./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a95a21aef2f50b6142b75e9167422e223cf73e944019da3877f24b8f537b25b5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 21:00:18,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 21:00:18,276 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 21:00:18,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 21:00:18,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 21:00:18,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 21:00:18,315 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 21:00:18,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 21:00:18,316 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 21:00:18,319 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 21:00:18,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 21:00:18,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 21:00:18,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 21:00:18,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 21:00:18,321 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 21:00:18,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 21:00:18,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 21:00:18,321 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 21:00:18,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 21:00:18,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 21:00:18,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 21:00:18,324 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 21:00:18,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 21:00:18,324 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 21:00:18,324 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 21:00:18,325 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 21:00:18,325 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 21:00:18,325 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 21:00:18,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 21:00:18,326 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 21:00:18,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 21:00:18,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 21:00:18,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 21:00:18,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 21:00:18,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 21:00:18,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 21:00:18,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 21:00:18,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 21:00:18,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 21:00:18,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 21:00:18,329 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 21:00:18,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 21:00:18,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 21:00:18,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 21:00:18,330 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a95a21aef2f50b6142b75e9167422e223cf73e944019da3877f24b8f537b25b5 [2024-10-14 21:00:18,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 21:00:18,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 21:00:18,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 21:00:18,618 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 21:00:18,618 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 21:00:18,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c [2024-10-14 21:00:20,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 21:00:20,245 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 21:00:20,246 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound20.c [2024-10-14 21:00:20,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a917e9c3/509578a4e416472ea8fefb03f66797f2/FLAG425407137 [2024-10-14 21:00:20,270 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a917e9c3/509578a4e416472ea8fefb03f66797f2 [2024-10-14 21:00:20,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 21:00:20,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 21:00:20,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 21:00:20,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 21:00:20,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 21:00:20,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c061e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20, skipping insertion in model container [2024-10-14 21:00:20,286 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 21:00:20,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 21:00:20,503 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 21:00:20,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 21:00:20,535 INFO L204 MainTranslator]: Completed translation [2024-10-14 21:00:20,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20 WrapperNode [2024-10-14 21:00:20,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 21:00:20,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 21:00:20,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 21:00:20,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 21:00:20,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,566 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2024-10-14 21:00:20,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 21:00:20,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 21:00:20,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 21:00:20,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 21:00:20,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,579 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,590 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 21:00:20,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 21:00:20,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 21:00:20,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 21:00:20,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 21:00:20,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (1/1) ... [2024-10-14 21:00:20,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 21:00:20,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:20,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 21:00:20,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 21:00:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 21:00:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 21:00:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 21:00:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 21:00:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 21:00:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 21:00:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 21:00:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 21:00:20,777 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 21:00:20,781 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 21:00:21,042 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-10-14 21:00:21,042 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 21:00:21,071 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 21:00:21,072 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 21:00:21,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:00:21 BoogieIcfgContainer [2024-10-14 21:00:21,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 21:00:21,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 21:00:21,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 21:00:21,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 21:00:21,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:00:20" (1/3) ... [2024-10-14 21:00:21,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4f1b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:00:21, skipping insertion in model container [2024-10-14 21:00:21,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:00:20" (2/3) ... [2024-10-14 21:00:21,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4f1b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:00:21, skipping insertion in model container [2024-10-14 21:00:21,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:00:21" (3/3) ... [2024-10-14 21:00:21,080 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound20.c [2024-10-14 21:00:21,095 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 21:00:21,095 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-14 21:00:21,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 21:00:21,181 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;@68be75ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 21:00:21,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-10-14 21:00:21,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 45 states have internal predecessors, (51), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:00:21,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 21:00:21,193 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:21,194 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:21,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:21,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:21,201 INFO L85 PathProgramCache]: Analyzing trace with hash -783542553, now seen corresponding path program 1 times [2024-10-14 21:00:21,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:21,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722768734] [2024-10-14 21:00:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:21,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:21,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:21,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:21,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:21,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:21,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722768734] [2024-10-14 21:00:21,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722768734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:21,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:21,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 21:00:21,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582539621] [2024-10-14 21:00:21,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:21,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 21:00:21,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 21:00:21,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 21:00:21,401 INFO L87 Difference]: Start difference. First operand has 53 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 45 states have internal