./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.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 d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:43:08,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:43:08,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-24 19:43:08,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:43:08,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:43:08,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:43:08,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:43:08,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:43:08,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:43:08,282 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:43:08,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:43:08,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:43:08,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:43:08,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:43:08,284 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:43:08,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:43:08,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 19:43:08,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:43:08,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:43:08,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 19:43:08,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:43:08,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 19:43:08,289 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:43:08,289 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 19:43:08,289 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:43:08,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 19:43:08,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:43:08,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:43:08,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:43:08,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:43:08,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:43:08,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:43:08,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:43:08,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:43:08,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 19:43:08,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:43:08,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:43:08,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:43:08,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:43:08,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:43:08,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:43:08,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 [2024-10-24 19:43:08,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:43:08,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:43:08,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:43:08,563 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:43:08,563 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:43:08,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.c [2024-10-24 19:43:09,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:43:10,153 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:43:10,154 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.c [2024-10-24 19:43:10,160 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4a37d77/f36b631af7c44ebb8eec4e084c7e9ed8/FLAGccf7028c7 [2024-10-24 19:43:10,549 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4a37d77/f36b631af7c44ebb8eec4e084c7e9ed8 [2024-10-24 19:43:10,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:43:10,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:43:10,554 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:43:10,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:43:10,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:43:10,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c0ac7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10, skipping insertion in model container [2024-10-24 19:43:10,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:43:10,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:43:10,748 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:43:10,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:43:10,770 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:43:10,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10 WrapperNode [2024-10-24 19:43:10,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:43:10,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:43:10,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:43:10,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:43:10,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,781 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,793 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2024-10-24 19:43:10,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:43:10,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:43:10,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:43:10,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:43:10,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,803 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,807 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-24 19:43:10,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,813 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:43:10,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:43:10,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:43:10,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:43:10,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (1/1) ... [2024-10-24 19:43:10,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:43:10,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:10,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 19:43:10,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 19:43:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-10-24 19:43:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-10-24 19:43:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:43:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:43:10,954 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:43:10,957 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:43:11,097 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-24 19:43:11,098 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:43:11,120 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:43:11,121 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 19:43:11,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:43:11 BoogieIcfgContainer [2024-10-24 19:43:11,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:43:11,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:43:11,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:43:11,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:43:11,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:43:10" (1/3) ... [2024-10-24 19:43:11,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e5b6e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:43:11, skipping insertion in model container [2024-10-24 19:43:11,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:43:10" (2/3) ... [2024-10-24 19:43:11,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e5b6e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:43:11, skipping insertion in model container [2024-10-24 19:43:11,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:43:11" (3/3) ... [2024-10-24 19:43:11,131 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_counter3.c [2024-10-24 19:43:11,150 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:43:11,151 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-24 19:43:11,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:43:11,223 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;@7f97f252, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:43:11,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:43:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.75) internal successors, (28), 22 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 19:43:11,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 19:43:11,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:11,237 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 19:43:11,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:11,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:11,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1651969229, now seen corresponding path program 1 times [2024-10-24 19:43:11,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:11,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214299562] [2024-10-24 19:43:11,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:11,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:43:11,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:11,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214299562] [2024-10-24 19:43:11,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214299562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:43:11,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:43:11,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:43:11,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249911865] [2024-10-24 19:43:11,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:43:11,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:43:11,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:11,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:43:11,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:43:11,500 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.75) internal successors, (28), 22 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:43:11,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:11,608 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2024-10-24 19:43:11,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:43:11,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-24 19:43:11,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:11,626 INFO L225 Difference]: With dead ends: 62 [2024-10-24 19:43:11,627 INFO L226 Difference]: Without dead ends: 38 [2024-10-24 19:43:11,630 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 [2024-10-24 19:43:11,636 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 34 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:11,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 83 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 19:43:11,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-10-24 19:43:11,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2024-10-24 19:43:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.565217391304348) internal successors, (36), 28 states have internal predecessors, (36), 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) [2024-10-24 19:43:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2024-10-24 19:43:11,673 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 6 [2024-10-24 19:43:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:11,673 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2024-10-24 19:43:11,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:43:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2024-10-24 19:43:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 19:43:11,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:11,675 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:43:11,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:43:11,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:11,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:11,676 INFO L85 PathProgramCache]: Analyzing trace with hash 328561491, now seen corresponding path program 1 times [2024-10-24 19:43:11,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:11,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733942571] [2024-10-24 19:43:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:11,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:11,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:43:11,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:11,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733942571] [2024-10-24 19:43:11,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733942571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:43:11,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:43:11,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:43:11,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653954762] [2024-10-24 19:43:11,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:43:11,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:43:11,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:11,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:43:11,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:43:11,737 