./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/rec_counter1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/rec_counter1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 10:12:05,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 10:12:06,030 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-19 10:12:06,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 10:12:06,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 10:12:06,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 10:12:06,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 10:12:06,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 10:12:06,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 10:12:06,072 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 10:12:06,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 10:12:06,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 10:12:06,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 10:12:06,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 10:12:06,076 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 10:12:06,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 10:12:06,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 10:12:06,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 10:12:06,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 10:12:06,078 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 10:12:06,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 10:12:06,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 10:12:06,082 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 10:12:06,082 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 10:12:06,082 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 10:12:06,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 10:12:06,083 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 10:12:06,083 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 10:12:06,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 10:12:06,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 10:12:06,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 10:12:06,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:12:06,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 10:12:06,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 10:12:06,085 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 10:12:06,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 10:12:06,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 10:12:06,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 10:12:06,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 10:12:06,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 10:12:06,087 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 10:12:06,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2024-11-19 10:12:06,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 10:12:06,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 10:12:06,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 10:12:06,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 10:12:06,384 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 10:12:06,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/rec_counter1.c [2024-11-19 10:12:07,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 10:12:08,030 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 10:12:08,030 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter1.c [2024-11-19 10:12:08,042 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6201e73a9/8681a1860c1d40e095900fc9ad8d550d/FLAG4c0800303 [2024-11-19 10:12:08,060 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6201e73a9/8681a1860c1d40e095900fc9ad8d550d [2024-11-19 10:12:08,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 10:12:08,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 10:12:08,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 10:12:08,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 10:12:08,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 10:12:08,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a35969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08, skipping insertion in model container [2024-11-19 10:12:08,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 10:12:08,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:12:08,292 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 10:12:08,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:12:08,320 INFO L204 MainTranslator]: Completed translation [2024-11-19 10:12:08,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08 WrapperNode [2024-11-19 10:12:08,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 10:12:08,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 10:12:08,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 10:12:08,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 10:12:08,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,351 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2024-11-19 10:12:08,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 10:12:08,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 10:12:08,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 10:12:08,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 10:12:08,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,365 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,371 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-19 10:12:08,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 10:12:08,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 10:12:08,382 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 10:12:08,382 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 10:12:08,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (1/1) ... [2024-11-19 10:12:08,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:12:08,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:08,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 10:12:08,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 10:12:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-11-19 10:12:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-11-19 10:12:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 10:12:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 10:12:08,536 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 10:12:08,539 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 10:12:08,692 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-19 10:12:08,693 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 10:12:08,711 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 10:12:08,712 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 10:12:08,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:12:08 BoogieIcfgContainer [2024-11-19 10:12:08,713 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 10:12:08,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 10:12:08,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 10:12:08,720 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 10:12:08,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:12:08" (1/3) ... [2024-11-19 10:12:08,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4526527b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:12:08, skipping insertion in model container [2024-11-19 10:12:08,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:12:08" (2/3) ... [2024-11-19 10:12:08,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4526527b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:12:08, skipping insertion in model container [2024-11-19 10:12:08,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:12:08" (3/3) ... [2024-11-19 10:12:08,723 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_counter1.c [2024-11-19 10:12:08,741 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 10:12:08,742 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-19 10:12:08,814 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 10:12:08,821 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;@2644a6a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 10:12:08,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 10:12:08,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 17 states have (on average 1.588235294117647) internal successors, (27), 23 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:12:08,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 10:12:08,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:08,836 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:08,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:08,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:08,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1088965814, now seen corresponding path program 1 times [2024-11-19 10:12:08,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:08,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772351480] [2024-11-19 10:12:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:08,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:12:09,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:09,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772351480] [2024-11-19 10:12:09,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772351480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:12:09,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:12:09,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:12:09,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715902052] [2024-11-19 10:12:09,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:12:09,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:12:09,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:09,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:12:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:12:09,136 INFO L87 Difference]: Start difference. First operand has 27 states, 17 states have (on average 1.588235294117647) internal successors, (27), 23 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:12:09,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:09,226 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2024-11-19 10:12:09,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:12:09,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-19 10:12:09,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:09,237 INFO L225 Difference]: With dead ends: 63 [2024-11-19 10:12:09,237 INFO L226 Difference]: Without dead ends: 39 [2024-11-19 10:12:09,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:12:09,243 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 32 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:09,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 94 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:12:09,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-19 10:12:09,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2024-11-19 10:12:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 29 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:12:09,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-19 10:12:09,278 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2024-11-19 10:12:09,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:09,278 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-19 10:12:09,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:12:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-19 10:12:09,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 10:12:09,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:09,280 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:09,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 10:12:09,281 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:09,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash -601798096, now seen corresponding path program 1 times [2024-11-19 10:12:09,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:09,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271148287] [2024-11-19 10:12:09,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:09,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:09,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:12:09,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:09,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271148287] [2024-11-19 10:12:09,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271148287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:12:09,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:12:09,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:12:09,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100924467] [2024-11-19 10:12:09,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:12:09,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:12:09,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:09,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:12:09,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:12:09,362 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:12:09,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:09,416 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2024-11-19 10:12:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:12:09,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-19 10:12:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:09,420 INFO L225 Difference]: With dead ends: 36 [2024-11-19 10:12:09,420 INFO L226 Difference]: Without dead ends: 35 [2024-11-19 10:12:09,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:12:09,422 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 31 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:09,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 38 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:12:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-19 10:12:09,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2024-11-19 10:12:09,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:12:09,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2024-11-19 10:12:09,442 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 8 [2024-11-19 10:12:09,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:09,443 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-19 10:12:09,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:12:09,443 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-19 