predecessors, (51), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 21:00:21,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:21,429 INFO L93 Difference]: Finished difference Result 104 states and 124 transitions. [2024-10-14 21:00:21,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 21:00:21,433 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-10-14 21:00:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:21,441 INFO L225 Difference]: With dead ends: 104 [2024-10-14 21:00:21,441 INFO L226 Difference]: Without dead ends: 50 [2024-10-14 21:00:21,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 21:00:21,449 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:21,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-14 21:00:21,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-10-14 21:00:21,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 43 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:21,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2024-10-14 21:00:21,492 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 20 [2024-10-14 21:00:21,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:21,493 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2024-10-14 21:00:21,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 21:00:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2024-10-14 21:00:21,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 21:00:21,495 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:21,496 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:21,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 21:00:21,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:21,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:21,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1613567575, now seen corresponding path program 1 times [2024-10-14 21:00:21,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:21,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107278806] [2024-10-14 21:00:21,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:21,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:00:21,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033056426] [2024-10-14 21:00:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:21,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:21,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:21,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:21,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 21:00:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:21,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 21:00:21,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:21,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 21:00:21,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:21,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:21,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107278806] [2024-10-14 21:00:21,987 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:00:21,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033056426] [2024-10-14 21:00:21,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033056426] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:21,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:00:21,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-14 21:00:21,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435535629] [2024-10-14 21:00:21,989 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:21,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 21:00:21,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:21,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 21:00:21,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-14 21:00:21,991 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 21:00:22,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:22,234 INFO L93 Difference]: Finished difference Result 76 states and 91 transitions. [2024-10-14 21:00:22,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 21:00:22,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-10-14 21:00:22,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:22,237 INFO L225 Difference]: With dead ends: 76 [2024-10-14 21:00:22,239 INFO L226 Difference]: Without dead ends: 67 [2024-10-14 21:00:22,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-14 21:00:22,240 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 74 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:22,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 72 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:00:22,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-10-14 21:00:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2024-10-14 21:00:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.5348837209302326) internal successors, (66), 56 states have internal predecessors, (66), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:00:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2024-10-14 21:00:22,253 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 20 [2024-10-14 21:00:22,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:22,255 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2024-10-14 21:00:22,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 21:00:22,255 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2024-10-14 21:00:22,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 21:00:22,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:22,256 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:22,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 21:00:22,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:22,461 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:22,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:22,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1519012777, now seen corresponding path program 1 times [2024-10-14 21:00:22,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:22,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309445710] [2024-10-14 21:00:22,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:22,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:00:22,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956879468] [2024-10-14 21:00:22,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:22,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:22,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:22,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:22,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 21:00:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:22,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 21:00:22,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:22,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:22,701 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 21:00:22,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:22,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309445710] [2024-10-14 21:00:22,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:00:22,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956879468] [2024-10-14 21:00:22,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956879468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:22,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:22,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 21:00:22,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42772669] [2024-10-14 21:00:22,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:22,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 21:00:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:22,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 21:00:22,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:00:22,706 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:00:22,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:22,897 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2024-10-14 21:00:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 21:00:22,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-10-14 21:00:22,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:22,899 INFO L225 Difference]: With dead ends: 68 [2024-10-14 21:00:22,899 INFO L226 Difference]: Without dead ends: 61 [2024-10-14 21:00:22,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-14 21:00:22,901 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 171 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:22,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 81 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:00:22,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-14 21:00:22,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-10-14 21:00:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 53 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 21:00:22,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2024-10-14 21:00:22,913 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 21 [2024-10-14 21:00:22,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:22,917 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2024-10-14 21:00:22,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 21:00:22,918 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2024-10-14 21:00:22,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-14 21:00:22,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:22,919 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:22,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 21:00:23,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-14 21:00:23,120 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:23,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:23,120 INFO L85 PathProgramCache]: Analyzing trace with hash -155244117, now seen corresponding path program 1 times [2024-10-14 21:00:23,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:23,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344429035] [2024-10-14 21:00:23,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:23,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:23,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:23,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:23,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:23,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:23,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344429035] [2024-10-14 