding path program 1 times [2024-10-14 20:58:59,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:59,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834201062] [2024-10-14 20:58:59,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:59,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:59,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2236415] [2024-10-14 20:58:59,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:59,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:59,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:59,137 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:59,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-14 20:58:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:59,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 20:58:59,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:58:59,451 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:59:00,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:00,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834201062] [2024-10-14 20:59:00,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:00,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2236415] [2024-10-14 20:59:00,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2236415] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:59:00,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:59:00,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-10-14 20:59:00,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108215559] [2024-10-14 20:59:00,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:59:00,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 20:59:00,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:00,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 20:59:00,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:59:00,540 INFO L87 Difference]: Start difference. First operand 519 states and 657 transitions. Second operand has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:59:07,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:07,465 INFO L93 Difference]: Finished difference Result 539 states and 683 transitions. [2024-10-14 20:59:07,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 20:59:07,466 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-10-14 20:59:07,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:07,467 INFO L225 Difference]: With dead ends: 539 [2024-10-14 20:59:07,467 INFO L226 Difference]: Without dead ends: 538 [2024-10-14 20:59:07,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=231, Invalid=471, Unknown=0, NotChecked=0, Total=702 [2024-10-14 20:59:07,468 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 745 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:07,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 142 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-10-14 20:59:07,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-10-14 20:59:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 521. [2024-10-14 20:59:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 470 states have (on average 1.351063829787234) internal successors, (635), 506 states have internal predecessors, (635), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:59:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 659 transitions. [2024-10-14 20:59:07,495 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 659 transitions. Word has length 43 [2024-10-14 20:59:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:07,495 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 659 transitions. [2024-10-14 20:59:07,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:59:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 659 transitions. [2024-10-14 20:59:07,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 20:59:07,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:07,496 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:07,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-10-14 20:59:07,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:07,701 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:59:07,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1463178645, now seen corresponding path program 1 times [2024-10-14 20:59:07,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:07,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701224894] [2024-10-14 20:59:07,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:07,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:07,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1411673153] [2024-10-14 20:59:07,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:07,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:07,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:07,712 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:59:07,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-14 20:59:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:07,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:59:07,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:07,830 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:59:07,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:07,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701224894] [2024-10-14 20:59:07,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:07,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411673153] [2024-10-14 20:59:07,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411673153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:07,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:07,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:07,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521106551] [2024-10-14 20:59:07,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:07,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:07,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:07,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:07,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:07,832 INFO L87 Difference]: Start difference. First operand 521 states and 659 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:59:08,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:08,635 INFO L93 Difference]: Finished difference Result 538 states and 666 transitions. [2024-10-14 20:59:08,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:08,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2024-10-14 20:59:08,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:08,637 INFO L225 Difference]: With dead ends: 538 [2024-10-14 20:59:08,637 INFO L226 Difference]: Without dead ends: 537 [2024-10-14 20:59:08,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:08,638 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 43 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:08,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 139 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 20:59:08,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-10-14 20:59:08,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 521. [2024-10-14 20:59:08,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 470 states have (on average 1.3446808510638297) internal successors, (632), 506 states have internal predecessors, (632), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:59:08,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 656 transitions. [2024-10-14 20:59:08,665 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 656 transitions. Word has length 44 [2024-10-14 20:59:08,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:08,666 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 656 transitions. [2024-10-14 20:59:08,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:59:08,666 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 656 transitions. [2024-10-14 20:59:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 20:59:08,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:08,667 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:08,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-10-14 20:59:08,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:08,870 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:59:08,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:08,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1886102324, now seen corresponding path program 1 times [2024-10-14 20:59:08,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:08,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689883527] [2024-10-14 20:59:08,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:08,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:08,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816940164] [2024-10-14 20:59:08,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:08,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:08,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:08,882 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:59:08,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-14 20:59:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 20:59:08,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:59:09,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:59:11,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:11,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689883527] [2024-10-14 20:59:11,072 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:11,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816940164] [2024-10-14 20:59:11,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816940164] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:59:11,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:59:11,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-14 20:59:11,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894118435] [2024-10-14 20:59:11,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:11,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:59:11,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:11,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:59:11,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:59:11,073 INFO L87 Difference]: Start difference. First operand 521 states and 656 