10:12:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 10:12:09,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:09,444 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:09,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 10:12:09,445 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:09,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash -114082075, now seen corresponding path program 1 times [2024-11-19 10:12:09,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:09,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615659494] [2024-11-19 10:12:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:09,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:12:09,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:09,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615659494] [2024-11-19 10:12:09,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615659494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:09,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712164417] [2024-11-19 10:12:09,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:09,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:09,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:09,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:09,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 10:12:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:09,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 10:12:09,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:09,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:12:09,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:12:09,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712164417] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:09,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:09,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-19 10:12:09,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804787703] [2024-11-19 10:12:09,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:09,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 10:12:09,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:09,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 10:12:09,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:12:09,809 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:12:09,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:09,912 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2024-11-19 10:12:09,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:12:09,913 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-19 10:12:09,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:09,914 INFO L225 Difference]: With dead ends: 39 [2024-11-19 10:12:09,914 INFO L226 Difference]: Without dead ends: 38 [2024-11-19 10:12:09,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-19 10:12:09,916 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 133 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:09,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 57 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:12:09,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-19 10:12:09,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2024-11-19 10:12:09,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:12:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-11-19 10:12:09,924 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 12 [2024-11-19 10:12:09,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:09,925 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-11-19 10:12:09,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 10:12:09,926 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-11-19 10:12:09,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-19 10:12:09,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:09,927 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:09,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 10:12:10,128 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 [2024-11-19 10:12:10,129 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:10,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:10,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1647452250, now seen corresponding path program 1 times [2024-11-19 10:12:10,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:10,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093500352] [2024-11-19 10:12:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:10,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 10:12:10,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:10,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093500352] [2024-11-19 10:12:10,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093500352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:12:10,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:12:10,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:12:10,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090523887] [2024-11-19 10:12:10,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:12:10,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:12:10,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:10,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:12:10,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:12:10,222 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:10,239 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2024-11-19 10:12:10,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:12:10,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-19 10:12:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:10,241 INFO L225 Difference]: With dead ends: 32 [2024-11-19 10:12:10,241 INFO L226 Difference]: Without dead ends: 31 [2024-11-19 10:12:10,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:12:10,242 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:10,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:12:10,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-19 10:12:10,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-19 10:12:10,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 26 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:12:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2024-11-19 10:12:10,252 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 16 [2024-11-19 10:12:10,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:10,252 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-11-19 10:12:10,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:10,253 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-11-19 10:12:10,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-19 10:12:10,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:10,254 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:10,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 10:12:10,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:10,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:10,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1647452195, now seen corresponding path program 1 times [2024-11-19 10:12:10,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:10,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326181113] [2024-11-19 10:12:10,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:10,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:10,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 10:12:10,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:10,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326181113] [2024-11-19 10:12:10,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326181113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:12:10,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:12:10,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:12:10,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837201427] [2024-11-19 10:12:10,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:12:10,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:12:10,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:10,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:12:10,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:12:10,324 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:10,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:10,335 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2024-11-19 10:12:10,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:12:10,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-19 10:12:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:10,337 INFO L225 Difference]: With dead ends: 31 [2024-11-19 10:12:10,338 INFO L226 Difference]: Without dead ends: 30 [2024-11-19 10:12:10,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:12:10,341 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:10,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:12:10,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-19 10:12:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-19 10:12:10,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:12:10,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-11-19 10:12:10,351 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 16 [2024-11-19 10:12:10,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:10,352 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-11-19 10:12:10,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2024-11-19 10:12:10,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-19 10:12:10,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:10,353 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:10,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 10:12:10,354 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:10,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:10,354 INFO L85 PathProgramCache]: Analyzing trace with hash 468587862, now seen corresponding path program 1 times [2024-11-19 10:12:10,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:10,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987285234] [2024-11-19 10:12:10,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:10,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 10:12:10,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:10,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987285234] [2024-11-19 10:12:10,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987285234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:12:10,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:12:10,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:12:10,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105354939] [2024-11-19 10:12:10,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:12:10,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:12:10,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:10,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:12:10,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:12:10,414 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:10,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:10,438 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2024-11-19 10:12:10,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:12:10,439 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-19 10:12:10,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:10,440 INFO L225 Difference]: With dead ends: 37 [2024-11-19 10:12:10,440 INFO L226 Difference]: Without dead ends: 34 [2024-11-19 10:12:10,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:12:10,443 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:10,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:12:10,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-19 10:12:10,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-19 10:12:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.25) internal successors, (35), 29 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:12:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2024-11-19 10:12:10,453 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 17 [2024-11-19 10:12:10,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:10,453 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2024-11-19 10:12:10,453 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:10,453 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2024-11-19 10:12:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-19 10:12:10,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:10,454 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:10,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 10:12:10,455 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:10,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:10,455 INFO L85 PathProgramCache]: Analyzing trace with hash 468589560, now seen corresponding path program 1 times [2024-11-19 10:12:10,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:10,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024428104] [2024-11-19 10:12:10,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:10,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:10,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 10:12:10,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:10,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024428104] [2024-11-19 10:12:10,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024428104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:12:10,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:12:10,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 10:12:10,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285214986] [2024-11-19 10:12:10,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:12:10,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:12:10,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:10,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:12:10,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:12:10,530 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:10,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:10,552 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2024-11-19 10:12:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:12:10,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-19 10:12:10,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:10,554 INFO L225 Difference]: With dead