21:00:23,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344429035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:23,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:23,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:00:23,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527834393] [2024-10-14 21:00:23,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:23,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:23,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:23,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:23,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:23,256 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 21:00:23,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:23,401 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2024-10-14 21:00:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:23,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2024-10-14 21:00:23,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:23,404 INFO L225 Difference]: With dead ends: 84 [2024-10-14 21:00:23,406 INFO L226 Difference]: Without dead ends: 83 [2024-10-14 21:00:23,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:23,408 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 27 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:23,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 71 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:23,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-14 21:00:23,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2024-10-14 21:00:23,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 66 states have internal predecessors, (80), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:00:23,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2024-10-14 21:00:23,422 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 22 [2024-10-14 21:00:23,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:23,422 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2024-10-14 21:00:23,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 21:00:23,423 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2024-10-14 21:00:23,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 21:00:23,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:23,423 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:23,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 21:00:23,424 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:23,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:23,425 INFO L85 PathProgramCache]: Analyzing trace with hash -517600277, now seen corresponding path program 1 times [2024-10-14 21:00:23,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:23,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657889033] [2024-10-14 21:00:23,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:23,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:23,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:23,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:23,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:23,630 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:23,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:23,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657889033] [2024-10-14 21:00:23,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657889033] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:23,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:23,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:00:23,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551586146] [2024-10-14 21:00:23,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:23,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:23,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:23,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:23,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:23,632 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 21:00:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:23,911 INFO L93 Difference]: Finished difference Result 84 states and 96 transitions. [2024-10-14 21:00:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:23,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-10-14 21:00:23,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:23,913 INFO L225 Difference]: With dead ends: 84 [2024-10-14 21:00:23,913 INFO L226 Difference]: Without dead ends: 83 [2024-10-14 21:00:23,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:23,914 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:23,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 91 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 21:00:23,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-14 21:00:23,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2024-10-14 21:00:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 66 states have internal predecessors, (78), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:00:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2024-10-14 21:00:23,923 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 23 [2024-10-14 21:00:23,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:23,923 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2024-10-14 21:00:23,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 21:00:23,924 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2024-10-14 21:00:23,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-14 21:00:23,925 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:23,925 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:23,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 21:00:23,925 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:23,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:23,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1420767521, now seen corresponding path program 1 times [2024-10-14 21:00:23,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:23,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872506918] [2024-10-14 21:00:23,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:23,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 21:00:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:24,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:24,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872506918] [2024-10-14 21:00:24,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872506918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:24,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:24,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:00:24,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078427783] [2024-10-14 21:00:24,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:24,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:24,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:24,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:24,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:24,060 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:24,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:24,121 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2024-10-14 21:00:24,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:24,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-10-14 21:00:24,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:24,122 INFO L225 Difference]: With dead ends: 76 [2024-10-14 21:00:24,122 INFO L226 Difference]: Without dead ends: 75 [2024-10-14 21:00:24,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:00:24,123 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 49 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:24,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 71 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:24,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-14 21:00:24,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-10-14 21:00:24,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.4) internal successors, (77), 66 states have internal predecessors, (77), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:00:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2024-10-14 21:00:24,152 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 33 [2024-10-14 21:00:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:24,153 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2024-10-14 21:00:24,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2024-10-14 21:00:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 21:00:24,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:24,154 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:24,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 21:00:24,154 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:24,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1094120262, now seen corresponding path program 1 times [2024-10-14 21:00:24,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:24,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725463433] [2024-10-14 21:00:24,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:24,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 21:00:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:24,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:24,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725463433] [2024-10-14 21:00:24,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725463433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:24,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:24,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:00:24,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130877907] [2024-10-14 21:00:24,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:24,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:24,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:24,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:24,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:24,274 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:24,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:24,328 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2024-10-14 21:00:24,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:24,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-10-14 21:00:24,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:24,330 INFO L225 Difference]: With dead ends: 76 [2024-10-14 21:00:24,330 INFO L226 Difference]: Without dead ends: 75 [2024-10-14 21:00:24,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:00:24,331 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 47 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:24,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 