./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/ps6.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/ps6.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 7c085d451551fa473fcfd5042cc18772a43a12ab8154b83bfec7555781047d66 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:31:24,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:31:24,926 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:31:24,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:31:24,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:31:24,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:31:24,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:31:24,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:31:24,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:31:24,956 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:31:24,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:31:24,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:31:24,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:31:24,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:31:24,959 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:31:24,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:31:24,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:31:24,960 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:31:24,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:31:24,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:31:24,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:31:24,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:31:24,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:31:24,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:31:24,966 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:31:24,966 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:31:24,966 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:31:24,967 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:31:24,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:31:24,967 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:31:24,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:31:24,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:31:24,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:31:24,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:31:24,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:31:24,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:31:24,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:31:24,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:31:24,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:31:24,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:31:24,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:31:24,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:31:24,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:31:24,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:31:24,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c085d451551fa473fcfd5042cc18772a43a12ab8154b83bfec7555781047d66 [2024-10-14 20:31:25,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:31:25,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:31:25,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:31:25,280 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:31:25,281 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:31:25,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/ps6.c [2024-10-14 20:31:26,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:31:26,809 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:31:26,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/ps6.c [2024-10-14 20:31:26,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c344e5dd/c6c23b15ead84181b7a0241227d09c21/FLAG815f215be [2024-10-14 20:31:26,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c344e5dd/c6c23b15ead84181b7a0241227d09c21 [2024-10-14 20:31:26,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:31:26,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:31:26,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:31:26,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:31:26,848 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:31:26,849 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:31:26" (1/1) ... [2024-10-14 20:31:26,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c64506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:26, skipping insertion in model container [2024-10-14 20:31:26,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:31:26" (1/1) ... [2024-10-14 20:31:26,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:31:27,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:31:27,075 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:31:27,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:31:27,122 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:31:27,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27 WrapperNode [2024-10-14 20:31:27,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:31:27,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:31:27,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:31:27,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:31:27,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,180 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 148 [2024-10-14 20:31:27,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:31:27,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:31:27,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:31:27,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:31:27,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,222 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-10-14 20:31:27,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:31:27,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:31:27,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:31:27,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:31:27,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (1/1) ... [2024-10-14 20:31:27,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:31:27,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:31:27,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 20:31:27,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 20:31:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:31:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:31:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 20:31:27,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:31:27,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:31:27,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:31:27,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:31:27,383 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:31:27,385 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:31:27,965 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-10-14 20:31:27,966 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:31:28,003 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:31:28,005 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:31:28,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:31:28 BoogieIcfgContainer [2024-10-14 20:31:28,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:31:28,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:31:28,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:31:28,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:31:28,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:31:26" (1/3) ... [2024-10-14 20:31:28,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8f323f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:31:28, skipping insertion in model container [2024-10-14 20:31:28,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:31:27" (2/3) ... [2024-10-14 20:31:28,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8f323f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:31:28, skipping insertion in model container [2024-10-14 20:31:28,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:31:28" (3/3) ... [2024-10-14 20:31:28,014 INFO L112 eAbstractionObserver]: Analyzing ICFG ps6.c [2024-10-14 20:31:28,030 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:31:28,031 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 102 error locations. [2024-10-14 20:31:28,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:31:28,104 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;@1cfc5e38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:31:28,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2024-10-14 20:31:28,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 109 states have (on average 1.9724770642201834) internal successors, (215), 211 states have internal predecessors, (215), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:31:28,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 20:31:28,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:28,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 20:31:28,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:28,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:28,116 INFO L85 PathProgramCache]: Analyzing trace with hash 275196, now seen corresponding path program 1 times [2024-10-14 20:31:28,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:28,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065545900] [2024-10-14 20:31:28,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:28,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:28,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:28,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065545900] [2024-10-14 20:31:28,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065545900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:31:28,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:31:28,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:31:28,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349595786] [2024-10-14 20:31:28,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:31:28,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:31:28,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:28,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:31:28,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:31:28,282 INFO L87 Difference]: Start difference. First operand has 216 states, 109 states have (on average 1.9724770642201834) internal successors, (215), 211 states have internal predecessors, (215), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:31:28,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:31:28,323 INFO L93 Difference]: Finished difference Result 406 states and 444 transitions. [2024-10-14 20:31:28,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:31:28,325 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-14 20:31:28,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:31:28,332 INFO L225 Difference]: With dead ends: 406 [2024-10-14 20:31:28,332 INFO L226 Difference]: Without dead ends: 188 [2024-10-14 20:31:28,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:31:28,338 INFO L432 NwaCegarLoop]: 191 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, 191 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:31:28,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 191 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:31:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-10-14 20:31:28,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-10-14 20:31:28,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 108 states have (on average 1.712962962962963) internal successors, (185), 184 states have internal predecessors, (185), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:31:28,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 189 transitions. [2024-10-14 20:31:28,387 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 189 transitions. Word has length 3 [2024-10-14 20:31:28,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:31:28,388 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 189 transitions. [2024-10-14 20:31:28,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:31:28,388 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 189 transitions. [2024-10-14 20:31:28,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 