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 3 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) [2024-10-24 19:43:11,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:11,799 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2024-10-24 19:43:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:43:11,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 3 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 [2024-10-24 19:43:11,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:11,803 INFO L225 Difference]: With dead ends: 35 [2024-10-24 19:43:11,804 INFO L226 Difference]: Without dead ends: 34 [2024-10-24 19:43:11,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:43:11,806 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 31 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:11,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 31 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:43:11,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-24 19:43:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-10-24 19:43:11,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.4782608695652173) 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) [2024-10-24 19:43:11,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-10-24 19:43:11,821 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2024-10-24 19:43:11,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:11,822 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-10-24 19:43:11,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 3 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) [2024-10-24 19:43:11,822 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-10-24 19:43:11,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-24 19:43:11,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:11,823 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:43:11,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:43:11,823 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:11,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:11,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1705173347, now seen corresponding path program 1 times [2024-10-24 19:43:11,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:11,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622198994] [2024-10-24 19:43:11,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:11,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:43:11,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:11,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622198994] [2024-10-24 19:43:11,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622198994] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:11,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71768501] [2024-10-24 19:43:11,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:11,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:11,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:11,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:11,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 19:43:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 19:43:12,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:43:12,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:43:12,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71768501] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:12,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:12,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-24 19:43:12,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560612920] [2024-10-24 19:43:12,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:12,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 19:43:12,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:12,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 19:43:12,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-24 19:43:12,174 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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) [2024-10-24 19:43:12,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:12,251 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2024-10-24 19:43:12,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:43:12,252 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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 11 [2024-10-24 19:43:12,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:12,253 INFO L225 Difference]: With dead ends: 38 [2024-10-24 19:43:12,253 INFO L226 Difference]: Without dead ends: 37 [2024-10-24 19:43:12,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-24 19:43:12,254 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 92 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:12,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 68 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:43:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-24 19:43:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2024-10-24 19:43:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.434782608695652) internal successors, (33), 26 states have internal predecessors, (33), 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) [2024-10-24 19:43:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-10-24 19:43:12,268 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 11 [2024-10-24 19:43:12,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:12,269 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-10-24 19:43:12,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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) [2024-10-24 19:43:12,269 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-10-24 19:43:12,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 19:43:12,270 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:12,270 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:43:12,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 19:43:12,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:12,475 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:12,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:12,476 INFO L85 PathProgramCache]: Analyzing trace with hash -753523853, now seen corresponding path program 1 times [2024-10-24 19:43:12,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:12,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382687889] [2024-10-24 19:43:12,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:12,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 19:43:12,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:12,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382687889] [2024-10-24 19:43:12,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382687889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:43:12,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:43:12,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:43:12,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146960421] [2024-10-24 19:43:12,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:43:12,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:43:12,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:12,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:43:12,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:43:12,543 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-24 19:43:12,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:12,560 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2024-10-24 19:43:12,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:43:12,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 15 [2024-10-24 19:43:12,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:12,564 INFO L225 Difference]: With dead ends: 31 [2024-10-24 19:43:12,564 INFO L226 Difference]: Without dead ends: 30 [2024-10-24 19:43:12,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:43:12,566 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:12,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 27 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:43:12,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-24 19:43:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-24 19:43:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 25 states have internal predecessors, (31), 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) [2024-10-24 19:43:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2024-10-24 19:43:12,576 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 15 [2024-10-24 19:43:12,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:12,577 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-10-24 19:43:12,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-24 19:43:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-10-24 19:43:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 19:43:12,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:12,578 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:43:12,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:43:12,578 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:12,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash -753523798, now seen corresponding path program 1 times [2024-10-24 19:43:12,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:12,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652371505] [2024-10-24 19:43:12,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:12,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 19:43:12,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:12,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652371505] [2024-10-24 19:43:12,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652371505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:43:12,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:43:12,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:43:12,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016503209] [2024-10-24 19:43:12,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:43:12,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:43:12,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:12,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:43:12,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:43:12,622 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-24 19:43:12,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:12,640 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2024-10-24 19:43:12,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:43:12,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 15 [2024-10-24 19:43:12,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:12,643 INFO L225 Difference]: With dead ends: 30 [2024-10-24 19:43:12,643 INFO L226 Difference]: Without dead ends: 29 [2024-10-24 19:43:12,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:43:12,645 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:12,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 31 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:43:12,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-10-24 19:43:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-10-24 19:43:12,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 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) [2024-10-24 19:43:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2024-10-24 19:43:12,654 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 15 [2024-10-24 19:43:12,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:12,655 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2024-10-24 19:43:12,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-10-24 19:43:12,655 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2024-10-24 19:43:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-24 19:43:12,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:12,656 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:43:12,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:43:12,657 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:12,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:12,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1884402903, now seen corresponding path program 1 times [2024-10-24 19:43:12,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:12,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52650678] [2024-10-24 19:43:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:12,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 19:43:12,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:12,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52650678] [2024-10-24 