72 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:24,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-14 21:00:24,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-10-14 21:00:24,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 66 states have internal predecessors, (76), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:00:24,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2024-10-14 21:00:24,339 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 34 [2024-10-14 21:00:24,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:24,339 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2024-10-14 21:00:24,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:24,340 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2024-10-14 21:00:24,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 21:00:24,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:24,341 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:24,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 21:00:24,341 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:24,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:24,342 INFO L85 PathProgramCache]: Analyzing trace with hash -807839566, now seen corresponding path program 1 times [2024-10-14 21:00:24,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:24,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660268628] [2024-10-14 21:00:24,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:24,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 21:00:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:24,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:24,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660268628] [2024-10-14 21:00:24,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660268628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:24,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:24,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 21:00:24,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077244145] [2024-10-14 21:00:24,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:24,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 21:00:24,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:24,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 21:00:24,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:00:24,475 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 21:00:24,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:24,526 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2024-10-14 21:00:24,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:24,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 36 [2024-10-14 21:00:24,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:24,529 INFO L225 Difference]: With dead ends: 75 [2024-10-14 21:00:24,529 INFO L226 Difference]: Without dead ends: 73 [2024-10-14 21:00:24,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 21:00:24,530 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 38 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:24,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 63 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:24,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-14 21:00:24,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2024-10-14 21:00:24,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 63 states have internal predecessors, (72), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:00:24,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2024-10-14 21:00:24,546 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 36 [2024-10-14 21:00:24,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:24,546 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2024-10-14 21:00:24,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 21:00:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2024-10-14 21:00:24,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 21:00:24,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:24,547 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:24,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 21:00:24,548 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:24,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:24,550 INFO L85 PathProgramCache]: Analyzing trace with hash 429988456, now seen corresponding path program 1 times [2024-10-14 21:00:24,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:24,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232617868] [2024-10-14 21:00:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:24,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 21:00:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:24,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:24,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232617868] [2024-10-14 21:00:24,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232617868] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:24,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:24,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:00:24,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253487155] [2024-10-14 21:00:24,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:24,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:24,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:24,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:24,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:24,628 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:24,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:24,680 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2024-10-14 21:00:24,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:24,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-10-14 21:00:24,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:24,682 INFO L225 Difference]: With dead ends: 76 [2024-10-14 21:00:24,682 INFO L226 Difference]: Without dead ends: 75 [2024-10-14 21:00:24,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:00:24,683 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 48 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:24,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 67 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:24,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-14 21:00:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 74. [2024-10-14 21:00:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 65 states have internal predecessors, (74), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:00:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2024-10-14 21:00:24,690 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 37 [2024-10-14 21:00:24,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:24,690 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2024-10-14 21:00:24,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2024-10-14 21:00:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 21:00:24,691 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:24,691 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:24,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 21:00:24,692 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:24,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:24,692 INFO L85 PathProgramCache]: Analyzing trace with hash 444740330, now seen corresponding path program 1 times [2024-10-14 21:00:24,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:24,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297544236] [2024-10-14 21:00:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:24,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 21:00:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:24,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:24,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297544236] [2024-10-14 21:00:24,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297544236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:24,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:24,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:00:24,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856561259] [2024-10-14 21:00:24,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:24,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:24,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:24,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:24,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:24,759 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:24,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:24,810 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2024-10-14 21:00:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:24,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-10-14 21:00:24,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:24,812 INFO L225 Difference]: With dead ends: 76 [2024-10-14 21:00:24,812 INFO L226 Difference]: Without dead ends: 75 [2024-10-14 21:00:24,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 21:00:24,813 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 46 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:24,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 68 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:24,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-14 21:00:24,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-10-14 21:00:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 66 states have internal predecessors, (75), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:00:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2024-10-14 21:00:24,825 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 38 [2024-10-14 21:00:24,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:24,825 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2024-10-14 21:00:24,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:24,826 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2024-10-14 21:00:24,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 21:00:24,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:24,827 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:24,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 21:00:24,827 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:24,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:24,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1055259124, now seen corresponding path