20:31:28,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:28,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 20:31:28,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:31:28,389 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:28,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:28,390 INFO L85 PathProgramCache]: Analyzing trace with hash 271355, now seen corresponding path program 1 times [2024-10-14 20:31:28,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:28,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040565709] [2024-10-14 20:31:28,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:28,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:28,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:28,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:28,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040565709] [2024-10-14 20:31:28,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040565709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:31:28,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:31:28,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 20:31:28,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119429604] [2024-10-14 20:31:28,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:31:28,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:31:28,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:28,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:31:28,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:31:28,474 INFO L87 Difference]: Start difference. First operand 188 states and 189 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:31:28,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:31:28,929 INFO L93 Difference]: Finished difference Result 349 states and 356 transitions. [2024-10-14 20:31:28,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:31:28,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-14 20:31:28,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:31:28,932 INFO L225 Difference]: With dead ends: 349 [2024-10-14 20:31:28,932 INFO L226 Difference]: Without dead ends: 285 [2024-10-14 20:31:28,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:31:28,934 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 98 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:31:28,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 121 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:31:28,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-10-14 20:31:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 279. [2024-10-14 20:31:28,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 198 states have (on average 1.4393939393939394) internal successors, (285), 274 states have internal predecessors, (285), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:31:28,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 291 transitions. [2024-10-14 20:31:28,956 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 291 transitions. Word has length 3 [2024-10-14 20:31:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:31:28,957 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 291 transitions. [2024-10-14 20:31:28,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:31:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 291 transitions. [2024-10-14 20:31:28,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:31:28,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:28,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:31:28,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:31:28,961 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:28,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:28,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2082923839, now seen corresponding path program 1 times [2024-10-14 20:31:28,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:28,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038753256] [2024-10-14 20:31:28,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:28,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:29,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:29,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038753256] [2024-10-14 20:31:29,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038753256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:31:29,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:31:29,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 20:31:29,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971386708] [2024-10-14 20:31:29,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:31:29,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:31:29,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:29,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:31:29,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:31:29,127 INFO L87 Difference]: Start difference. First operand 279 states and 291 transitions. Second operand has 3 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:31:29,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:31:29,183 INFO L93 Difference]: Finished difference Result 303 states and 309 transitions. [2024-10-14 20:31:29,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:31:29,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-10-14 20:31:29,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:31:29,186 INFO L225 Difference]: With dead ends: 303 [2024-10-14 20:31:29,186 INFO L226 Difference]: Without dead ends: 296 [2024-10-14 20:31:29,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:31:29,188 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 68 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:31:29,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 343 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:31:29,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-10-14 20:31:29,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 278. [2024-10-14 20:31:29,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 197 states have (on average 1.4111675126903553) internal successors, (278), 273 states have internal predecessors, (278), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:31:29,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 284 transitions. [2024-10-14 20:31:29,208 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 284 transitions. Word has length 41 [2024-10-14 20:31:29,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:31:29,208 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 284 transitions. [2024-10-14 20:31:29,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:31:29,209 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 284 transitions. [2024-10-14 20:31:29,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 20:31:29,210 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:29,210 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:31:29,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 20:31:29,211 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:29,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:29,211 INFO L85 PathProgramCache]: Analyzing trace with hash -235045469, now seen corresponding path program 1 times [2024-10-14 20:31:29,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:29,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42955261] [2024-10-14 20:31:29,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:29,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:29,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:29,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:29,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42955261] [2024-10-14 20:31:29,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42955261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:31:29,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:31:29,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:31:29,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407215219] [2024-10-14 20:31:29,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:31:29,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:31:29,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:29,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:31:29,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:31:29,387 INFO L87 Difference]: Start difference. First operand 278 states and 284 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:31:29,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:31:29,826 INFO L93 Difference]: Finished difference Result 298 states and 302 transitions. [2024-10-14 20:31:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:31:29,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-10-14 20:31:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:31:29,828 INFO L225 Difference]: With dead ends: 298 [2024-10-14 20:31:29,828 INFO L226 Difference]: Without dead ends: 255 [2024-10-14 20:31:29,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:31:29,830 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 102 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:31:29,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 282 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:31:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-10-14 20:31:29,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2024-10-14 20:31:29,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 156 states have (on average 1.5064102564102564) internal successors, (235), 232 states have internal predecessors, (235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:31:29,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 241 transitions. [2024-10-14 20:31:29,854 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 241 transitions. Word has length 43 [2024-10-14 20:31:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:31:29,854 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 241 transitions. [2024-10-14 20:31:29,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:31:29,854 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 241 transitions. [2024-10-14 20:31:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 20:31:29,855 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:29,855 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:31:29,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:31:29,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:29,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:29,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1710793188, now seen corresponding path program 1 times [2024-10-14 20:31:29,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:29,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756215941] [2024-10-14 20:31:29,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:29,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:30,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 20:31:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:30,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:30,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:30,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756215941] [2024-10-14 20:31:30,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756215941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:31:30,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:31:30,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:31:30,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029068495] [2024-10-14 20:31:30,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:31:30,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:31:30,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:31:30,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:31:30,020 INFO L87 Difference]: Start difference. First operand 237 states and 241 transitions. Second operand has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:31:30,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:31:30,038 INFO L93 Difference]: Finished difference Result 239 states and 241 transitions. [2024-10-14 20:31:30,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:31:30,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2024-10-14 20:31:30,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:31:30,039 INFO L225 Difference]: With dead ends: 239 [2024-10-14 20:31:30,040 INFO L226 Difference]: Without dead ends: 