19:43:12,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52650678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:43:12,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:43:12,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:43:12,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967678325] [2024-10-24 19:43:12,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:43:12,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:43:12,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:12,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:43:12,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:43:12,721 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-10-24 19:43:12,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:12,752 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2024-10-24 19:43:12,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:43:12,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 [2024-10-24 19:43:12,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:12,753 INFO L225 Difference]: With dead ends: 36 [2024-10-24 19:43:12,753 INFO L226 Difference]: Without dead ends: 33 [2024-10-24 19:43:12,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:43:12,754 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:12,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:43:12,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-10-24 19:43:12,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-10-24 19:43:12,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 28 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) [2024-10-24 19:43:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2024-10-24 19:43:12,761 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 16 [2024-10-24 19:43:12,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:12,761 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2024-10-24 19:43:12,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-10-24 19:43:12,762 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2024-10-24 19:43:12,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-24 19:43:12,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:12,763 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:43:12,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:43:12,763 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:12,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:12,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1884401205, now seen corresponding path program 1 times [2024-10-24 19:43:12,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:12,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423453520] [2024-10-24 19:43:12,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:12,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 19:43:12,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:12,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423453520] [2024-10-24 19:43:12,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423453520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:43:12,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:43:12,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:43:12,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747061870] [2024-10-24 19:43:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:43:12,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:43:12,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:12,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:43:12,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:43:12,854 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2024-10-24 19:43:12,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:12,875 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2024-10-24 19:43:12,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:43:12,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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 [2024-10-24 19:43:12,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:12,876 INFO L225 Difference]: With dead ends: 59 [2024-10-24 19:43:12,876 INFO L226 Difference]: Without dead ends: 37 [2024-10-24 19:43:12,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:43:12,877 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 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 [2024-10-24 19:43:12,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:43:12,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-24 19:43:12,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-24 19:43:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 31 states have internal predecessors, (37), 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) [2024-10-24 19:43:12,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2024-10-24 19:43:12,885 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 16 [2024-10-24 19:43:12,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:12,885 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2024-10-24 19:43:12,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2024-10-24 19:43:12,885 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2024-10-24 19:43:12,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-24 19:43:12,886 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:12,886 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:43:12,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:43:12,887 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:12,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:12,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1311627336, now seen corresponding path program 1 times [2024-10-24 19:43:12,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:12,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468299052] [2024-10-24 19:43:12,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:12,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:12,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:13,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:13,053 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-24 19:43:13,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:13,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468299052] [2024-10-24 19:43:13,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468299052] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:13,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414063746] [2024-10-24 19:43:13,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:13,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:13,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:13,056 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:13,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 19:43:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:13,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 19:43:13,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:13,149 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-24 19:43:13,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:43:13,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414063746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:43:13,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 19:43:13,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-10-24 19:43:13,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060846079] [2024-10-24 19:43:13,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:43:13,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:43:13,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:13,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:43:13,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-24 19:43:13,151 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-10-24 19:43:13,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:13,184 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2024-10-24 19:43:13,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:43:13,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 27 [2024-10-24 19:43:13,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:13,186 INFO L225 Difference]: With dead ends: 37 [2024-10-24 19:43:13,186 INFO L226 Difference]: Without dead ends: 36 [2024-10-24 19:43:13,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-24 19:43:13,187 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:13,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:43:13,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-24 19:43:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-10-24 19:43:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 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) [2024-10-24 19:43:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2024-10-24 19:43:13,194 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 27 [2024-10-24 19:43:13,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:13,194 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2024-10-24 19:43:13,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-10-24 19:43:13,195 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2024-10-24 19:43:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-24 19:43:13,196 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:13,196 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:43:13,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 19:43:13,396 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 [2024-10-24 19:43:13,397 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:13,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash 922539257, now seen corresponding path program 1 times [2024-10-24 19:43:13,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:13,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802319283] [2024-10-24 19:43:13,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:13,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:13,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:13,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:13,543 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-24 19:43:13,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802319283] [2024-10-24 19:43:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802319283] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427443248] [2024-10-24 19:43:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:13,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:13,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:13,548 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:13,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 19:43:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:13,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 19:43:13,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 19:43:13,653 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 19:43:13,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427443248] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:13,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:13,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2024-10-24 19:43:13,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520915958] [2024-10-24 19:43:13,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:13,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 19:43:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 19:43:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-10-24 19:43:13,799 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 18 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 13 states have internal predecessors, (42), 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) [2024-10-24 19:43:13,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:13,863 INFO L93 Difference]: Finished difference Result 93 states and 112 transitions. [2024-10-24 19:43:13,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 19:43:13,863 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 13 states have internal predecessors, (42), 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 30 [2024-10-24 19:43:13,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:13,865 INFO L225 Difference]: With dead ends: 93 [2024-10-24 19:43:13,865 INFO L226 Difference]: Without dead ends: 71 [2024-10-24 19:43:13,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-10-24 19:43:13,866 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:13,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 100 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:43:13,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-24 19:43:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 61. [2024-10-24 19:43:13,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 52 states have internal predecessors, (61), 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) [2024-10-24 19:43:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2024-10-24 19:43:13,877 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 