ends: 60 [2024-11-19 10:12:10,554 INFO L226 Difference]: Without dead ends: 38 [2024-11-19 10:12:10,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:12:10,555 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:10,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:12:10,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-19 10:12:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-19 10:12:10,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:12:10,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-11-19 10:12:10,563 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 17 [2024-11-19 10:12:10,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:10,563 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-11-19 10:12:10,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:10,564 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-11-19 10:12:10,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-19 10:12:10,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:10,565 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:10,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 10:12:10,565 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:10,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:10,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1297249887, now seen corresponding path program 1 times [2024-11-19 10:12:10,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:10,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649562723] [2024-11-19 10:12:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:10,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 10:12:10,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:10,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649562723] [2024-11-19 10:12:10,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649562723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:10,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655197244] [2024-11-19 10:12:10,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:10,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:10,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:10,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:10,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 10:12:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:10,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 10:12:10,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 10:12:10,832 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:12:10,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655197244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:12:10,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:12:10,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-19 10:12:10,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902749886] [2024-11-19 10:12:10,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:12:10,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:12:10,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:10,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:12:10,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 10:12:10,833 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:12:10,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:10,867 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2024-11-19 10:12:10,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 10:12:10,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-19 10:12:10,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:10,868 INFO L225 Difference]: With dead ends: 38 [2024-11-19 10:12:10,868 INFO L226 Difference]: Without dead ends: 37 [2024-11-19 10:12:10,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 10:12:10,869 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:10,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:12:10,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-19 10:12:10,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-19 10:12:10,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:12:10,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-19 10:12:10,882 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 28 [2024-11-19 10:12:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:10,885 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-19 10:12:10,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:12:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-19 10:12:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 10:12:10,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:10,886 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:10,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 10:12:11,087 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,SelfDestructingSolverStorable7 [2024-11-19 10:12:11,088 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:11,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:11,088 INFO L85 PathProgramCache]: Analyzing trace with hash 255701234, now seen corresponding path program 1 times [2024-11-19 10:12:11,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:11,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024914050] [2024-11-19 10:12:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:11,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:11,167 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 10:12:11,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:11,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024914050] [2024-11-19 10:12:11,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024914050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:11,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201245126] [2024-11-19 10:12:11,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:12:11,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:11,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:11,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:11,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 10:12:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:11,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 10:12:11,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:11,292 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 10:12:11,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:11,465 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 10:12:11,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201245126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:11,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:11,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2024-11-19 10:12:11,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125159475] [2024-11-19 10:12:11,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:11,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 10:12:11,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:11,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 10:12:11,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-19 10:12:11,468 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 10:12:11,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:11,753 INFO L93 Difference]: Finished difference Result 110 states and 137 transitions. [2024-11-19 10:12:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-19 10:12:11,755 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 31 [2024-11-19 10:12:11,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:11,757 INFO L225 Difference]: With dead ends: 110 [2024-11-19 10:12:11,757 INFO L226 Difference]: Without dead ends: 79 [2024-11-19 10:12:11,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2024-11-19 10:12:11,760 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:11,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 139 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:12:11,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-19 10:12:11,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2024-11-19 10:12:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 67 states have (on average 1.208955223880597) internal successors, (81), 67 states have internal predecessors, (81), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 10:12:11,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2024-11-19 10:12:11,777 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 31 [2024-11-19 10:12:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:11,778 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2024-11-19 10:12:11,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 10:12:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2024-11-19 10:12:11,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-19 10:12:11,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:11,780 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:11,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 10:12:11,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:11,985 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:11,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:11,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1292177225, now seen corresponding path program 2 times [2024-11-19 10:12:11,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:11,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504550775] [2024-11-19 10:12:11,985 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:12:11,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:12,022 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:12:12,023 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:12,391 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 122 proven. 23 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-19 10:12:12,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:12,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504550775] [2024-11-19 10:12:12,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504550775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:12,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916569042] [2024-11-19 10:12:12,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:12:12,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:12,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:12,393 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:12,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 10:12:12,458 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:12:12,458 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:12,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 10:12:12,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:12,567 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 110 proven. 35 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-19 10:12:12,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 110 proven. 35 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-19 10:12:13,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916569042] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:13,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:13,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 20 [2024-11-19 10:12:13,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472038270] [2024-11-19 10:12:13,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:13,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 10:12:13,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:13,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 10:12:13,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2024-11-19 10:12:13,316 INFO L87 Difference]: Start difference. First operand 76 states and 90 transitions. Second operand has 20 states, 20 states have (on average 2.55) internal successors, (51), 16 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 10:12:13,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:13,449 INFO L93 Difference]: Finished difference Result 143 states and 173 transitions. [2024-11-19 10:12:13,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 10:12:13,449 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 16 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 82 [2024-11-19 10:12:13,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:13,450 INFO L225 Difference]: With dead ends: 143 [2024-11-19 10:12:13,451 INFO L226 Difference]: Without dead ends: 85 [2024-11-19 10:12:13,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 146 SyntacticMatches, 16 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2024-11-19 10:12:13,452 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:13,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:12:13,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-19 10:12:13,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-19 10:12:13,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 76 states have (on average 1.0921052631578947) internal successors, (83), 76 states have internal predecessors, (83), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 10:12:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2024-11-19 10:12:13,466 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 82 [2024-11-19 10:12:13,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:13,466 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2024-11-19 10:12:13,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 16 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 10:12:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2024-11-19 10:12:13,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-19 10:12:13,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:13,472 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:13,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 10:12:13,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:13,673 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:13,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash -35732743, now seen corresponding path program 3 times [2024-11-19 10:12:13,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:13,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333423488] [2024-11-19 10:12:13,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:12:13,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:13,695 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-19 10:12:13,696 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:13,809 