237 [2024-10-14 20:31:30,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:31:30,041 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 1 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:31:30,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 367 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:31:30,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-10-14 20:31:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-10-14 20:31:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 156 states have (on average 1.4935897435897436) internal successors, (233), 232 states have internal predecessors, (233), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:31:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 239 transitions. [2024-10-14 20:31:30,054 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 239 transitions. Word has length 51 [2024-10-14 20:31:30,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:31:30,055 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 239 transitions. [2024-10-14 20:31:30,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:31:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 239 transitions. [2024-10-14 20:31:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-14 20:31:30,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:30,057 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:31:30,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 20:31:30,058 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:30,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:30,058 INFO L85 PathProgramCache]: Analyzing trace with hash -570182681, now seen corresponding path program 1 times [2024-10-14 20:31:30,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:30,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323595567] [2024-10-14 20:31:30,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:30,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:31:30,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013522596] [2024-10-14 20:31:30,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:30,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:31:30,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:31:30,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:31:30,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:31:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:30,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:31:30,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:31:30,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:30,255 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:31:30,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:30,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323595567] [2024-10-14 20:31:30,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:31:30,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013522596] [2024-10-14 20:31:30,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013522596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:31:30,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:31:30,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:31:30,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339603020] [2024-10-14 20:31:30,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:31:30,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:31:30,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:30,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:31:30,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:31:30,261 INFO L87 Difference]: Start difference. First operand 237 states and 239 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:31:30,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:31:30,696 INFO L93 Difference]: Finished difference Result 412 states and 424 transitions. [2024-10-14 20:31:30,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:31:30,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2024-10-14 20:31:30,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:31:30,699 INFO L225 Difference]: With dead ends: 412 [2024-10-14 20:31:30,699 INFO L226 Difference]: Without dead ends: 347 [2024-10-14 20:31:30,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:31:30,700 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 108 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:31:30,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 136 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:31:30,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-10-14 20:31:30,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 341. [2024-10-14 20:31:30,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 258 states have (on average 1.3527131782945736) internal successors, (349), 334 states have internal predecessors, (349), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:31:30,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 359 transitions. [2024-10-14 20:31:30,710 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 359 transitions. Word has length 56 [2024-10-14 20:31:30,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:31:30,711 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 359 transitions. [2024-10-14 20:31:30,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:31:30,711 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 359 transitions. [2024-10-14 20:31:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 20:31:30,715 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:30,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:31:30,732 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 20:31:30,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-14 20:31:30,916 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:30,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:30,916 INFO L85 PathProgramCache]: Analyzing trace with hash 283574576, now seen corresponding path program 1 times [2024-10-14 20:31:30,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:30,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63296894] [2024-10-14 20:31:30,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:30,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:30,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 20:31:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:30,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:30,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:30,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63296894] [2024-10-14 20:31:30,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63296894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:31:30,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:31:30,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:31:30,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319247231] [2024-10-14 20:31:30,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:31:30,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:31:30,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:30,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:31:30,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:31:30,998 INFO L87 Difference]: Start difference. First operand 341 states and 359 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:31:31,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:31:31,536 INFO L93 Difference]: Finished difference Result 342 states and 359 transitions. [2024-10-14 20:31:31,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:31:31,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2024-10-14 20:31:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:31:31,539 INFO L225 Difference]: With dead ends: 342 [2024-10-14 20:31:31,539 INFO L226 Difference]: Without dead ends: 341 [2024-10-14 20:31:31,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:31:31,540 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 54 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:31:31,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 315 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:31:31,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-10-14 20:31:31,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-10-14 20:31:31,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 258 states have (on average 1.3488372093023255) internal successors, (348), 334 states have internal predecessors, (348), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:31:31,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 358 transitions. [2024-10-14 20:31:31,557 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 358 transitions. Word has length 63 [2024-10-14 20:31:31,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:31:31,559 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 358 transitions. [2024-10-14 20:31:31,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:31:31,559 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 358 transitions. [2024-10-14 20:31:31,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 20:31:31,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:31,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:31:31,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 20:31:31,560 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:31,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:31,561 INFO L85 PathProgramCache]: Analyzing trace with hash 200877423, now seen corresponding path program 1 times [2024-10-14 20:31:31,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:31,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012095011] [2024-10-14 20:31:31,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:31,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:31,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 20:31:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:31,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:31,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:31,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012095011] [2024-10-14 20:31:31,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012095011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:31:31,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:31:31,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:31:31,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260390826] [2024-10-14 20:31:31,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:31:31,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:31:31,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:31,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:31:31,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:31:31,701 INFO L87 Difference]: Start difference. First operand 341 states and 358 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:31:31,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:31:31,966 INFO L93 Difference]: Finished difference Result 342 states and 358 transitions. [2024-10-14 20:31:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:31:31,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-10-14 20:31:31,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:31:31,968 INFO L225 Difference]: With dead ends: 342 [2024-10-14 20:31:31,968 INFO L226 Difference]: Without dead ends: 341 [2024-10-14 20:31:31,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:31:31,969 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 47 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:31:31,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 324 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:31:31,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-10-14 20:31:31,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-10-14 20:31:31,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 258 states have (on average 1.3449612403100775) internal successors, (347), 334 states have internal predecessors, (347), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:31:31,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 357 transitions. [2024-10-14 20:31:31,978 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 357 transitions. Word has length 64 [2024-10-14 20:31:31,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:31:31,979 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 357 transitions. [2024-10-14 