program 1 times [2024-10-14 21:00:24,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:24,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064213849] [2024-10-14 21:00:24,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:24,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:00:24,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305157021] [2024-10-14 21:00:24,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:24,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:24,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:24,857 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:24,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 21:00:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:24,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 21:00:24,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 21:00:25,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:26,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:26,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064213849] [2024-10-14 21:00:26,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:00:26,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305157021] [2024-10-14 21:00:26,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305157021] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:26,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:00:26,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-14 21:00:26,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076500912] [2024-10-14 21:00:26,009 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:26,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 21:00:26,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:26,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 21:00:26,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 21:00:26,011 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 11 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:26,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:26,325 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2024-10-14 21:00:26,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 21:00:26,326 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 38 [2024-10-14 21:00:26,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:26,327 INFO L225 Difference]: With dead ends: 95 [2024-10-14 21:00:26,327 INFO L226 Difference]: Without dead ends: 91 [2024-10-14 21:00:26,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2024-10-14 21:00:26,328 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 58 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:26,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 104 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:00:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-14 21:00:26,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 70. [2024-10-14 21:00:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 61 states have internal predecessors, (67), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:00:26,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2024-10-14 21:00:26,335 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 38 [2024-10-14 21:00:26,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:26,335 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2024-10-14 21:00:26,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:26,336 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2024-10-14 21:00:26,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 21:00:26,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:26,336 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:26,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 21:00:26,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:26,537 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:26,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:26,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1646705474, now seen corresponding path program 1 times [2024-10-14 21:00:26,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:26,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456059563] [2024-10-14 21:00:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:26,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:00:26,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000166814] [2024-10-14 21:00:26,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:26,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:26,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:26,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:26,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 21:00:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:26,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 21:00:26,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 21:00:27,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:27,888 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:27,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:27,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456059563] [2024-10-14 21:00:27,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:00:27,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000166814] [2024-10-14 21:00:27,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000166814] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:27,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:00:27,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-10-14 21:00:27,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299248216] [2024-10-14 21:00:27,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:27,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 21:00:27,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:27,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 21:00:27,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-10-14 21:00:27,891 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:28,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:28,229 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2024-10-14 21:00:28,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:28,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-10-14 21:00:28,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:28,230 INFO L225 Difference]: With dead ends: 78 [2024-10-14 21:00:28,230 INFO L226 Difference]: Without dead ends: 77 [2024-10-14 21:00:28,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-10-14 21:00:28,231 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 34 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:28,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 53 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 21:00:28,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-14 21:00:28,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-14 21:00:28,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 68 states have internal predecessors, (74), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 21:00:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2024-10-14 21:00:28,238 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 39 [2024-10-14 21:00:28,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:28,239 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2024-10-14 21:00:28,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 21:00:28,240 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2024-10-14 21:00:28,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 21:00:28,240 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:28,240 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:28,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 21:00:28,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:28,445 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:28,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:28,445 INFO L85 PathProgramCache]: Analyzing trace with hash 220368964, now seen corresponding path program 1 times [2024-10-14 21:00:28,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:28,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427733595] [2024-10-14 21:00:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:28,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:00:28,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1879412265] [2024-10-14 21:00:28,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:28,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:28,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:28,462 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:28,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 21:00:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:28,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 21:00:28,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:29,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 21:00:30,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:30,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427733595] [2024-10-14 21:00:30,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:00:30,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879412265] [2024-10-14 21:00:30,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879412265] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:00:30,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 21:00:30,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-10-14 21:00:30,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364193089] [2024-10-14 21:00:30,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:30,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 21:00:30,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 21:00:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-10-14 21:00:30,757 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-14 21:00:37,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:37,033 INFO L93 Difference]: Finished difference Result 99 states and 115 transitions. [2024-10-14 21:00:37,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 21:00:37,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 43 [2024-10-14 21:00:37,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:37,034 INFO L225 Difference]: With dead ends: 99 [2024-10-14 21:00:37,034 INFO L226 Difference]: Without dead ends: 97 [2024-10-14 21:00:37,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=213, Invalid=543, Unknown=0, NotChecked=0, Total=756 [2024-10-14 21:00:37,035 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 72 