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-19 10:12:13,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:13,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333423488] [2024-11-19 10:12:13,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333423488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:13,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346043458] [2024-11-19 10:12:13,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:12:13,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:13,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:13,812 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:13,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 10:12:13,871 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-19 10:12:13,871 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:13,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 10:12:13,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:13,908 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-19 10:12:13,908 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-19 10:12:14,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346043458] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:14,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:14,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-19 10:12:14,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113616704] [2024-11-19 10:12:14,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:14,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 10:12:14,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:14,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 10:12:14,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-19 10:12:14,089 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand has 18 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:14,152 INFO L93 Difference]: Finished difference Result 175 states and 206 transitions. [2024-11-19 10:12:14,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 10:12:14,153 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2024-11-19 10:12:14,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:14,154 INFO L225 Difference]: With dead ends: 175 [2024-11-19 10:12:14,154 INFO L226 Difference]: Without dead ends: 170 [2024-11-19 10:12:14,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-19 10:12:14,156 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:14,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:12:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-19 10:12:14,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 109. [2024-11-19 10:12:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 100 states have (on average 1.11) internal successors, (111), 100 states have internal predecessors, (111), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 10:12:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2024-11-19 10:12:14,178 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 88 [2024-11-19 10:12:14,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:14,179 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2024-11-19 10:12:14,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 18 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:14,180 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2024-11-19 10:12:14,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 10:12:14,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:14,184 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:14,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 10:12:14,385 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,SelfDestructingSolverStorable10 [2024-11-19 10:12:14,386 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:14,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:14,386 INFO L85 PathProgramCache]: Analyzing trace with hash 150062937, now seen corresponding path program 4 times [2024-11-19 10:12:14,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:14,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620865108] [2024-11-19 10:12:14,387 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:12:14,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:14,425 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:12:14,425 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:15,164 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 197 proven. 143 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-19 10:12:15,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:15,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620865108] [2024-11-19 10:12:15,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620865108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:15,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587566389] [2024-11-19 10:12:15,165 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:12:15,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:15,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:15,167 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:15,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 10:12:15,234 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:12:15,235 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:15,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 10:12:15,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:15,470 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 271 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-19 10:12:15,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:16,541 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 271 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-19 10:12:16,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587566389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:16,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:16,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 16, 16] total 52 [2024-11-19 10:12:16,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324356459] [2024-11-19 10:12:16,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:16,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-19 10:12:16,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:16,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-19 10:12:16,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=2353, Unknown=0, NotChecked=0, Total=2652 [2024-11-19 10:12:16,546 INFO L87 Difference]: Start difference. First operand 109 states and 120 transitions. Second operand has 52 states, 52 states have (on average 2.480769230769231) internal successors, (129), 42 states have internal predecessors, (129), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 10:12:17,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:17,423 INFO L93 Difference]: Finished difference Result 498 states and 562 transitions. [2024-11-19 10:12:17,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-11-19 10:12:17,424 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.480769230769231) internal successors, (129), 42 states have internal predecessors, (129), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 110 [2024-11-19 10:12:17,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:17,426 INFO L225 Difference]: With dead ends: 498 [2024-11-19 10:12:17,427 INFO L226 Difference]: Without dead ends: 274 [2024-11-19 10:12:17,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3626 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1171, Invalid=8729, Unknown=0, NotChecked=0, Total=9900 [2024-11-19 10:12:17,434 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:17,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 244 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:12:17,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-19 10:12:17,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 202. [2024-11-19 10:12:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 187 states have (on average 1.0748663101604279) internal successors, (201), 187 states have internal predecessors, (201), 3 states have call successors, (3), 2 states have call predecessors, (3), 11 states have return successors, (12), 12 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 10:12:17,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 216 transitions. [2024-11-19 10:12:17,482 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 216 transitions. Word has length 110 [2024-11-19 10:12:17,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:17,482 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 216 transitions. [2024-11-19 10:12:17,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.480769230769231) internal successors, (129), 42 states have internal predecessors, (129), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-19 10:12:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 216 transitions. [2024-11-19 10:12:17,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-19 10:12:17,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:17,486 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 14, 13, 13, 13, 13, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:17,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 10:12:17,690 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 [2024-11-19 10:12:17,691 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:17,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:17,691 INFO L85 PathProgramCache]: Analyzing trace with hash -456102055, now seen corresponding path program 5 times [2024-11-19 10:12:17,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:17,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796008434] [2024-11-19 10:12:17,692 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:12:17,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:17,731 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-19 10:12:17,731 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:18,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2482 backedges. 1041 proven. 53 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2024-11-19 10:12:18,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:18,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796008434] [2024-11-19 10:12:18,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796008434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:18,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808907520] [2024-11-19 10:12:18,056 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:12:18,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:18,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:18,058 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:18,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 10:12:18,146 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-11-19 10:12:18,146 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:18,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 10:12:18,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2482 backedges. 1025 proven. 88 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2024-11-19 10:12:18,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2482 backedges. 1043 proven. 70 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2024-11-19 10:12:19,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808907520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:19,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:19,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 23 [2024-11-19 10:12:19,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13095539] [2024-11-19 10:12:19,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:19,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 10:12:19,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:19,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 10:12:19,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2024-11-19 10:12:19,216 INFO L87 Difference]: Start difference. First operand 202 states and 216 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 21 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:12:19,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:19,510 INFO L93 Difference]: Finished difference Result 347 states and 378 transitions. [2024-11-19 10:12:19,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 10:12:19,510 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 21 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 230 [2024-11-19 10:12:19,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:19,512 INFO L225 Difference]: With dead ends: 347 [2024-11-19 10:12:19,512 INFO L226 Difference]: Without dead ends: 217 [2024-11-19 10:12:19,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 441 SyntacticMatches, 13 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=1094, Unknown=0, NotChecked=0, Total=1332 [2024-11-19 10:12:19,513 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:19,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:12:19,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-19 10:12:19,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-11-19 10:12:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 202 states have (on average 1.0594059405940595) internal successors, (214), 202 states have internal predecessors, (214), 3 states have call successors, (3), 2 states have call predecessors, (3), 11 states have return successors, (12), 12 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 10:12:19,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 229 transitions. [2024-11-19 10:12:19,530 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 229 transitions. Word has length 230 [2024-11-19 10:12:19,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:19,530 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 229 transitions. [2024-11-19 10:12:19,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 21 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 10:12:19,530 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 229 transitions. [2024-11-19 10:12:19,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-19 10:12:19,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:19,533 INFO L215 NwaCegarLoop]: trace histogram [37, 37, 37, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:19,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 10:12:19,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:19,734 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:19,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:19,734 INFO L85 PathProgramCache]: Analyzing trace with hash -483095095, now seen corresponding path program 6 times [2024-11-19 10:12:19,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:19,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305824282] [2024-11-19 10:12:19,734 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 10:12:19,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:19,782 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-11-19 10:12:19,782 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:20,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3032 backedges. 