20:31:31,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:31:31,979 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 357 transitions. [2024-10-14 20:31:31,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 20:31:31,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:31,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:31:31,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 20:31:31,981 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:31,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:31,982 INFO L85 PathProgramCache]: Analyzing trace with hash 648851735, now seen corresponding path program 1 times [2024-10-14 20:31:31,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:31,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635154580] [2024-10-14 20:31:31,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:31,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:31:32,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709924139] [2024-10-14 20:31:32,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:32,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:31:32,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:31:32,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:31:32,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:31:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:32,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:31:32,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:31:32,377 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:32,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:31:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:32,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:32,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635154580] [2024-10-14 20:31:32,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:31:32,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709924139] [2024-10-14 20:31:32,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709924139] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:31:32,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:31:32,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-14 20:31:32,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746039851] [2024-10-14 20:31:32,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:31:32,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:31:32,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:32,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:31:32,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:31:32,661 INFO L87 Difference]: Start difference. First operand 341 states and 357 transitions. Second operand has 8 states, 7 states have (on average 28.714285714285715) internal successors, (201), 8 states have internal predecessors, (201), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:31:33,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:31:33,685 INFO L93 Difference]: Finished difference Result 365 states and 375 transitions. [2024-10-14 20:31:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:31:33,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 28.714285714285715) internal successors, (201), 8 states have internal predecessors, (201), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 104 [2024-10-14 20:31:33,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:31:33,687 INFO L225 Difference]: With dead ends: 365 [2024-10-14 20:31:33,688 INFO L226 Difference]: Without dead ends: 356 [2024-10-14 20:31:33,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:31:33,689 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 342 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:31:33,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 143 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 20:31:33,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-14 20:31:33,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 345. [2024-10-14 20:31:33,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 265 states have (on average 1.3132075471698113) internal successors, (348), 338 states have internal predecessors, (348), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:31:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 358 transitions. [2024-10-14 20:31:33,700 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 358 transitions. Word has length 104 [2024-10-14 20:31:33,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:31:33,701 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 358 transitions. [2024-10-14 20:31:33,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 28.714285714285715) internal successors, (201), 8 states have internal predecessors, (201), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:31:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 358 transitions. [2024-10-14 20:31:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 20:31:33,708 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:31:33,708 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:31:33,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:31:33,909 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,SelfDestructingSolverStorable8 [2024-10-14 20:31:33,910 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:31:33,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:31:33,910 INFO L85 PathProgramCache]: Analyzing trace with hash 776263289, now seen corresponding path program 1 times [2024-10-14 20:31:33,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:31:33,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421727722] [2024-10-14 20:31:33,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:33,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:31:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:31:33,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1471972265] [2024-10-14 20:31:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:31:33,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:31:33,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:31:33,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:31:33,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:31:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:31:34,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:31:34,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:31:34,380 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:31:34,380 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:31:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-14 20:31:34,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:31:34,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421727722] [2024-10-14 20:31:34,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:31:34,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471972265] [2024-10-14 20:31:34,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471972265] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:31:34,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:31:34,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-14 20:31:34,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197052005] [2024-10-14 20:31:34,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:31:34,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:31:34,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:31:34,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:31:34,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:31:34,748 INFO L87 Difference]: Start difference. First operand 345 states and 358 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:31:46,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:31:48,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:00,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:03,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:32:03,089 INFO L93 Difference]: Finished difference Result 345 states and 358 transitions. [2024-10-14 20:32:03,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:32:03,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2024-10-14 20:32:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:32:03,091 INFO L225 Difference]: With dead ends: 345 [2024-10-14 20:32:03,091 INFO L226 Difference]: Without dead ends: 343 [2024-10-14 20:32:03,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:32:03,092 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 95 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:32:03,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 31 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 28.3s Time] [2024-10-14 20:32:03,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-10-14 20:32:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2024-10-14 20:32:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 265 states have (on average 1.2981132075471697) internal successors, (344), 336 states have internal predecessors, (344), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:32:03,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 354 transitions. [2024-10-14 20:32:03,105 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 354 transitions. Word has length 106 [2024-10-14 20:32:03,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:32:03,105 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 354 transitions. [2024-10-14 20:32:03,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 20:32:03,105 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 354 transitions. [2024-10-14 20:32:03,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 20:32:03,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:32:03,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:32:03,124 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 20:32:03,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:03,307 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:32:03,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:32:03,308 INFO L85 PathProgramCache]: Analyzing trace with hash -493042502, now seen corresponding path program 1 times [2024-10-14 20:32:03,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:32:03,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197109602] [2024-10-14 20:32:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:03,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:32:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:03,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 20:32:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:03,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 20:32:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:32:03,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:32:03,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197109602] [2024-10-14 20:32:03,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197109602] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:32:03,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032875335] [2024-10-14 20:32:03,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:03,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:03,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:32:03,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:32:03,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:32:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:03,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:32:03,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:32:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:32:03,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:32:03,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032875335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:32:03,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:32:03,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-14 20:32:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904962771] [2024-10-14 20:32:03,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:32:03,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:32:03,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:32:03,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:32:03,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:32:03,641 INFO L87 Difference]: Start difference. First operand 343 states and 354 transitions. Second operand has 4 states, 3 states have (on average 