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:59:15,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:15,190 INFO L93 Difference]: Finished difference Result 535 states and 674 transitions. [2024-10-14 20:59:15,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:59:15,191 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2024-10-14 20:59:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:15,192 INFO L225 Difference]: With dead ends: 535 [2024-10-14 20:59:15,192 INFO L226 Difference]: Without dead ends: 534 [2024-10-14 20:59:15,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:59:15,193 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 32 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:15,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 137 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-14 20:59:15,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-10-14 20:59:15,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 506. [2024-10-14 20:59:15,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 455 states have (on average 1.353846153846154) internal successors, (616), 491 states have internal predecessors, (616), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:59:15,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 640 transitions. [2024-10-14 20:59:15,220 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 640 transitions. Word has length 45 [2024-10-14 20:59:15,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:15,220 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 640 transitions. [2024-10-14 20:59:15,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:59:15,220 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 640 transitions. [2024-10-14 20:59:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 20:59:15,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:15,220 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:15,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-14 20:59:15,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-10-14 20:59:15,421 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:59:15,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:15,421 INFO L85 PathProgramCache]: Analyzing trace with hash -188842531, now seen corresponding path program 1 times [2024-10-14 20:59:15,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:15,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315487992] [2024-10-14 20:59:15,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:15,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:15,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:59:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:15,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 20:59:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:59:15,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:15,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315487992] [2024-10-14 20:59:15,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315487992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:15,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:15,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:59:15,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563584894] [2024-10-14 20:59:15,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:15,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:59:15,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:15,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:59:15,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:59:15,602 INFO L87 Difference]: Start difference. First operand 506 states and 640 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:59:16,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:16,120 INFO L93 Difference]: Finished difference Result 919 states and 1189 transitions. [2024-10-14 20:59:16,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:59:16,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-10-14 20:59:16,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:16,122 INFO L225 Difference]: With dead ends: 919 [2024-10-14 20:59:16,122 INFO L226 Difference]: Without dead ends: 667 [2024-10-14 20:59:16,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:59:16,130 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 286 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:16,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 184 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:59:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-10-14 20:59:16,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 637. [2024-10-14 20:59:16,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 582 states have (on average 1.3814432989690721) internal successors, (804), 618 states have internal predecessors, (804), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 20:59:16,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 836 transitions. [2024-10-14 20:59:16,167 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 836 transitions. Word has length 51 [2024-10-14 20:59:16,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:16,167 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 836 transitions. [2024-10-14 20:59:16,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:59:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 836 transitions. [2024-10-14 20:59:16,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 20:59:16,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:16,168 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:16,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-14 20:59:16,168 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:59:16,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:16,168 INFO L85 PathProgramCache]: Analyzing trace with hash -175019508, now seen corresponding path program 1 times [2024-10-14 20:59:16,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:16,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919198968] [2024-10-14 20:59:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:16,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 20:59:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:16,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 20:59:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:16,216 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:59:16,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:16,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919198968] [2024-10-14 20:59:16,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919198968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:16,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:16,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:59:16,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475055867] [2024-10-14 20:59:16,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:16,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:59:16,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:16,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:59:16,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:59:16,218 INFO L87 Difference]: Start difference. First operand 637 states and 836 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:59:16,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:16,485 INFO L93 Difference]: Finished difference Result 637 states and 836 transitions. [2024-10-14 20:59:16,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:59:16,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-10-14 20:59:16,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:16,487 INFO L225 Difference]: With dead ends: 637 [2024-10-14 20:59:16,487 INFO L226 Difference]: Without dead ends: 634 [2024-10-14 20:59:16,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:59:16,487 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 43 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:16,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 99 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:59:16,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-10-14 20:59:16,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2024-10-14 20:59:16,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 582 states have (on average 1.3711340206185567) internal successors, (798), 615 states have internal predecessors, (798), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 20:59:16,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 830 transitions. [2024-10-14 20:59:16,524 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 830 transitions. Word has length 51 [2024-10-14 20:59:16,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:16,524 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 830 transitions. [2024-10-14 20:59:16,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:59:16,524 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 830 transitions. [2024-10-14 20:59:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 20:59:16,525 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:16,525 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:16,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-14 20:59:16,525 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-10-14 20:59:16,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:16,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1144028388, now seen corresponding path program 1 times [2024-10-14 20:59:16,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:16,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27241161] [2024-10-14 20:59:16,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:16,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:16,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [355132954] [2024-10-14 20:59:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:16,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:16,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:16,545 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:59:16,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-14 20:59:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:16,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 20:59:16,586 INFO L278 TraceCheckSpWp]: Computing forward predicates...