1093 proven. 120 refuted. 0 times theorem prover too weak. 1819 trivial. 0 not checked. [2024-11-19 10:12:20,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:20,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305824282] [2024-11-19 10:12:20,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305824282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:20,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852577668] [2024-11-19 10:12:20,107 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 10:12:20,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:20,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:20,109 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:20,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 10:12:20,212 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-11-19 10:12:20,212 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:20,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 10:12:20,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3032 backedges. 1093 proven. 120 refuted. 0 times theorem prover too weak. 1819 trivial. 0 not checked. [2024-11-19 10:12:20,295 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3032 backedges. 1093 proven. 120 refuted. 0 times theorem prover too weak. 1819 trivial. 0 not checked. [2024-11-19 10:12:20,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852577668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:20,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:20,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2024-11-19 10:12:20,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513180442] [2024-11-19 10:12:20,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:20,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-19 10:12:20,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:20,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-19 10:12:20,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2024-11-19 10:12:20,801 INFO L87 Difference]: Start difference. First operand 217 states and 229 transitions. Second operand has 30 states, 29 states have (on average 2.3448275862068964) internal successors, (68), 28 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:12:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:21,222 INFO L93 Difference]: Finished difference Result 614 states and 695 transitions. [2024-11-19 10:12:21,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-19 10:12:21,224 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.3448275862068964) internal successors, (68), 28 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 238 [2024-11-19 10:12:21,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:21,227 INFO L225 Difference]: With dead ends: 614 [2024-11-19 10:12:21,227 INFO L226 Difference]: Without dead ends: 555 [2024-11-19 10:12:21,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=676, Invalid=2404, Unknown=0, NotChecked=0, Total=3080 [2024-11-19 10:12:21,229 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:21,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:12:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-19 10:12:21,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 247. [2024-11-19 10:12:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 232 states have (on average 1.0862068965517242) internal successors, (252), 232 states have internal predecessors, (252), 3 states have call successors, (3), 2 states have call predecessors, (3), 11 states have return successors, (12), 12 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 10:12:21,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 267 transitions. [2024-11-19 10:12:21,254 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 267 transitions. Word has length 238 [2024-11-19 10:12:21,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:21,255 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 267 transitions. [2024-11-19 10:12:21,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.3448275862068964) internal successors, (68), 28 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:12:21,255 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 267 transitions. [2024-11-19 10:12:21,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-19 10:12:21,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:21,258 INFO L215 NwaCegarLoop]: trace histogram [45, 45, 45, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:21,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 10:12:21,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-19 10:12:21,459 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:21,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:21,460 INFO L85 PathProgramCache]: Analyzing trace with hash 584096889, now seen corresponding path program 7 times [2024-11-19 10:12:21,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:21,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916337606] [2024-11-19 10:12:21,460 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 10:12:21,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4092 backedges. 2388 proven. 90 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2024-11-19 10:12:22,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:22,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916337606] [2024-11-19 10:12:22,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916337606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:22,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300442586] [2024-11-19 10:12:22,153 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 10:12:22,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:22,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:22,155 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:22,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 10:12:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:22,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 10:12:22,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4092 backedges. 1958 proven. 177 refuted. 0 times theorem prover too weak. 1957 trivial. 0 not checked. [2024-11-19 10:12:22,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4092 backedges. 1958 proven. 177 refuted. 0 times theorem prover too weak. 1957 trivial. 0 not checked. [2024-11-19 10:12:25,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300442586] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:25,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:25,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 28, 28] total 37 [2024-11-19 10:12:25,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737616100] [2024-11-19 10:12:25,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:25,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-19 10:12:25,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:25,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-19 10:12:25,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1180, Unknown=0, NotChecked=0, Total=1332 [2024-11-19 10:12:25,829 INFO L87 Difference]: Start difference. First operand 247 states and 267 transitions. Second operand has 37 states, 37 states have (on average 2.5135135135135136) internal successors, (93), 31 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-19 10:12:26,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:26,533 INFO L93 Difference]: Finished difference Result 413 states and 454 transitions. [2024-11-19 10:12:26,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-19 10:12:26,534 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.5135135135135136) internal successors, (93), 31 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) Word has length 262 [2024-11-19 10:12:26,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:26,535 INFO L225 Difference]: With dead ends: 413 [2024-11-19 10:12:26,535 INFO L226 Difference]: Without dead ends: 256 [2024-11-19 10:12:26,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 482 SyntacticMatches, 26 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1975 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=512, Invalid=3910, Unknown=0, NotChecked=0, Total=4422 [2024-11-19 10:12:26,537 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:26,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 421 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 10:12:26,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-19 10:12:26,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-11-19 10:12:26,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 241 states have (on average 1.070539419087137) internal successors, (258), 241 states have internal predecessors, (258), 3 states have call successors, (3), 2 states have call predecessors, (3), 11 states have return successors, (12), 12 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 10:12:26,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 273 transitions. [2024-11-19 10:12:26,563 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 273 transitions. Word has length 262 [2024-11-19 10:12:26,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:26,563 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 273 transitions. [2024-11-19 10:12:26,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.5135135135135136) internal successors, (93), 31 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-19 10:12:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 273 transitions. [2024-11-19 10:12:26,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-19 10:12:26,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:26,567 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:26,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 10:12:26,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 10:12:26,772 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:26,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:26,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1642195082, now seen corresponding path program 8 times [2024-11-19 10:12:26,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:26,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801245830] [2024-11-19 10:12:26,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:12:26,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:26,841 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:12:26,842 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4539 backedges. 2742 proven. 138 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2024-11-19 10:12:27,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801245830] [2024-11-19 10:12:27,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801245830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410911971] [2024-11-19 10:12:27,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:12:27,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:27,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:27,509 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:27,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 10:12:27,695 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:12:27,695 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:27,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 10:12:27,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:28,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4539 backedges. 2566 proven. 311 refuted. 0 times theorem prover too weak. 1662 trivial. 0 not checked. [2024-11-19 10:12:28,143 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4539 backedges. 2566 proven. 311 refuted. 0 times theorem prover too weak. 1662 trivial. 