35.666666666666664) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:32:03,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:32:03,667 INFO L93 Difference]: Finished difference Result 343 states and 354 transitions. [2024-10-14 20:32:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:32:03,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 35.666666666666664) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 114 [2024-10-14 20:32:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:32:03,669 INFO L225 Difference]: With dead ends: 343 [2024-10-14 20:32:03,669 INFO L226 Difference]: Without dead ends: 342 [2024-10-14 20:32:03,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:32:03,670 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 77 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:32:03,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 349 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:32:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-10-14 20:32:03,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2024-10-14 20:32:03,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 265 states have (on average 1.290566037735849) internal successors, (342), 335 states have internal predecessors, (342), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:32:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 352 transitions. [2024-10-14 20:32:03,680 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 352 transitions. Word has length 114 [2024-10-14 20:32:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:32:03,681 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 352 transitions. [2024-10-14 20:32:03,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 35.666666666666664) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:32:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 352 transitions. [2024-10-14 20:32:03,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 20:32:03,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:32:03,683 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:32:03,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:32:03,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:03,884 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:32:03,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:32:03,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1895551757, now seen corresponding path program 1 times [2024-10-14 20:32:03,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:32:03,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206790148] [2024-10-14 20:32:03,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:03,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:32:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:03,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 20:32:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:03,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 20:32:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:32:03,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:32:03,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206790148] [2024-10-14 20:32:03,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206790148] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:32:03,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338446955] [2024-10-14 20:32:03,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:03,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:03,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:32:03,984 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:32:03,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:32:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:04,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:32:04,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:32:04,177 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:32:04,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:32:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:32:04,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338446955] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:32:04,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:32:04,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-14 20:32:04,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368251467] [2024-10-14 20:32:04,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:32:04,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:32:04,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:32:04,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:32:04,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:32:04,324 INFO L87 Difference]: Start difference. First operand 342 states and 352 transitions. Second operand has 7 states, 6 states have (on average 43.333333333333336) internal successors, (260), 7 states have internal predecessors, (260), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:32:04,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:32:04,377 INFO L93 Difference]: Finished difference Result 524 states and 536 transitions. [2024-10-14 20:32:04,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:32:04,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 43.333333333333336) internal successors, (260), 7 states have internal predecessors, (260), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 115 [2024-10-14 20:32:04,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:32:04,380 INFO L225 Difference]: With dead ends: 524 [2024-10-14 20:32:04,380 INFO L226 Difference]: Without dead ends: 523 [2024-10-14 20:32:04,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:32:04,381 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 84 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:32:04,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 796 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:32:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-10-14 20:32:04,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 451. [2024-10-14 20:32:04,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 372 states have (on average 1.3951612903225807) internal successors, (519), 442 states have internal predecessors, (519), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 20:32:04,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 533 transitions. [2024-10-14 20:32:04,398 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 533 transitions. Word has length 115 [2024-10-14 20:32:04,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:32:04,399 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 533 transitions. [2024-10-14 20:32:04,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 43.333333333333336) internal successors, (260), 7 states have internal predecessors, (260), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:32:04,399 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 533 transitions. [2024-10-14 20:32:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-14 20:32:04,401 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:32:04,401 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:32:04,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 20:32:04,602 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,SelfDestructingSolverStorable11 [2024-10-14 20:32:04,602 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:32:04,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:32:04,603 INFO L85 PathProgramCache]: Analyzing trace with hash 433186513, now seen corresponding path program 1 times [2024-10-14 20:32:04,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:32:04,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368690798] [2024-10-14 20:32:04,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:04,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:32:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:32:04,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895744557] [2024-10-14 20:32:04,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:04,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:04,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:32:04,631 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:32:04,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:32:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:04,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:32:04,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:32:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:32:04,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:32:05,022 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:32:05,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:32:05,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368690798] [2024-10-14 20:32:05,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:32:05,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895744557] [2024-10-14 20:32:05,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895744557] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:32:05,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:32:05,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-14 20:32:05,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000666431] [2024-10-14 20:32:05,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:32:05,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:32:05,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:32:05,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:32:05,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:32:05,025 INFO L87 Difference]: Start difference. First operand 451 states and 533 transitions. Second operand has 8 states, 7 states have (on average 31.571428571428573) internal successors, (221), 8 states have internal predecessors, (221), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:32:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:32:05,671 INFO L93 Difference]: Finished difference Result 543 states and 612 transitions. [2024-10-14 20:32:05,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:32:05,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 31.571428571428573) internal successors, (221), 8 states have internal predecessors, (221), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 119 [2024-10-14 20:32:05,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:32:05,674 INFO L225 Difference]: With dead ends: 543 [2024-10-14 20:32:05,674 INFO L226 Difference]: Without dead ends: 478 [2024-10-14 20:32:05,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:32:05,675 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 456 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:32:05,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 121 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:32:05,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-10-14 20:32:05,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 465. [2024-10-14 20:32:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 405 states have (on average 1.2148148148148148) internal successors, (492), 457 states have internal predecessors, (492), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:32:05,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 504 transitions. [2024-10-14 20:32:05,690 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 504 transitions. Word has length 119 [2024-10-14 20:32:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:32:05,690 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 504 transitions. [2024-10-14 20:32:05,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 31.571428571428573) internal successors, (221), 8 states have internal predecessors, (221), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:32:05,691 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 504 transitions. [2024-10-14 20:32:05,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 20:32:05,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:32:05,692 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-10-14 20:32:05,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 20:32:05,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:05,897 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:32:05,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:32:05,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2114113113, now