30 [2024-10-24 19:43:13,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:13,877 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2024-10-24 19:43:13,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 13 states have internal predecessors, (42), 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) [2024-10-24 19:43:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2024-10-24 19:43:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 19:43:13,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:13,879 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 19:43:13,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 19:43:14,079 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 [2024-10-24 19:43:14,080 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:14,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:14,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1698340835, now seen corresponding path program 2 times [2024-10-24 19:43:14,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:14,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015931120] [2024-10-24 19:43:14,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:14,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:14,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:14,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:14,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:14,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:14,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:14,208 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 19:43:14,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:14,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015931120] [2024-10-24 19:43:14,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015931120] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:14,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168325617] [2024-10-24 19:43:14,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:43:14,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:14,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:14,211 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:14,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 19:43:14,262 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:43:14,263 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:43:14,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 19:43:14,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 57 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-10-24 19:43:14,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 57 proven. 3 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-10-24 19:43:14,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168325617] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:14,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:14,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 19 [2024-10-24 19:43:14,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237012241] [2024-10-24 19:43:14,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:14,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 19:43:14,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:14,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 19:43:14,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-10-24 19:43:14,930 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 15 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 19:43:15,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:15,087 INFO L93 Difference]: Finished difference Result 132 states and 157 transitions. [2024-10-24 19:43:15,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 19:43:15,087 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 15 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) Word has length 66 [2024-10-24 19:43:15,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:15,088 INFO L225 Difference]: With dead ends: 132 [2024-10-24 19:43:15,088 INFO L226 Difference]: Without dead ends: 86 [2024-10-24 19:43:15,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 123 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=546, Unknown=0, NotChecked=0, Total=650 [2024-10-24 19:43:15,090 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:15,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 19:43:15,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-24 19:43:15,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 69. [2024-10-24 19:43:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.1333333333333333) internal successors, (68), 60 states have internal predecessors, (68), 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) [2024-10-24 19:43:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2024-10-24 19:43:15,100 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 66 [2024-10-24 19:43:15,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:15,100 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2024-10-24 19:43:15,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 15 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 19:43:15,101 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2024-10-24 19:43:15,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-24 19:43:15,103 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:15,103 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2024-10-24 19:43:15,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 19:43:15,303 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 [2024-10-24 19:43:15,303 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:15,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:15,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2087979258, now seen corresponding path program 3 times [2024-10-24 19:43:15,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:15,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371224095] [2024-10-24 19:43:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:15,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:15,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:15,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:15,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:15,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:15,684 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 74 proven. 15 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-10-24 19:43:15,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:15,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371224095] [2024-10-24 19:43:15,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371224095] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:15,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139387389] [2024-10-24 19:43:15,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:43:15,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:15,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:15,686 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:15,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 19:43:15,737 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-24 19:43:15,737 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:43:15,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 19:43:15,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:15,835 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 41 proven. 5 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-10-24 19:43:15,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:16,047 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 41 proven. 5 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-10-24 19:43:16,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139387389] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:16,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:16,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 25 [2024-10-24 19:43:16,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647692246] [2024-10-24 19:43:16,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:16,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 19:43:16,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:16,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 19:43:16,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2024-10-24 19:43:16,050 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand has 25 states, 25 states have (on average 2.56) internal successors, (64), 22 states have internal predecessors, (64), 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) [2024-10-24 19:43:16,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:16,375 INFO L93 Difference]: Finished difference Result 177 states and 210 transitions. [2024-10-24 19:43:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-24 19:43:16,376 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.56) internal successors, (64), 22 states have internal predecessors, (64), 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 75 [2024-10-24 19:43:16,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:16,378 INFO L225 Difference]: With dead ends: 177 [2024-10-24 19:43:16,378 INFO L226 Difference]: Without dead ends: 139 [2024-10-24 19:43:16,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=239, Invalid=1167, Unknown=0, NotChecked=0, Total=1406 [2024-10-24 19:43:16,382 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:16,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 19:43:16,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-10-24 19:43:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 93. [2024-10-24 19:43:16,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 84 states have (on average 1.119047619047619) internal successors, (94), 84 states have internal predecessors, (94), 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) [2024-10-24 19:43:16,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2024-10-24 19:43:16,404 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 75 [2024-10-24 19:43:16,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:16,407 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2024-10-24 19:43:16,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.56) internal successors, (64), 22 states have internal predecessors, (64), 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) [2024-10-24 19:43:16,407 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2024-10-24 19:43:16,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 19:43:16,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:16,410 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2024-10-24 19:43:16,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 19:43:16,610 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 [2024-10-24 19:43:16,610 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:16,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:16,611 INFO L85 PathProgramCache]: Analyzing trace with hash 824513763, now seen corresponding path program 4 times [2024-10-24 19:43:16,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:16,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747590226] [2024-10-24 19:43:16,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:16,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:16,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 19:43:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:16,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:16,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:17,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:17,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 160 proven. 42 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-24 19:43:17,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:17,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747590226] [2024-10-24 19:43:17,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747590226] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:17,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586566332] [2024-10-24 19:43:17,123 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 19:43:17,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:17,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:17,125 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:17,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 19:43:17,191 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 19:43:17,191 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:43:17,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 19:43:17,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 167 proven. 35 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-24 19:43:17,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 167 proven. 