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:37,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 178 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-14 21:00:37,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-14 21:00:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 85. [2024-10-14 21:00:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 71 states have (on average 1.1830985915492958) internal successors, (84), 75 states have internal predecessors, (84), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 21:00:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 98 transitions. [2024-10-14 21:00:37,043 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 98 transitions. Word has length 43 [2024-10-14 21:00:37,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:37,043 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 98 transitions. [2024-10-14 21:00:37,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-14 21:00:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 98 transitions. [2024-10-14 21:00:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 21:00:37,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:37,044 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:37,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 21:00:37,244 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,SelfDestructingSolverStorable12 [2024-10-14 21:00:37,245 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:37,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:37,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1758496656, now seen corresponding path program 1 times [2024-10-14 21:00:37,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:37,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596826419] [2024-10-14 21:00:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:37,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:37,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:37,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:37,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:37,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 21:00:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:37,394 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 21:00:37,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:37,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596826419] [2024-10-14 21:00:37,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596826419] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:37,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430618655] [2024-10-14 21:00:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:37,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:37,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:37,397 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:37,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 21:00:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:37,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 21:00:37,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 21:00:37,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 21:00:37,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430618655] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:00:37,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:00:37,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-10-14 21:00:37,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659948644] [2024-10-14 21:00:37,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:37,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 21:00:37,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:37,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 21:00:37,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-14 21:00:37,633 INFO L87 Difference]: Start difference. First operand 85 states and 98 transitions. Second operand has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-14 21:00:37,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:37,833 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2024-10-14 21:00:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 21:00:37,833 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 44 [2024-10-14 21:00:37,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:37,834 INFO L225 Difference]: With dead ends: 87 [2024-10-14 21:00:37,834 INFO L226 Difference]: Without dead ends: 85 [2024-10-14 21:00:37,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-14 21:00:37,834 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 82 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:37,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 89 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:37,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-14 21:00:37,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2024-10-14 21:00:37,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 73 states have internal predecessors, (81), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 21:00:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 95 transitions. [2024-10-14 21:00:37,840 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 95 transitions. Word has length 44 [2024-10-14 21:00:37,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:37,841 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 95 transitions. [2024-10-14 21:00:37,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-14 21:00:37,841 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 95 transitions. [2024-10-14 21:00:37,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 21:00:37,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:37,842 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:37,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 21:00:38,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:38,046 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:38,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:38,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1321178566, now seen corresponding path program 1 times [2024-10-14 21:00:38,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:38,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932223741] [2024-10-14 21:00:38,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:38,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:00:38,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064996103] [2024-10-14 21:00:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:38,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:38,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:38,068 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:38,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 21:00:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:38,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 21:00:38,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:38,512 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 21:00:38,512 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:48,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:48,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932223741] [2024-10-14 21:00:48,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:00:48,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064996103] [2024-10-14 21:00:48,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064996103] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:48,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 21:00:48,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-10-14 21:00:48,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655625855] [2024-10-14 21:00:48,958 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:48,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 21:00:48,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:48,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 21:00:48,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=360, Unknown=2, NotChecked=0, Total=462 [2024-10-14 21:00:48,959 INFO L87 Difference]: Start difference. First operand 83 states and 95 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:49,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:49,337 INFO L93 Difference]: Finished difference Result 101 states and 115 transitions. [2024-10-14 21:00:49,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 21:00:49,337 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2024-10-14 21:00:49,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:49,338 INFO L225 Difference]: With dead ends: 101 [2024-10-14 21:00:49,338 INFO L226 Difference]: Without dead ends: 99 [2024-10-14 21:00:49,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=221, Invalid=647, Unknown=2, NotChecked=0, Total=870 [2024-10-14 21:00:49,339 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 58 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:49,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 148 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 21:00:49,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-14 21:00:49,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-10-14 21:00:49,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 84 states have (on average 1.130952380952381) internal successors, (95), 86 states have internal predecessors, (95), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 21:00:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2024-10-14 21:00:49,352 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 45 [2024-10-14 21:00:49,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:49,353 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2024-10-14 21:00:49,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 21:00:49,353 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2024-10-14 21:00:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 21:00:49,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:49,354 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:49,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 21:00:49,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:49,554 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:49,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:49,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1930025903, now seen corresponding path program 1 times [2024-10-14 21:00:49,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:49,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75287672] [2024-10-14 