seen corresponding path program 1 times [2024-10-14 20:32:05,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:32:05,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675779295] [2024-10-14 20:32:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:05,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:32:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:32:05,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530884521] [2024-10-14 20:32:05,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:05,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:05,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:32:05,923 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:32:05,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:32:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:05,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 20:32:05,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:32:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 59 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:32:06,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:32:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 59 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:32:08,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:32:08,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675779295] [2024-10-14 20:32:08,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:32:08,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530884521] [2024-10-14 20:32:08,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530884521] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:32:08,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:32:08,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2024-10-14 20:32:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747857954] [2024-10-14 20:32:08,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:32:08,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 20:32:08,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:32:08,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 20:32:08,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:32:08,031 INFO L87 Difference]: Start difference. First operand 465 states and 504 transitions. Second operand has 14 states, 13 states have (on average 18.615384615384617) internal successors, (242), 14 states have internal predecessors, (242), 4 states have call successors, (4), 1 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 20:32:10,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:15,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:17,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:22,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:26,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:28,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:32,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:39,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:41,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:45,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:49,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:51,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-14 20:32:52,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:32:52,481 INFO L93 Difference]: Finished difference Result 472 states and 511 transitions. [2024-10-14 20:32:52,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 20:32:52,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.615384615384617) internal successors, (242), 14 states have internal predecessors, (242), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 127 [2024-10-14 20:32:52,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:32:52,483 INFO L225 Difference]: With dead ends: 472 [2024-10-14 20:32:52,483 INFO L226 Difference]: Without dead ends: 471 [2024-10-14 20:32:52,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-10-14 20:32:52,484 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 433 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 42 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:32:52,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 76 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1215 Invalid, 6 Unknown, 0 Unchecked, 44.3s Time] [2024-10-14 20:32:52,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-10-14 20:32:52,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 464. [2024-10-14 20:32:52,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 405 states have (on average 1.2074074074074075) internal successors, (489), 456 states have internal predecessors, (489), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:32:52,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 501 transitions. [2024-10-14 20:32:52,502 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 501 transitions. Word has length 127 [2024-10-14 20:32:52,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:32:52,502 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 501 transitions. [2024-10-14 20:32:52,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.615384615384617) internal successors, (242), 14 states have internal predecessors, (242), 4 states have call successors, (4), 1 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 20:32:52,503 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 501 transitions. [2024-10-14 20:32:52,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 20:32:52,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:32:52,504 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:32:52,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:32:52,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:52,705 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr98ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:32:52,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:32:52,705 INFO L85 PathProgramCache]: Analyzing trace with hash 46491468, now seen corresponding path program 1 times [2024-10-14 20:32:52,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:32:52,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97501890] [2024-10-14 20:32:52,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:52,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:32:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:32:52,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615685745] [2024-10-14 20:32:52,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:52,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:52,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:32:52,733 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:32:52,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:32:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:52,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:32:52,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:32:53,188 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:32:53,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:32:53,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:32:53,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97501890] [2024-10-14 20:32:53,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:32:53,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615685745] [2024-10-14 20:32:53,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615685745] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:32:53,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:32:53,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-14 20:32:53,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622627323] [2024-10-14 20:32:53,520 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:32:53,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:32:53,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:32:53,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:32:53,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:32:53,521 INFO L87 Difference]: Start difference. First operand 464 states and 501 transitions. Second operand has 5 states, 4 states have (on average 37.25) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:32:53,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:32:53,820 INFO L93 Difference]: Finished difference Result 464 states and 501 transitions. [2024-10-14 20:32:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:32:53,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 37.25) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 161 [2024-10-14 20:32:53,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:32:53,822 INFO L225 Difference]: With dead ends: 464 [2024-10-14 20:32:53,822 INFO L226 Difference]: Without dead ends: 451 [2024-10-14 20:32:53,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:32:53,824 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 26 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:32:53,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 37 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:32:53,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-10-14 20:32:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 451. [2024-10-14 20:32:53,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 405 states have (on average 1.1580246913580248) internal successors, (469), 443 states have internal predecessors, (469), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:32:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 481 transitions. [2024-10-14 20:32:53,843 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 481 transitions. Word has length 161 [2024-10-14 20:32:53,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:32:53,844 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 481 transitions. [2024-10-14 20:32:53,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 37.25) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:32:53,844 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 481 transitions. [2024-10-14 20:32:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 20:32:53,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:32:53,845 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:32:53,865 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 20:32:54,049 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,SelfDestructingSolverStorable14 [2024-10-14 20:32:54,050 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:32:54,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:32:54,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1441235759, now seen corresponding path program 1 times [2024-10-14 20:32:54,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:32:54,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594930105] [2024-10-14 20:32:54,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:54,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:32:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:32:54,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811994815] [2024-10-14 20:32:54,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:54,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:54,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:32:54,072 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:32:54,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:32:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:54,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 20:32:54,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:32:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:32:54,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:32:55,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:32:55,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594930105] [2024-10-14 20:32:55,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:32:55,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811994815] [2024-10-14 20:32:55,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811994815] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:32:55,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:32:55,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-14 20:32:55,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026703274] [2024-10-14 20:32:55,002 