35 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-24 19:43:18,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586566332] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:18,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:18,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 23 [2024-10-24 19:43:18,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28075655] [2024-10-24 19:43:18,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:18,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:43:18,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:18,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:43:18,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:43:18,043 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand has 23 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 18 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 19:43:18,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:18,244 INFO L93 Difference]: Finished difference Result 139 states and 156 transitions. [2024-10-24 19:43:18,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 19:43:18,245 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 18 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) Word has length 100 [2024-10-24 19:43:18,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:18,246 INFO L225 Difference]: With dead ends: 139 [2024-10-24 19:43:18,246 INFO L226 Difference]: Without dead ends: 96 [2024-10-24 19:43:18,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 190 SyntacticMatches, 16 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2024-10-24 19:43:18,247 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:18,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 273 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 19:43:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-10-24 19:43:18,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-10-24 19:43:18,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 87 states have (on average 1.103448275862069) internal successors, (96), 87 states have internal predecessors, (96), 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) [2024-10-24 19:43:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2024-10-24 19:43:18,262 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 100 [2024-10-24 19:43:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:18,264 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2024-10-24 19:43:18,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 18 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-24 19:43:18,264 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2024-10-24 19:43:18,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 19:43:18,269 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:18,269 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2024-10-24 19:43:18,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 19:43:18,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:18,470 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:18,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:18,470 INFO L85 PathProgramCache]: Analyzing trace with hash -526251226, now seen corresponding path program 5 times [2024-10-24 19:43:18,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:18,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255820399] [2024-10-24 19:43:18,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:18,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:18,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 19:43:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:18,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:18,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:18,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:18,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-10-24 19:43:18,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:18,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255820399] [2024-10-24 19:43:18,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255820399] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:18,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539759146] [2024-10-24 19:43:18,889 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 19:43:18,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:18,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:18,892 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:18,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 19:43:18,965 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-10-24 19:43:18,966 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:43:18,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 19:43:18,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 12 proven. 215 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-10-24 19:43:19,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:19,821 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 12 proven. 215 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-10-24 19:43:19,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539759146] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:19,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:19,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2024-10-24 19:43:19,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476396291] [2024-10-24 19:43:19,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:19,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-24 19:43:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:19,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-24 19:43:19,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 19:43:19,824 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 33 states, 32 states have (on average 2.6875) internal successors, (86), 24 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 19:43:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:20,019 INFO L93 Difference]: Finished difference Result 309 states and 347 transitions. [2024-10-24 19:43:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-24 19:43:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.6875) internal successors, (86), 24 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 103 [2024-10-24 19:43:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:20,022 INFO L225 Difference]: With dead ends: 309 [2024-10-24 19:43:20,022 INFO L226 Difference]: Without dead ends: 213 [2024-10-24 19:43:20,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1401, Unknown=0, NotChecked=0, Total=1722 [2024-10-24 19:43:20,023 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:20,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 19:43:20,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-24 19:43:20,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 171. [2024-10-24 19:43:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 157 states have (on average 1.089171974522293) internal successors, (171), 157 states have internal predecessors, (171), 3 states have call successors, (3), 2 states have call predecessors, (3), 10 states have return successors, (11), 11 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 19:43:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 185 transitions. [2024-10-24 19:43:20,047 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 185 transitions. Word has length 103 [2024-10-24 19:43:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:20,049 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 185 transitions. [2024-10-24 19:43:20,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.6875) internal successors, (86), 24 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 19:43:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 185 transitions. [2024-10-24 19:43:20,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-24 19:43:20,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:20,053 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2024-10-24 19:43:20,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 19:43:20,254 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 [2024-10-24 19:43:20,254 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:20,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:20,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1681056048, now seen corresponding path program 6 times [2024-10-24 19:43:20,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:20,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853817705] [2024-10-24 19:43:20,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:20,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 850 proven. 51 refuted. 0 times theorem prover too weak. 849 trivial. 0 not checked. [2024-10-24 19:43:20,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:20,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853817705] [2024-10-24 19:43:20,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853817705] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:20,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648510520] [2024-10-24 19:43:20,987 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 19:43:20,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:20,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:20,989 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:20,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 19:43:21,090 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-10-24 19:43:21,090 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:43:21,092 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 19:43:21,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 607 proven. 68 refuted. 0 times theorem prover too weak. 1075 trivial. 0 not checked. [2024-10-24 19:43:21,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 607 proven. 68 refuted. 0 times theorem prover too weak. 1075 trivial. 0 not checked. [2024-10-24 19:43:21,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648510520] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:21,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:21,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 12] total 39 [2024-10-24 19:43:21,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713109395] [2024-10-24 19:43:21,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:21,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-10-24 19:43:21,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:21,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-24 19:43:21,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1284, Unknown=0, NotChecked=0, Total=1482 [2024-10-24 19:43:21,860 INFO L87 Difference]: Start difference. First operand 171 states and 185 transitions. Second operand has 39 states, 39 states have (on average 2.3333333333333335) internal successors, (91), 36 states have internal predecessors, (91), 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) [2024-10-24 19:43:23,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:23,138 INFO L93 Difference]: Finished difference Result 734 states and 846 transitions. [2024-10-24 19:43:23,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-10-24 19:43:23,139 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.3333333333333335) internal successors, (91), 36 states have internal predecessors, (91), 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 193 [2024-10-24 19:43:23,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:23,141 INFO L225 Difference]: With dead ends: 734 [2024-10-24 19:43:23,141 INFO L226 Difference]: Without dead ends: 574 [2024-10-24 19:43:23,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1879 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1043, Invalid=7147, Unknown=0, NotChecked=0, Total=8190 [2024-10-24 19:43:23,145 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:23,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 185 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 19:43:23,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-10-24 19:43:23,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 239. [2024-10-24 19:43:23,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 223 states have (on average 1.094170403587444) internal successors, (244), 223 states have internal predecessors, (244), 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) [2024-10-24 19:43:23,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 260 transitions. [2024-10-24 19:43:23,176 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 260 transitions. Word has length 193 [2024-10-24 19:43:23,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:23,176 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 260 transitions. [2024-10-24 19:43:23,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.3333333333333335) internal successors, (91), 36 states have internal predecessors, (91), 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) [2024-10-24 19:43:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 260 transitions. [2024-10-24 19:43:23,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-24 19:43:23,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:23,179 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2024-10-24 19:43:23,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 19:43:23,384 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 [2024-10-24 19:43:23,384 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:23,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:23,385 INFO L85 PathProgramCache]: Analyzing trace with hash 810015932, now seen corresponding path program 7 times [2024-10-24 19:43:23,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:23,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829201956] [2024-10-24 19:43:23,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:23,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:23,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:23,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2765 backedges. 