0 not checked. [2024-11-19 10:12:32,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410911971] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:32,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:32,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 33, 33] total 44 [2024-11-19 10:12:32,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317303975] [2024-11-19 10:12:32,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:32,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-19 10:12:32,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:32,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-19 10:12:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1691, Unknown=0, NotChecked=0, Total=1892 [2024-11-19 10:12:32,293 INFO L87 Difference]: Start difference. First operand 256 states and 273 transitions. Second operand has 44 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 37 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-19 10:12:33,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:33,237 INFO L93 Difference]: Finished difference Result 407 states and 441 transitions. [2024-11-19 10:12:33,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-19 10:12:33,237 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 37 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 271 [2024-11-19 10:12:33,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:33,239 INFO L225 Difference]: With dead ends: 407 [2024-11-19 10:12:33,239 INFO L226 Difference]: Without dead ends: 265 [2024-11-19 10:12:33,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 492 SyntacticMatches, 31 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3327 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=823, Invalid=6659, Unknown=0, NotChecked=0, Total=7482 [2024-11-19 10:12:33,242 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:33,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 439 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 10:12:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-19 10:12:33,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2024-11-19 10:12:33,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 250 states have (on average 1.06) internal successors, (265), 250 states have internal predecessors, (265), 3 states have call successors, (3), 2 states have call predecessors, (3), 11 states have return successors, (12), 12 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 10:12:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 280 transitions. [2024-11-19 10:12:33,266 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 280 transitions. Word has length 271 [2024-11-19 10:12:33,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:33,266 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 280 transitions. [2024-11-19 10:12:33,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 37 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-19 10:12:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 280 transitions. [2024-11-19 10:12:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-19 10:12:33,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:33,268 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:33,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 10:12:33,469 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,SelfDestructingSolverStorable15 [2024-11-19 10:12:33,469 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:33,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:33,469 INFO L85 PathProgramCache]: Analyzing trace with hash -370070871, now seen corresponding path program 9 times [2024-11-19 10:12:33,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:33,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136216464] [2024-11-19 10:12:33,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:12:33,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:33,512 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-19 10:12:33,512 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:34,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5013 backedges. 2343 proven. 678 refuted. 0 times theorem prover too weak. 1992 trivial. 0 not checked. [2024-11-19 10:12:34,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:34,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136216464] [2024-11-19 10:12:34,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136216464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:34,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828952088] [2024-11-19 10:12:34,075 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:12:34,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:34,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:34,077 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:12:34,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 10:12:34,338 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-19 10:12:34,338 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:34,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-19 10:12:34,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5013 backedges. 2343 proven. 678 refuted. 0 times theorem prover too weak. 1992 trivial. 0 not checked. [2024-11-19 10:12:34,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:35,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5013 backedges. 2343 proven. 678 refuted. 0 times theorem prover too weak. 1992 trivial. 0 not checked. [2024-11-19 10:12:35,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828952088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:35,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:35,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 43 [2024-11-19 10:12:35,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777832175] [2024-11-19 10:12:35,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:35,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-19 10:12:35,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:35,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-19 10:12:35,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=1545, Unknown=0, NotChecked=0, Total=1892 [2024-11-19 10:12:35,568 INFO L87 Difference]: Start difference. First operand 265 states and 280 transitions. Second operand has 44 states, 43 states have (on average 2.2325581395348837) internal successors, (96), 40 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 10:12:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:37,040 INFO L93 Difference]: Finished difference Result 947 states and 1070 transitions. [2024-11-19 10:12:37,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2024-11-19 10:12:37,041 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 2.2325581395348837) internal successors, (96), 40 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 280 [2024-11-19 10:12:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:37,045 INFO L225 Difference]: With dead ends: 947 [2024-11-19 10:12:37,045 INFO L226 Difference]: Without dead ends: 827 [2024-11-19 10:12:37,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4731 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2981, Invalid=11299, Unknown=0, NotChecked=0, Total=14280 [2024-11-19 10:12:37,051 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:37,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:12:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-11-19 10:12:37,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 328. [2024-11-19 10:12:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 313 states have (on average 1.1022364217252396) internal successors, (345), 313 states have internal predecessors, (345), 3 states have call successors, (3), 2 states have call predecessors, (3), 11 states have return successors, (12), 12 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 10:12:37,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 360 transitions. [2024-11-19 10:12:37,095 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 360 transitions. Word has length 280 [2024-11-19 10:12:37,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:37,096 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 360 transitions. [2024-11-19 10:12:37,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 2.2325581395348837) internal successors, (96), 40 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-19 10:12:37,096 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 360 transitions. [2024-11-19 10:12:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-19 10:12:37,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:37,099 INFO L215 NwaCegarLoop]: trace histogram [68, 68, 68, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:37,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 10:12:37,303 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,SelfDestructingSolverStorable16 [2024-11-19 10:12:37,304 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:37,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:37,304 INFO L85 PathProgramCache]: Analyzing trace with hash -135011146, now seen corresponding path program 10 times [2024-11-19 10:12:37,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:37,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301872423] [2024-11-19 10:12:37,304 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:12:37,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:37,444 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:12:37,444 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 8209 backedges. 2360 proven. 247 refuted. 0 times theorem prover too weak. 5602 trivial. 0 not checked. [2024-11-19 10:12:38,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:38,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301872423] [2024-11-19 10:12:38,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301872423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:38,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10229525] [2024-11-19 10:12:38,381 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:12:38,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:38,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:38,384 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) [2024-11-19 10:12:38,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 10:12:38,623 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:12:38,623 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:38,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 10:12:38,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 8209 backedges. 2360 proven. 247 refuted. 0 times theorem prover too weak. 5602 trivial. 0 not checked. [2024-11-19 10:12:38,719 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 8209 backedges. 2360 proven. 247 refuted. 0 times theorem prover too weak. 5602 trivial. 0 not checked. [2024-11-19 10:12:39,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10229525] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:39,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:39,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 59 [2024-11-19 10:12:39,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440491396] [2024-11-19 10:12:39,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:39,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-19 10:12:39,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:39,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-19 10:12:39,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=929, Invalid=2611, Unknown=0, NotChecked=0, Total=3540 [2024-11-19 10:12:39,625 INFO L87 Difference]: Start difference. First operand 328 states and 360 transitions. Second operand has 60 states, 59 states have (on average 1.7966101694915255) internal successors, (106), 60 states have internal predecessors, (106), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:39,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:39,896 INFO L93 Difference]: Finished difference Result 711 states and 862 transitions. [2024-11-19 10:12:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-19 10:12:39,897 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 1.7966101694915255) internal successors, (106), 60 states have internal predecessors, (106), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2024-11-19 10:12:39,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:39,901 INFO L225 Difference]: With dead ends: 711 [2024-11-19 10:12:39,901 INFO L226 Difference]: Without dead ends: 706 [2024-11-19 10:12:39,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1066 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=929, Invalid=2611, Unknown=0, NotChecked=0, Total=3540 [2024-11-19 10:12:39,904 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:39,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:12:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-19 10:12:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 412. [2024-11-19 10:12:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 397 states have (on average 1.1158690176322419) internal successors, (443), 397 states have internal predecessors, (443), 3 states have call successors, (3), 2 states have call predecessors, (3), 11 states have return successors, (12), 12 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 10:12:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 458 transitions. [2024-11-19 10:12:39,963 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 458 transitions. Word has length 331 [2024-11-19 10:12:39,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:39,963 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 458 transitions. [2024-11-19 10:12:39,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 1.7966101694915255) internal successors, (106), 60 states have internal predecessors, (106), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 10:12:39,963 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 458 transitions. [2024-11-19 10:12:39,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-19 10:12:39,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:39,966 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:39,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 10:12:40,166 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,SelfDestructingSolverStorable17 [2024-11-19 10:12:40,166 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:40,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:40,167 INFO L85 PathProgramCache]: Analyzing trace with hash -2045551466, now seen corresponding path program 11 times [2024-11-19 10:12:40,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:40,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807864562] [2024-11-19 10:12:40,167 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:12:40,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:40,229 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-19 10:12:40,229 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 11492 backedges. 4871 proven. 444 refuted. 0 times theorem prover too weak. 6177 trivial. 0 not checked. [2024-11-19 10:12:40,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:40,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807864562] [2024-11-19 10:12:40,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807864562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:40,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039378207] [2024-11-19 10:12:40,969 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:12:40,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:40,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:40,971 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) [2024-11-19 10:12:40,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 10:12:41,224 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-19 10:12:41,224 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:41,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 10:12:41,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:41,423 INFO L134 CoverageAnalysis]: Checked inductivity of 11492 backedges. 4644 proven. 696 refuted. 0 times theorem prover too weak. 6152 trivial. 