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:32:55,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:32:55,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:32:55,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:32:55,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:32:55,003 INFO L87 Difference]: Start difference. First operand 451 states and 481 transitions. Second operand has 6 states, 5 states have (on average 30.0) internal successors, (150), 6 states have internal predecessors, (150), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:32:55,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:32:55,399 INFO L93 Difference]: Finished difference Result 455 states and 485 transitions. [2024-10-14 20:32:55,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:32:55,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 30.0) internal successors, (150), 6 states have internal predecessors, (150), 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 162 [2024-10-14 20:32:55,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:32:55,401 INFO L225 Difference]: With dead ends: 455 [2024-10-14 20:32:55,401 INFO L226 Difference]: Without dead ends: 409 [2024-10-14 20:32:55,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:32:55,402 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:32:55,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 113 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:32:55,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-14 20:32:55,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-10-14 20:32:55,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 363 states have (on average 1.1735537190082646) internal successors, (426), 401 states have internal predecessors, (426), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:32:55,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 438 transitions. [2024-10-14 20:32:55,420 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 438 transitions. Word has length 162 [2024-10-14 20:32:55,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:32:55,420 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 438 transitions. [2024-10-14 20:32:55,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 30.0) internal successors, (150), 6 states have internal predecessors, (150), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:32:55,420 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 438 transitions. [2024-10-14 20:32:55,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-14 20:32:55,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:32:55,422 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-10-14 20:32:55,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-14 20:32:55,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 20:32:55,622 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:32:55,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:32:55,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2007017320, now seen corresponding path program 1 times [2024-10-14 20:32:55,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:32:55,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808038362] [2024-10-14 20:32:55,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:55,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:32:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:32:55,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913852329] [2024-10-14 20:32:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:55,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:55,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:32:55,653 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:32:55,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:32:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:55,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 20:32:55,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:32:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:32:56,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:32:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:32:56,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:32:56,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808038362] [2024-10-14 20:32:56,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:32:56,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913852329] [2024-10-14 20:32:56,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913852329] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:32:56,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:32:56,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-14 20:32:56,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793223160] [2024-10-14 20:32:56,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:32:56,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:32:56,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:32:56,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:32:56,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:32:56,445 INFO L87 Difference]: Start difference. First operand 409 states and 438 transitions. Second operand has 12 states, 11 states have (on average 29.0) internal successors, (319), 12 states have internal predecessors, (319), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:32:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:32:57,786 INFO L93 Difference]: Finished difference Result 535 states and 584 transitions. [2024-10-14 20:32:57,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:32:57,787 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 29.0) internal successors, (319), 12 states have internal predecessors, (319), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 168 [2024-10-14 20:32:57,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:32:57,788 INFO L225 Difference]: With dead ends: 535 [2024-10-14 20:32:57,788 INFO L226 Difference]: Without dead ends: 529 [2024-10-14 20:32:57,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:32:57,789 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 502 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:32:57,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 180 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 20:32:57,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-10-14 20:32:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 459. [2024-10-14 20:32:57,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 416 states have (on average 1.1730769230769231) internal successors, (488), 451 states have internal predecessors, (488), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:32:57,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 500 transitions. [2024-10-14 20:32:57,810 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 500 transitions. Word has length 168 [2024-10-14 20:32:57,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:32:57,811 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 500 transitions. [2024-10-14 20:32:57,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 29.0) internal successors, (319), 12 states have internal predecessors, (319), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:32:57,811 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 500 transitions. [2024-10-14 20:32:57,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-10-14 20:32:57,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:32:57,813 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1] [2024-10-14 20:32:57,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 20:32:58,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-14 20:32:58,014 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:32:58,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:32:58,014 INFO L85 PathProgramCache]: Analyzing trace with hash -277252245, now seen corresponding path program 1 times [2024-10-14 20:32:58,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:32:58,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446827535] [2024-10-14 20:32:58,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:58,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:32:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:32:58,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706634765] [2024-10-14 20:32:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:58,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:58,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:32:58,042 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:32:58,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:32:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:32:58,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:32:58,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:32:58,285 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:32:58,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:32:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:32:58,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:32:58,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446827535] [2024-10-14 20:32:58,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:32:58,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706634765] [2024-10-14 20:32:58,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706634765] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:32:58,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:32:58,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-10-14 20:32:58,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724180393] [2024-10-14 20:32:58,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:32:58,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 20:32:58,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:32:58,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 20:32:58,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:32:58,623 INFO L87 Difference]: Start difference. First operand 459 states and 500 transitions. Second operand has 10 states, 9 states have (on average 38.333333333333336) internal successors, (345), 10 states have internal predecessors, (345), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:32:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:32:59,306 INFO L93 Difference]: Finished difference Result 530 states and 570 transitions. [2024-10-14 20:32:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:32:59,307 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 38.333333333333336) internal successors, (345), 10 states have internal predecessors, (345), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 186 [2024-10-14 20:32:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:32:59,309 INFO L225 Difference]: With dead ends: 530 [2024-10-14 20:32:59,309 INFO L226 Difference]: Without dead ends: 498 [2024-10-14 20:32:59,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:32:59,310 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 658 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:32:59,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 181 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:32:59,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-10-14 20:32:59,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 445. [2024-10-14 20:32:59,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 416 states have (on average 1.0817307692307692) internal successors, (450), 437 states have internal predecessors, (450), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:32:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 462 transitions. [2024-10-14 20:32:59,329 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 462 transitions. Word has length 186 [2024-10-14 20:32:59,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:32:59,330 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 462 transitions. [2024-10-14 20:32:59,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 38.333333333333336) internal successors, (345), 10 states have internal predecessors, (345), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:32:59,330 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 462 transitions. [2024-10-14 20:32:59,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-14 20:32:59,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:32:59,332 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:32:59,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 20:32:59,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 