1654 proven. 90 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2024-10-24 19:43:24,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:24,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829201956] [2024-10-24 19:43:24,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829201956] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:24,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853168776] [2024-10-24 19:43:24,397 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 19:43:24,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:24,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:24,399 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:24,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 19:43:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:24,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 19:43:24,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2765 backedges. 1478 proven. 177 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2024-10-24 19:43:24,840 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2765 backedges. 1478 proven. 177 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2024-10-24 19:43:27,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853168776] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:27,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:27,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 28, 28] total 37 [2024-10-24 19:43:27,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731505254] [2024-10-24 19:43:27,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:27,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-24 19:43:27,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:27,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-24 19:43:27,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1180, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 19:43:27,651 INFO L87 Difference]: Start difference. First operand 239 states and 260 transitions. Second operand has 37 states, 37 states have (on average 2.4864864864864864) internal successors, (92), 31 states have internal predecessors, (92), 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) [2024-10-24 19:43:28,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:28,323 INFO L93 Difference]: Finished difference Result 507 states and 553 transitions. [2024-10-24 19:43:28,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-24 19:43:28,324 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.4864864864864864) internal successors, (92), 31 states have internal predecessors, (92), 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 223 [2024-10-24 19:43:28,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:28,326 INFO L225 Difference]: With dead ends: 507 [2024-10-24 19:43:28,326 INFO L226 Difference]: Without dead ends: 330 [2024-10-24 19:43:28,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 426 SyntacticMatches, 26 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1884 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=512, Invalid=3910, Unknown=0, NotChecked=0, Total=4422 [2024-10-24 19:43:28,330 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:28,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 19:43:28,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-10-24 19:43:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 300. [2024-10-24 19:43:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 280 states have (on average 1.0785714285714285) internal successors, (302), 280 states have internal predecessors, (302), 3 states have call successors, (3), 2 states have call predecessors, (3), 16 states have return successors, (17), 17 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-24 19:43:28,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 322 transitions. [2024-10-24 19:43:28,363 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 322 transitions. Word has length 223 [2024-10-24 19:43:28,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:28,363 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 322 transitions. [2024-10-24 19:43:28,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.4864864864864864) internal successors, (92), 31 states have internal predecessors, (92), 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) [2024-10-24 19:43:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 322 transitions. [2024-10-24 19:43:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-10-24 19:43:28,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:28,367 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 13, 12, 12, 12, 12, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2024-10-24 19:43:28,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 19:43:28,570 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 [2024-10-24 19:43:28,571 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:28,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:28,571 INFO L85 PathProgramCache]: Analyzing trace with hash 47668569, now seen corresponding path program 8 times [2024-10-24 19:43:28,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:28,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674677645] [2024-10-24 19:43:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:28,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:28,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 19:43:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3237 backedges. 1921 proven. 138 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2024-10-24 19:43:29,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:29,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674677645] [2024-10-24 19:43:29,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674677645] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:29,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026968898] [2024-10-24 19:43:29,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:43:29,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:29,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:29,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:29,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 19:43:29,934 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:43:29,934 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:43:29,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-24 19:43:29,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3237 backedges. 1903 proven. 311 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2024-10-24 19:43:30,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:33,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3237 backedges. 1903 proven. 311 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2024-10-24 19:43:33,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026968898] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:33,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:33,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 33, 33] total 44 [2024-10-24 19:43:33,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243818331] [2024-10-24 19:43:33,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:33,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-10-24 19:43:33,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:33,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-10-24 19:43:33,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1691, Unknown=0, NotChecked=0, Total=1892 [2024-10-24 19:43:33,766 INFO L87 Difference]: Start difference. First operand 300 states and 322 transitions. Second operand has 44 states, 44 states have (on average 2.409090909090909) internal successors, (106), 37 states have internal predecessors, (106), 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) [2024-10-24 19:43:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:34,881 INFO L93 Difference]: Finished difference Result 619 states and 664 transitions. [2024-10-24 19:43:34,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-10-24 19:43:34,881 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.409090909090909) internal successors, (106), 37 states have internal predecessors, (106), 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 242 [2024-10-24 19:43:34,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:34,884 INFO L225 Difference]: With dead ends: 619 [2024-10-24 19:43:34,884 INFO L226 Difference]: Without dead ends: 432 [2024-10-24 19:43:34,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 456 SyntacticMatches, 31 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=823, Invalid=6659, Unknown=0, NotChecked=0, Total=7482 [2024-10-24 19:43:34,890 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:34,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1786 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 19:43:34,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-10-24 19:43:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 380. [2024-10-24 19:43:34,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 356 states have (on average 1.0674157303370786) internal successors, (380), 356 states have internal predecessors, (380), 3 states have call successors, (3), 2 states have call predecessors, (3), 20 states have return successors, (21), 21 states have call predecessors, (21), 2 states have call successors, (21) [2024-10-24 19:43:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 404 transitions. [2024-10-24 19:43:34,959 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 404 transitions. Word has length 242 [2024-10-24 19:43:34,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:34,959 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 404 transitions. [2024-10-24 19:43:34,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.409090909090909) internal successors, (106), 37 states have internal predecessors, (106), 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) [2024-10-24 19:43:34,962 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 404 transitions. [2024-10-24 19:43:34,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-10-24 19:43:34,966 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:34,966 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 13, 12, 12, 12, 12, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2024-10-24 19:43:34,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-24 19:43:35,167 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 [2024-10-24 19:43:35,167 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:35,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:35,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1859274657, now seen corresponding path program 9 times [2024-10-24 19:43:35,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:35,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391173098] [2024-10-24 19:43:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:35,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:35,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 19:43:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:35,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:36,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:36,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:36,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:36,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:36,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:36,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:36,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:36,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3494 backedges. 