21:00:49,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:49,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 21:00:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 21:00:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 21:00:49,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:49,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75287672] [2024-10-14 21:00:49,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75287672] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 21:00:49,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 21:00:49,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 21:00:49,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471677336] [2024-10-14 21:00:49,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 21:00:49,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 21:00:49,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:49,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 21:00:49,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:49,647 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-14 21:00:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:49,682 INFO L93 Difference]: Finished difference Result 101 states and 114 transitions. [2024-10-14 21:00:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 21:00:49,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 52 [2024-10-14 21:00:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:49,683 INFO L225 Difference]: With dead ends: 101 [2024-10-14 21:00:49,683 INFO L226 Difference]: Without dead ends: 100 [2024-10-14 21:00:49,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 21:00:49,684 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:49,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 77 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 21:00:49,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-10-14 21:00:49,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2024-10-14 21:00:49,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 84 states have (on average 1.130952380952381) internal successors, (95), 86 states have internal predecessors, (95), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 21:00:49,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2024-10-14 21:00:49,693 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 52 [2024-10-14 21:00:49,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:49,694 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2024-10-14 21:00:49,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-14 21:00:49,694 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2024-10-14 21:00:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 21:00:49,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:49,695 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:49,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 21:00:49,695 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:49,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:49,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1930015941, now seen corresponding path program 1 times [2024-10-14 21:00:49,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:49,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419551341] [2024-10-14 21:00:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:49,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 21:00:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 21:00:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 21:00:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 21:00:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 21:00:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 21:00:49,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:00:49,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419551341] [2024-10-14 21:00:49,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419551341] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 21:00:49,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313547619] [2024-10-14 21:00:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:49,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:49,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:49,770 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:49,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 21:00:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:49,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 21:00:49,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 21:00:49,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:00:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 21:00:49,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313547619] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:00:49,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 21:00:49,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-14 21:00:49,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571437560] [2024-10-14 21:00:49,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 21:00:49,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 21:00:49,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:00:49,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 21:00:49,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 21:00:49,928 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-10-14 21:00:50,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 21:00:50,033 INFO L93 Difference]: Finished difference Result 220 states and 261 transitions. [2024-10-14 21:00:50,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 21:00:50,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 52 [2024-10-14 21:00:50,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 21:00:50,034 INFO L225 Difference]: With dead ends: 220 [2024-10-14 21:00:50,034 INFO L226 Difference]: Without dead ends: 219 [2024-10-14 21:00:50,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-10-14 21:00:50,035 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 138 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 21:00:50,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 91 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 21:00:50,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-14 21:00:50,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 185. [2024-10-14 21:00:50,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 167 states have (on average 1.1197604790419162) internal successors, (187), 169 states have internal predecessors, (187), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 21:00:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 213 transitions. [2024-10-14 21:00:50,047 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 213 transitions. Word has length 52 [2024-10-14 21:00:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 21:00:50,047 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 213 transitions. [2024-10-14 21:00:50,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-10-14 21:00:50,047 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 213 transitions. [2024-10-14 21:00:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 21:00:50,048 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 21:00:50,048 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 21:00:50,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-14 21:00:50,248 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,SelfDestructingSolverStorable16 [2024-10-14 21:00:50,249 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-10-14 21:00:50,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 21:00:50,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1158020315, now seen corresponding path program 1 times [2024-10-14 21:00:50,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 21:00:50,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901230036] [2024-10-14 21:00:50,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:50,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 21:00:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 21:00:50,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286438356] [2024-10-14 21:00:50,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 21:00:50,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 21:00:50,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 21:00:50,271 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 21:00:50,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 21:00:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 21:00:50,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 21:00:50,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 21:00:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-14 21:00:51,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 21:01:19,623 WARN L286 SmtUtils]: Spent 6.83s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-14 21:01:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-14 21:01:28,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 21:01:28,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901230036] [2024-10-14 21:01:28,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 21:01:28,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286438356] [2024-10-14 21:01:28,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286438356] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 21:01:28,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 21:01:28,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-10-14 21:01:28,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216779950] [2024-10-14 21:01:28,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 21:01:28,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-14 21:01:28,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 21:01:28,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-14 21:01:28,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-10-14 21:01:28,478 INFO L87 Difference]: Start difference. First operand 185 states and 213 transitions. Second operand has 27 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-10-14 21:01:32,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:01:36,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 21:01:47,516 WARN L286 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 77 DAG size of output: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-14 21:01:57,742 WARN L286 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 75 DAG size of output: 67 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)