0 not checked. [2024-11-19 10:12:41,423 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:44,353 INFO L134 CoverageAnalysis]: Checked inductivity of 11492 backedges. 4644 proven. 696 refuted. 0 times theorem prover too weak. 6152 trivial. 0 not checked. [2024-11-19 10:12:44,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039378207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:44,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:44,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 33, 33] total 40 [2024-11-19 10:12:44,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528852330] [2024-11-19 10:12:44,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:44,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-19 10:12:44,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:44,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-19 10:12:44,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1400, Unknown=0, NotChecked=0, Total=1560 [2024-11-19 10:12:44,357 INFO L87 Difference]: Start difference. First operand 412 states and 458 transitions. Second operand has 40 states, 40 states have (on average 2.425) internal successors, (97), 35 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-19 10:12:45,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:45,011 INFO L93 Difference]: Finished difference Result 758 states and 850 transitions. [2024-11-19 10:12:45,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-19 10:12:45,011 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.425) internal successors, (97), 35 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 373 [2024-11-19 10:12:45,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:45,014 INFO L225 Difference]: With dead ends: 758 [2024-11-19 10:12:45,014 INFO L226 Difference]: Without dead ends: 436 [2024-11-19 10:12:45,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 710 SyntacticMatches, 27 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2352 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=735, Invalid=5427, Unknown=0, NotChecked=0, Total=6162 [2024-11-19 10:12:45,018 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:45,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 252 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:12:45,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-19 10:12:45,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2024-11-19 10:12:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 420 states have (on average 1.1071428571428572) internal successors, (465), 420 states have internal predecessors, (465), 3 states have call successors, (3), 2 states have call predecessors, (3), 12 states have return successors, (13), 13 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 10:12:45,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 481 transitions. [2024-11-19 10:12:45,102 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 481 transitions. Word has length 373 [2024-11-19 10:12:45,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:45,103 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 481 transitions. [2024-11-19 10:12:45,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.425) internal successors, (97), 35 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-19 10:12:45,103 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 481 transitions. [2024-11-19 10:12:45,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-19 10:12:45,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:45,106 INFO L215 NwaCegarLoop]: trace histogram [88, 88, 88, 15, 14, 14, 14, 14, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:45,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-19 10:12:45,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:45,307 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:45,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:45,307 INFO L85 PathProgramCache]: Analyzing trace with hash -997707635, now seen corresponding path program 12 times [2024-11-19 10:12:45,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:45,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764891575] [2024-11-19 10:12:45,307 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 10:12:45,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:45,377 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2024-11-19 10:12:45,377 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 13419 backedges. 5809 proven. 4003 refuted. 0 times theorem prover too weak. 3607 trivial. 0 not checked. [2024-11-19 10:12:46,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:46,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764891575] [2024-11-19 10:12:46,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764891575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:46,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708188381] [2024-11-19 10:12:46,057 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 10:12:46,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:46,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:46,059 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) [2024-11-19 10:12:46,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 10:12:46,373 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2024-11-19 10:12:46,373 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:12:46,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-19 10:12:46,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 13419 backedges. 5809 proven. 4003 refuted. 0 times theorem prover too weak. 3607 trivial. 0 not checked. [2024-11-19 10:12:46,549 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:12:48,384 INFO L134 CoverageAnalysis]: Checked inductivity of 13419 backedges. 5809 proven. 4003 refuted. 0 times theorem prover too weak. 3607 trivial. 0 not checked. [2024-11-19 10:12:48,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708188381] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:12:48,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:12:48,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 51 [2024-11-19 10:12:48,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104143553] [2024-11-19 10:12:48,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:12:48,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-19 10:12:48,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:12:48,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-19 10:12:48,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2024-11-19 10:12:48,387 INFO L87 Difference]: Start difference. First operand 436 states and 481 transitions. Second operand has 52 states, 51 states have (on average 2.235294117647059) internal successors, (114), 46 states have internal predecessors, (114), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-19 10:12:51,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:12:51,252 INFO L93 Difference]: Finished difference Result 1465 states and 1668 transitions. [2024-11-19 10:12:51,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2024-11-19 10:12:51,253 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.235294117647059) internal successors, (114), 46 states have internal predecessors, (114), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 412 [2024-11-19 10:12:51,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:12:51,257 INFO L225 Difference]: With dead ends: 1465 [2024-11-19 10:12:51,258 INFO L226 Difference]: Without dead ends: 1124 [2024-11-19 10:12:51,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 980 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12686 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=6997, Invalid=26675, Unknown=0, NotChecked=0, Total=33672 [2024-11-19 10:12:51,266 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:12:51,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:12:51,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-11-19 10:12:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 535. [2024-11-19 10:12:51,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 517 states have (on average 1.1237911025145069) internal successors, (581), 517 states have internal predecessors, (581), 3 states have call successors, (3), 2 states have call predecessors, (3), 14 states have return successors, (15), 15 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 10:12:51,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 599 transitions. [2024-11-19 10:12:51,359 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 599 transitions. Word has length 412 [2024-11-19 10:12:51,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:12:51,360 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 599 transitions. [2024-11-19 10:12:51,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.235294117647059) internal successors, (114), 46 states have internal predecessors, (114), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-19 10:12:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 599 transitions. [2024-11-19 10:12:51,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-11-19 10:12:51,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:12:51,364 INFO L215 NwaCegarLoop]: trace histogram [117, 117, 117, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1] [2024-11-19 10:12:51,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-19 10:12:51,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:51,565 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:12:51,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:12:51,565 INFO L85 PathProgramCache]: Analyzing trace with hash -613992878, now seen corresponding path program 13 times [2024-11-19 10:12:51,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:12:51,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416614125] [2024-11-19 10:12:51,565 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 10:12:51,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:12:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:53,266 INFO L134 CoverageAnalysis]: Checked inductivity of 23025 backedges. 8697 proven. 1337 refuted. 0 times theorem prover too weak. 12991 trivial. 0 not checked. [2024-11-19 10:12:53,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:12:53,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416614125] [2024-11-19 10:12:53,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416614125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:12:53,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834019013] [2024-11-19 10:12:53,266 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 10:12:53,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:12:53,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:12:53,270 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) [2024-11-19 10:12:53,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 10:12:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:12:53,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-19 10:12:53,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:12:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 23025 backedges. 8716 proven. 1316 refuted. 0 times theorem prover too weak. 12993 trivial. 0 not checked. [2024-11-19 10:12:53,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:13:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 23025 backedges. 8716 proven. 1316 refuted. 0 times theorem prover too weak. 12993 trivial. 0 not checked. [2024-11-19 10:13:00,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834019013] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:13:00,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:13:00,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40, 40] total 43 [2024-11-19 10:13:00,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155646807] [2024-11-19 10:13:00,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:13:00,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-19 10:13:00,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:13:00,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-19 10:13:00,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1583, Unknown=0, NotChecked=0, Total=1806 [2024-11-19 10:13:00,855 INFO L87 Difference]: Start difference. First operand 535 states and 599 transitions. Second operand has 43 states, 43 states have (on average 2.3255813953488373) internal successors, (100), 35 states have internal predecessors, (100), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-19 10:13:01,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:13:01,788 INFO L93 Difference]: Finished difference Result 980 states and 1109 transitions. [2024-11-19 10:13:01,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-11-19 10:13:01,789 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.3255813953488373) internal successors, (100), 35 states have internal predecessors, (100), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 511 [2024-11-19 10:13:01,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:13:01,792 INFO L225 Difference]: With dead ends: 980 [2024-11-19 10:13:01,792 INFO L226 Difference]: Without dead ends: 562 [2024-11-19 10:13:01,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1109 GetRequests, 983 SyntacticMatches, 37 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3033 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1132, Invalid=7058, Unknown=0, NotChecked=0, Total=8190 [2024-11-19 10:13:01,796 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:13:01,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 207 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:13:01,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-19 10:13:01,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2024-11-19 10:13:01,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 543 states have (on average 1.1197053406998159) internal successors, (608), 543 states have internal predecessors, (608), 3 states have call successors, (3), 2 states have call predecessors, (3), 15 states have return successors, (16), 16 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 10:13:01,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 627 transitions. [2024-11-19 10:13:01,874 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 627 transitions. Word has length 511 [2024-11-19 10:13:01,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:13:01,875 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 627 transitions. [2024-11-19 10:13:01,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.3255813953488373) internal successors, (100), 35 states have internal predecessors, (100), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-19 10:13:01,875 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 627 transitions. [2024-11-19 10:13:01,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2024-11-19 10:13:01,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:13:01,879 INFO L215 NwaCegarLoop]: trace histogram [123, 123, 123, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1] [2024-11-19 10:13:01,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-19 10:13:02,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:13:02,084 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:13:02,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:13:02,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1088588775, now seen corresponding path program 14 times [2024-11-19 10:13:02,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:13:02,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419877645] [2024-11-19 10:13:02,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:13:02,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:13:02,221 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:13:02,221 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:13:03,510 INFO L134 CoverageAnalysis]: Checked inductivity of 25539 backedges. 