1627 proven. 519 refuted. 0 times theorem prover too weak. 1348 trivial. 0 not checked. [2024-10-24 19:43:36,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391173098] [2024-10-24 19:43:36,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391173098] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303082977] [2024-10-24 19:43:36,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:43:36,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:36,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:36,434 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:36,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 19:43:36,648 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-10-24 19:43:36,648 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:43:36,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 19:43:36,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3494 backedges. 838 proven. 70 refuted. 0 times theorem prover too weak. 2586 trivial. 0 not checked. [2024-10-24 19:43:37,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3494 backedges. 838 proven. 70 refuted. 0 times theorem prover too weak. 2586 trivial. 0 not checked. [2024-10-24 19:43:37,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303082977] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:37,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:37,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 17, 17] total 66 [2024-10-24 19:43:37,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784356513] [2024-10-24 19:43:37,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:37,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-10-24 19:43:37,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:37,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-10-24 19:43:37,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=533, Invalid=3757, Unknown=0, NotChecked=0, Total=4290 [2024-10-24 19:43:37,722 INFO L87 Difference]: Start difference. First operand 380 states and 404 transitions. Second operand has 66 states, 66 states have (on average 1.8333333333333333) internal successors, (121), 64 states have internal predecessors, (121), 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) [2024-10-24 19:43:40,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:40,175 INFO L93 Difference]: Finished difference Result 1354 states and 1542 transitions. [2024-10-24 19:43:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-10-24 19:43:40,176 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 1.8333333333333333) internal successors, (121), 64 states have internal predecessors, (121), 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 248 [2024-10-24 19:43:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:40,183 INFO L225 Difference]: With dead ends: 1354 [2024-10-24 19:43:40,183 INFO L226 Difference]: Without dead ends: 1150 [2024-10-24 19:43:40,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5267 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2370, Invalid=18510, Unknown=0, NotChecked=0, Total=20880 [2024-10-24 19:43:40,189 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:40,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 302 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 19:43:40,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-10-24 19:43:40,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 676. [2024-10-24 19:43:40,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 642 states have (on average 1.060747663551402) internal successors, (681), 642 states have internal predecessors, (681), 3 states have call successors, (3), 2 states have call predecessors, (3), 30 states have return successors, (31), 31 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-24 19:43:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 715 transitions. [2024-10-24 19:43:40,276 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 715 transitions. Word has length 248 [2024-10-24 19:43:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:40,277 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 715 transitions. [2024-10-24 19:43:40,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.8333333333333333) internal successors, (121), 64 states have internal predecessors, (121), 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) [2024-10-24 19:43:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 715 transitions. [2024-10-24 19:43:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-10-24 19:43:40,282 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:40,282 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2024-10-24 19:43:40,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-24 19:43:40,483 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 [2024-10-24 19:43:40,483 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:40,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:40,484 INFO L85 PathProgramCache]: Analyzing trace with hash 137043417, now seen corresponding path program 10 times [2024-10-24 19:43:40,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:40,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091735799] [2024-10-24 19:43:40,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:40,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:41,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 19:43:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:41,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:42,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:42,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:42,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:42,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:42,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:42,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:43,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:43,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 465 proven. 3860 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2024-10-24 19:43:43,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:43,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091735799] [2024-10-24 19:43:43,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091735799] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:43,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595293316] [2024-10-24 19:43:43,153 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 19:43:43,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:43,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:43,154 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:43,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 19:43:43,375 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 19:43:43,376 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:43:43,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-24 19:43:43,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 0 proven. 3987 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2024-10-24 19:43:43,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:43:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 0 proven. 3987 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2024-10-24 19:43:49,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595293316] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:43:49,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:43:49,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 31, 31] total 95 [2024-10-24 19:43:49,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964718945] [2024-10-24 19:43:49,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:43:49,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-10-24 19:43:49,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:43:49,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-10-24 19:43:49,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1027, Invalid=7903, Unknown=0, NotChecked=0, Total=8930 [2024-10-24 19:43:49,184 INFO L87 Difference]: Start difference. First operand 676 states and 715 transitions. Second operand has 95 states, 95 states have (on average 2.305263157894737) internal successors, (219), 74 states have internal predecessors, (219), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-24 19:43:50,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:43:50,468 INFO L93 Difference]: Finished difference Result 1923 states and 2088 transitions. [2024-10-24 19:43:50,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2024-10-24 19:43:50,469 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.305263157894737) internal successors, (219), 74 states have internal predecessors, (219), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) Word has length 268 [2024-10-24 19:43:50,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:43:50,473 INFO L225 Difference]: With dead ends: 1923 [2024-10-24 19:43:50,474 INFO L226 Difference]: Without dead ends: 841 [2024-10-24 19:43:50,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16003 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=5082, Invalid=32360, Unknown=0, NotChecked=0, Total=37442 [2024-10-24 19:43:50,483 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 19:43:50,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 263 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 19:43:50,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-10-24 19:43:50,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 609. [2024-10-24 19:43:50,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 584 states have (on average 1.0376712328767124) internal successors, (606), 584 states have internal predecessors, (606), 3 states have call successors, (3), 2 states have call predecessors, (3), 21 states have return successors, (22), 22 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-24 19:43:50,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 631 transitions. [2024-10-24 19:43:50,540 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 631 transitions. Word has length 268 [2024-10-24 19:43:50,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:43:50,541 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 631 transitions. [2024-10-24 19:43:50,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.305263157894737) internal successors, (219), 74 states have internal predecessors, (219), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) [2024-10-24 19:43:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 631 transitions. [2024-10-24 19:43:50,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-10-24 19:43:50,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:43:50,546 INFO L215 NwaCegarLoop]: trace histogram [139, 139, 139, 24, 23, 23, 23, 23, 21, 21, 21, 21, 21, 20, 1, 1, 1, 1, 1] [2024-10-24 19:43:50,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-24 19:43:50,746 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 [2024-10-24 19:43:50,747 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:43:50,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:43:50,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1728521794, now seen corresponding path program 11 times [2024-10-24 19:43:50,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:43:50,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78122437] [2024-10-24 19:43:50,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:43:50,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:43:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:52,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 19:43:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:53,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:53,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:53,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:53,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:43:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:43:54,515 INFO L134 CoverageAnalysis]: Checked inductivity of 34263 backedges. 12034 proven. 336 refuted. 0 times theorem prover too weak. 21893 trivial. 0 not checked. [2024-10-24 19:43:54,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:43:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78122437] [2024-10-24 19:43:54,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78122437] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:43:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885199436] [2024-10-24 19:43:54,516 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 19:43:54,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:43:54,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:43:54,518 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:43:54,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 19:43:54,812 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-10-24 19:43:54,812 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:43:54,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-10-24 19:43:54,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:43:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 34263 backedges. 