20:32:59,533 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr99ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:32:59,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:32:59,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2004999783, now seen corresponding path program 2 times [2024-10-14 20:32:59,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:32:59,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119342488] [2024-10-14 20:32:59,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:32:59,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:32:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:32:59,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1165896229] [2024-10-14 20:32:59,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:32:59,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:32:59,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:32:59,564 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:32:59,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:32:59,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:32:59,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:32:59,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:32:59,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:33:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:33:00,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:33:00,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:33:00,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119342488] [2024-10-14 20:33:00,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:33:00,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165896229] [2024-10-14 20:33:00,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165896229] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:33:00,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:33:00,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:33:00,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351929433] [2024-10-14 20:33:00,710 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:33:00,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:33:00,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:33:00,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:33:00,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:33:00,711 INFO L87 Difference]: Start difference. First operand 445 states and 462 transitions. Second operand has 8 states, 7 states have (on average 29.714285714285715) internal successors, (208), 8 states have internal predecessors, (208), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:33:01,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:33:01,182 INFO L93 Difference]: Finished difference Result 491 states and 508 transitions. [2024-10-14 20:33:01,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:33:01,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 29.714285714285715) internal successors, (208), 8 states have internal predecessors, (208), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 225 [2024-10-14 20:33:01,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:33:01,184 INFO L225 Difference]: With dead ends: 491 [2024-10-14 20:33:01,184 INFO L226 Difference]: Without dead ends: 445 [2024-10-14 20:33:01,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:33:01,185 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 2 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:33:01,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 145 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:33:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-10-14 20:33:01,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2024-10-14 20:33:01,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 416 states have (on average 1.0793269230769231) internal successors, (449), 437 states have internal predecessors, (449), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:33:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 461 transitions. [2024-10-14 20:33:01,203 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 461 transitions. Word has length 225 [2024-10-14 20:33:01,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:33:01,204 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 461 transitions. [2024-10-14 20:33:01,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 29.714285714285715) internal successors, (208), 8 states have internal predecessors, (208), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:33:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 461 transitions. [2024-10-14 20:33:01,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-10-14 20:33:01,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:33:01,206 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1] [2024-10-14 20:33:01,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-14 20:33:01,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:33:01,407 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:33:01,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:33:01,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1039624631, now seen corresponding path program 1 times [2024-10-14 20:33:01,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:33:01,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984833480] [2024-10-14 20:33:01,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:33:01,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:33:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:33:01,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816950192] [2024-10-14 20:33:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:33:01,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:33:01,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:33:01,439 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:33:01,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 20:33:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:33:01,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:33:01,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:33:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 348 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:33:01,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:33:01,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:33:01,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984833480] [2024-10-14 20:33:01,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:33:01,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816950192] [2024-10-14 20:33:01,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816950192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:33:01,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:33:01,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-14 20:33:01,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996175071] [2024-10-14 20:33:01,809 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:33:01,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:33:01,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:33:01,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:33:01,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:33:01,810 INFO L87 Difference]: Start difference. First operand 445 states and 461 transitions. Second operand has 7 states, 6 states have (on average 39.0) internal successors, (234), 7 states have internal predecessors, (234), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:33:02,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:33:02,174 INFO L93 Difference]: Finished difference Result 512 states and 536 transitions. [2024-10-14 20:33:02,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:33:02,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 39.0) internal successors, (234), 7 states have internal predecessors, (234), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 251 [2024-10-14 20:33:02,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:33:02,175 INFO L225 Difference]: With dead ends: 512 [2024-10-14 20:33:02,176 INFO L226 Difference]: Without dead ends: 507 [2024-10-14 20:33:02,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:33:02,176 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 139 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:33:02,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 78 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:33:02,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-14 20:33:02,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 471. [2024-10-14 20:33:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 441 states have (on average 1.0770975056689343) internal successors, (475), 462 states have internal predecessors, (475), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 20:33:02,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 489 transitions. [2024-10-14 20:33:02,196 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 489 transitions. Word has length 251 [2024-10-14 20:33:02,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:33:02,197 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 489 transitions. [2024-10-14 20:33:02,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 39.0) internal successors, (234), 7 states have internal predecessors, (234), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:33:02,197 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 489 transitions. [2024-10-14 20:33:02,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-10-14 20:33:02,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:33:02,200 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-10-14 20:33:02,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 20:33:02,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-10-14 20:33:02,401 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-10-14 20:33:02,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:33:02,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1858262817, now seen corresponding path program 1 times [2024-10-14 20:33:02,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:33:02,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144948828] [2024-10-14 20:33:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:33:02,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:33:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:33:02,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294266520] [2024-10-14 20:33:02,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:33:02,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:33:02,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:33:02,437 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:33:02,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 20:33:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:33:02,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:33:02,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:33:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:33:02,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:33:03,179 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:33:03,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:33:03,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144948828] [2024-10-14 20:33:03,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:33:03,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294266520] [2024-10-14 20:33:03,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294266520] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:33:03,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:33:03,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-14 20:33:03,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451506504] [2024-10-14 20:33:03,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:33:03,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:33:03,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:33:03,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:33:03,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:33:03,182 INFO L87 Difference]: Start difference. First operand 471 states and 489 transitions. Second operand has 12 states, 11 states have (on average 44.09090909090909) internal successors, (485), 12 states have internal predecessors, (485), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)