9937 proven. 429 refuted. 0 times theorem prover too weak. 15173 trivial. 0 not checked. [2024-11-19 10:13:03,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:13:03,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419877645] [2024-11-19 10:13:03,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419877645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:13:03,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597550567] [2024-11-19 10:13:03,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:13:03,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:13:03,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:13:03,512 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) [2024-11-19 10:13:03,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 10:13:03,956 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:13:03,956 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:13:03,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-19 10:13:03,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:13:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 25539 backedges. 9867 proven. 499 refuted. 0 times theorem prover too weak. 15173 trivial. 0 not checked. [2024-11-19 10:13:04,094 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:13:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 25539 backedges. 9867 proven. 499 refuted. 0 times theorem prover too weak. 15173 trivial. 0 not checked. [2024-11-19 10:13:11,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597550567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:13:11,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:13:11,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 40 [2024-11-19 10:13:11,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333615588] [2024-11-19 10:13:11,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:13:11,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-19 10:13:11,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:13:11,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-19 10:13:11,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=1343, Unknown=0, NotChecked=0, Total=1560 [2024-11-19 10:13:11,847 INFO L87 Difference]: Start difference. First operand 562 states and 627 transitions. Second operand has 40 states, 40 states have (on average 2.375) internal successors, (95), 32 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-19 10:13:12,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:13:12,479 INFO L93 Difference]: Finished difference Result 980 states and 1108 transitions. [2024-11-19 10:13:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-19 10:13:12,482 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.375) internal successors, (95), 32 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 540 [2024-11-19 10:13:12,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:13:12,485 INFO L225 Difference]: With dead ends: 980 [2024-11-19 10:13:12,485 INFO L226 Difference]: Without dead ends: 562 [2024-11-19 10:13:12,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 1042 SyntacticMatches, 36 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2533 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=878, Invalid=4822, Unknown=0, NotChecked=0, Total=5700 [2024-11-19 10:13:12,490 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:13:12,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 482 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:13:12,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-19 10:13:12,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2024-11-19 10:13:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 543 states have (on average 1.1049723756906078) internal successors, (600), 543 states have internal predecessors, (600), 3 states have call successors, (3), 2 states have call predecessors, (3), 15 states have return successors, (16), 16 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 10:13:12,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 619 transitions. [2024-11-19 10:13:12,581 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 619 transitions. Word has length 540 [2024-11-19 10:13:12,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:13:12,581 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 619 transitions. [2024-11-19 10:13:12,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.375) internal successors, (95), 32 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-19 10:13:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 619 transitions. [2024-11-19 10:13:12,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-19 10:13:12,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:13:12,587 INFO L215 NwaCegarLoop]: trace histogram [124, 124, 124, 18, 17, 17, 17, 17, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1] [2024-11-19 10:13:12,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-19 10:13:12,787 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,SelfDestructingSolverStorable21 [2024-11-19 10:13:12,788 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:13:12,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:13:12,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1951848454, now seen corresponding path program 15 times [2024-11-19 10:13:12,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:13:12,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614261575] [2024-11-19 10:13:12,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:13:12,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:13:12,842 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-19 10:13:12,842 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:13:13,591 INFO L134 CoverageAnalysis]: Checked inductivity of 26082 backedges. 11862 proven. 7858 refuted. 0 times theorem prover too weak. 6362 trivial. 0 not checked. [2024-11-19 10:13:13,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:13:13,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614261575] [2024-11-19 10:13:13,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614261575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:13:13,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300730719] [2024-11-19 10:13:13,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:13:13,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:13:13,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:13:13,594 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) [2024-11-19 10:13:13,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 10:13:14,116 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-19 10:13:14,117 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:13:14,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 10:13:14,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:13:14,330 INFO L134 CoverageAnalysis]: Checked inductivity of 26082 backedges. 11862 proven. 7858 refuted. 0 times theorem prover too weak. 6362 trivial. 0 not checked. [2024-11-19 10:13:14,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:13:17,652 INFO L134 CoverageAnalysis]: Checked inductivity of 26082 backedges. 11862 proven. 7858 refuted. 0 times theorem prover too weak. 6362 trivial. 0 not checked. [2024-11-19 10:13:17,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300730719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:13:17,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:13:17,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 61 [2024-11-19 10:13:17,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089710413] [2024-11-19 10:13:17,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:13:17,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-19 10:13:17,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:13:17,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-19 10:13:17,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=597, Invalid=3185, Unknown=0, NotChecked=0, Total=3782 [2024-11-19 10:13:17,655 INFO L87 Difference]: Start difference. First operand 562 states and 619 transitions. Second operand has 62 states, 61 states have (on average 2.2295081967213113) internal successors, (136), 54 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-19 10:13:22,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:13:22,884 INFO L93 Difference]: Finished difference Result 2199 states and 2507 transitions. [2024-11-19 10:13:22,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2024-11-19 10:13:22,884 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 2.2295081967213113) internal successors, (136), 54 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 553 [2024-11-19 10:13:22,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:13:22,892 INFO L225 Difference]: With dead ends: 2199 [2024-11-19 10:13:22,893 INFO L226 Difference]: Without dead ends: 1773 [2024-11-19 10:13:22,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1075 SyntacticMatches, 0 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28151 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=14041, Invalid=54341, Unknown=0, NotChecked=0, Total=68382 [2024-11-19 10:13:22,902 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:13:22,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:13:22,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2024-11-19 10:13:23,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 679. [2024-11-19 10:13:23,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 658 states have (on average 1.121580547112462) internal successors, (738), 658 states have internal predecessors, (738), 3 states have call successors, (3), 2 states have call predecessors, (3), 17 states have return successors, (18), 18 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 10:13:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 759 transitions. [2024-11-19 10:13:23,030 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 759 transitions. Word has length 553 [2024-11-19 10:13:23,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:13:23,031 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 759 transitions. [2024-11-19 10:13:23,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 2.2295081967213113) internal successors, (136), 54 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-19 10:13:23,032 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 759 transitions. [2024-11-19 10:13:23,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2024-11-19 10:13:23,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:13:23,037 INFO L215 NwaCegarLoop]: trace histogram [159, 159, 159, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 1, 1, 1, 1, 1, 1] [2024-11-19 10:13:23,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-19 10:13:23,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:13:23,238 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-19 10:13:23,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:13:23,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1424953639, now seen corresponding path program 16 times [2024-11-19 10:13:23,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:13:23,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650988059] [2024-11-19 10:13:23,238 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:13:23,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:13:23,731 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:13:23,731 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:13:25,333 INFO L134 CoverageAnalysis]: Checked inductivity of 41916 backedges. 16347 proven. 254 refuted. 0 times theorem prover too weak. 25315 trivial. 0 not checked. [2024-11-19 10:13:25,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:13:25,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650988059] [2024-11-19 10:13:25,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650988059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:13:25,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698410970] [2024-11-19 10:13:25,334 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:13:25,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:13:25,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:13:25,335 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) [2024-11-19 10:13:25,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-19 10:13:25,914 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:13:25,914 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:13:25,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-19 10:13:25,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:13:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 41916 backedges. 15203 proven. 2126 refuted. 0 times theorem prover too weak. 24587 trivial. 0 not checked. [2024-11-19 10:13:26,452 INFO L311 TraceCheckSpWp]: Computing backward predicates...