16642 proven. 1203 refuted. 0 times theorem prover too weak. 16418 trivial. 0 not checked. [2024-10-24 19:43:55,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:44:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 34263 backedges. 16874 proven. 971 refuted. 0 times theorem prover too weak. 16418 trivial. 0 not checked. [2024-10-24 19:44:06,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885199436] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:44:06,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:44:06,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 42, 42] total 61 [2024-10-24 19:44:06,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934935478] [2024-10-24 19:44:06,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:44:06,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-10-24 19:44:06,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:44:06,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-10-24 19:44:06,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=3268, Unknown=0, NotChecked=0, Total=3660 [2024-10-24 19:44:06,398 INFO L87 Difference]: Start difference. First operand 609 states and 631 transitions. Second operand has 61 states, 61 states have (on average 2.2295081967213113) internal successors, (136), 55 states have internal predecessors, (136), 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) [2024-10-24 19:44:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:44:08,776 INFO L93 Difference]: Finished difference Result 1042 states and 1094 transitions. [2024-10-24 19:44:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-10-24 19:44:08,777 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 2.2295081967213113) internal successors, (136), 55 states have internal predecessors, (136), 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 663 [2024-10-24 19:44:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:44:08,780 INFO L225 Difference]: With dead ends: 1042 [2024-10-24 19:44:08,780 INFO L226 Difference]: Without dead ends: 639 [2024-10-24 19:44:08,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1484 GetRequests, 1310 SyntacticMatches, 35 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6996 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2410, Invalid=17330, Unknown=0, NotChecked=0, Total=19740 [2024-10-24 19:44:08,785 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 19:44:08,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2753 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 19:44:08,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-10-24 19:44:08,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2024-10-24 19:44:08,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 614 states have (on average 1.0325732899022801) internal successors, (634), 614 states have internal predecessors, (634), 3 states have call successors, (3), 2 states have call predecessors, (3), 21 states have return successors, (22), 22 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-24 19:44:08,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 659 transitions. [2024-10-24 19:44:08,846 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 659 transitions. Word has length 663 [2024-10-24 19:44:08,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:44:08,847 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 659 transitions. [2024-10-24 19:44:08,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 2.2295081967213113) internal successors, (136), 55 states have internal predecessors, (136), 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) [2024-10-24 19:44:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 659 transitions. [2024-10-24 19:44:08,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2024-10-24 19:44:08,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:44:08,852 INFO L215 NwaCegarLoop]: trace histogram [150, 150, 150, 24, 23, 23, 23, 23, 21, 21, 21, 21, 21, 20, 1, 1, 1, 1, 1] [2024-10-24 19:44:08,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-24 19:44:09,053 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 [2024-10-24 19:44:09,053 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:44:09,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:44:09,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1426044087, now seen corresponding path program 12 times [2024-10-24 19:44:09,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:44:09,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129344453] [2024-10-24 19:44:09,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:44:09,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:44:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:10,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 19:44:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:11,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:12,618 INFO L134 CoverageAnalysis]: Checked inductivity of 39246 backedges. 13747 proven. 420 refuted. 0 times theorem prover too weak. 25079 trivial. 0 not checked. [2024-10-24 19:44:12,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:44:12,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129344453] [2024-10-24 19:44:12,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129344453] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:44:12,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112432385] [2024-10-24 19:44:12,618 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 19:44:12,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:44:12,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:44:12,620 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:44:12,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 19:44:13,069 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2024-10-24 19:44:13,069 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:44:13,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 19:44:13,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:44:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 39246 backedges. 9954 proven. 549 refuted. 0 times theorem prover too weak. 28743 trivial. 0 not checked. [2024-10-24 19:44:13,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:44:15,484 INFO L134 CoverageAnalysis]: Checked inductivity of 39246 backedges. 9954 proven. 549 refuted. 0 times theorem prover too weak. 28743 trivial. 0 not checked. [2024-10-24 19:44:15,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112432385] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:44:15,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:44:15,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 24, 24] total 87 [2024-10-24 19:44:15,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78271998] [2024-10-24 19:44:15,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:44:15,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2024-10-24 19:44:15,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:44:15,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2024-10-24 19:44:15,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=870, Invalid=6612, Unknown=0, NotChecked=0, Total=7482 [2024-10-24 19:44:15,488 INFO L87 Difference]: Start difference. First operand 639 states and 659 transitions. Second operand has 87 states, 87 states have (on average 1.8735632183908046) internal successors, (163), 84 states have internal predecessors, (163), 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) [2024-10-24 19:44:19,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:44:19,313 INFO L93 Difference]: Finished difference Result 1986 states and 2230 transitions. [2024-10-24 19:44:19,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2024-10-24 19:44:19,313 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 1.8735632183908046) internal successors, (163), 84 states have internal predecessors, (163), 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 696 [2024-10-24 19:44:19,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:44:19,320 INFO L225 Difference]: With dead ends: 1986 [2024-10-24 19:44:19,320 INFO L226 Difference]: Without dead ends: 1523 [2024-10-24 19:44:19,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1598 GetRequests, 1389 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12258 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=4817, Invalid=39493, Unknown=0, NotChecked=0, Total=44310 [2024-10-24 19:44:19,329 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 19:44:19,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 314 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 19:44:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2024-10-24 19:44:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 720. [2024-10-24 19:44:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 695 states have (on average 1.0460431654676259) internal successors, (727), 695 states have internal predecessors, (727), 3 states have call successors, (3), 2 states have call predecessors, (3), 21 states have return successors, (22), 22 states have call predecessors, (22), 2 states have call successors, (22) [2024-10-24 19:44:19,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 752 transitions. [2024-10-24 19:44:19,417 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 752 transitions. Word has length 696 [2024-10-24 19:44:19,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:44:19,418 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 752 transitions. [2024-10-24 19:44:19,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 1.8735632183908046) internal successors, (163), 84 states have internal predecessors, (163), 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) [2024-10-24 19:44:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 752 transitions. [2024-10-24 19:44:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2024-10-24 19:44:19,424 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:44:19,424 INFO L215 NwaCegarLoop]: trace histogram [173, 173, 173, 24, 23, 23, 23, 23, 21, 21, 21, 21, 21, 20, 1, 1, 1, 1, 1] [2024-10-24 19:44:19,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-24 19:44:19,624 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 [2024-10-24 19:44:19,625 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-24 19:44:19,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:44:19,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1506094046, now seen corresponding path program 13 times [2024-10-24 19:44:19,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:44:19,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058216397] [2024-10-24 19:44:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:44:19,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:44:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:21,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 19:44:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:22,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:23,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 19:44:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,450 INFO L134 CoverageAnalysis]: Checked inductivity of 50838 backedges. 24332 proven. 513 refuted. 0 times theorem prover too weak. 25993 trivial. 0 not checked. [2024-10-24 19:44:24,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:44:24,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058216397] [2024-10-24 19:44:24,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058216397] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:44:24,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63884273] [2024-10-24 19:44:24,450 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 19:44:24,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:44:24,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:44:24,451 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:44:24,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-24 19:44:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:44:24,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 1725 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-24 19:44:24,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:44:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 50838 backedges. 28466 proven. 1971 refuted. 0 times theorem prover too weak. 20401 trivial. 0 not checked. [2024-10-24 19:44:25,977 INFO L311 TraceCheckSpWp]: Computing backward predicates...