./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_11_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_11_good.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 66e3a7f896fa5340787a3c37b6c0ca2547060e04edd72a371311e7e68cf26523 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 18:24:12,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 18:24:12,286 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 18:24:12,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 18:24:12,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 18:24:12,315 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 18:24:12,316 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 18:24:12,316 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 18:24:12,316 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 18:24:12,316 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 18:24:12,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 18:24:12,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 18:24:12,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 18:24:12,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 18:24:12,318 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 18:24:12,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 18:24:12,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 18:24:12,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 18:24:12,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 18:24:12,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 18:24:12,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 18:24:12,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 18:24:12,318 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 18:24:12,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 18:24:12,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 18:24:12,319 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 18:24:12,319 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 18:24:12,319 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 18:24:12,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 18:24:12,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 18:24:12,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 18:24:12,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 18:24:12,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 18:24:12,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 18:24:12,320 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 18:24:12,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 18:24:12,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 18:24:12,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 18:24:12,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 18:24:12,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 18:24:12,320 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 18:24:12,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 18:24:12,321 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66e3a7f896fa5340787a3c37b6c0ca2547060e04edd72a371311e7e68cf26523 [2025-03-17 18:24:12,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 18:24:12,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 18:24:12,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 18:24:12,559 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 18:24:12,559 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 18:24:12,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_11_good.i [2025-03-17 18:24:13,723 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22c4cdb3a/8871c9d0e1f44216b19a4ecb18b913fc/FLAG13b1109ba [2025-03-17 18:24:14,076 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 18:24:14,079 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_11_good.i [2025-03-17 18:24:14,102 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22c4cdb3a/8871c9d0e1f44216b19a4ecb18b913fc/FLAG13b1109ba [2025-03-17 18:24:14,117 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22c4cdb3a/8871c9d0e1f44216b19a4ecb18b913fc [2025-03-17 18:24:14,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 18:24:14,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 18:24:14,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 18:24:14,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 18:24:14,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 18:24:14,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43af2c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14, skipping insertion in model container [2025-03-17 18:24:14,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,173 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 18:24:14,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 18:24:14,675 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 18:24:14,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 18:24:14,817 INFO L204 MainTranslator]: Completed translation [2025-03-17 18:24:14,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14 WrapperNode [2025-03-17 18:24:14,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 18:24:14,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 18:24:14,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 18:24:14,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 18:24:14,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,856 INFO L138 Inliner]: procedures = 502, calls = 54, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 157 [2025-03-17 18:24:14,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 18:24:14,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 18:24:14,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 18:24:14,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 18:24:14,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,866 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,877 INFO L175 MemorySlicer]: Split 2 memory accesses to 2 slices as follows [1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1]. The 0 writes are split as follows [0, 0]. [2025-03-17 18:24:14,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,881 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 18:24:14,886 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 18:24:14,886 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 18:24:14,886 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 18:24:14,887 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (1/1) ... [2025-03-17 18:24:14,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 18:24:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:24:14,916 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) [2025-03-17 18:24:14,918 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 [2025-03-17 18:24:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2025-03-17 18:24:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2025-03-17 18:24:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-17 18:24:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-17 18:24:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2025-03-17 18:24:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2025-03-17 18:24:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 18:24:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 18:24:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 18:24:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsFalse [2025-03-17 18:24:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsFalse [2025-03-17 18:24:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 18:24:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 18:24:15,047 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 18:24:15,049 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 18:24:15,230 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-03-17 18:24:15,231 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 18:24:15,238 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 18:24:15,239 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 18:24:15,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:24:15 BoogieIcfgContainer [2025-03-17 18:24:15,239 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 18:24:15,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 18:24:15,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 18:24:15,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 18:24:15,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:24:14" (1/3) ... [2025-03-17 18:24:15,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5853ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:24:15, skipping insertion in model container [2025-03-17 18:24:15,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:24:14" (2/3) ... [2025-03-17 18:24:15,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5853ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:24:15, skipping insertion in model container [2025-03-17 18:24:15,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:24:15" (3/3) ... [2025-03-17 18:24:15,247 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_11_good.i [2025-03-17 18:24:15,259 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 18:24:15,260 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_sub_11_good.i that has 5 procedures, 84 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-03-17 18:24:15,321 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 18:24:15,330 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;@1c2d03f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 18:24:15,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-17 18:24:15,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 51 states have (on average 1.411764705882353) internal successors, (72), 65 states have internal predecessors, (72), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 18:24:15,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 18:24:15,339 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:15,339 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:24:15,339 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:15,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:15,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1597001463, now seen corresponding path program 1 times [2025-03-17 18:24:15,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:15,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330371308] [2025-03-17 18:24:15,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:15,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:15,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 18:24:15,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 18:24:15,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:15,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:24:15,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:15,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330371308] [2025-03-17 18:24:15,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330371308] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:15,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:24:15,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 18:24:15,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146176510] [2025-03-17 18:24:15,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:15,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 18:24:15,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:15,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 18:24:15,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 18:24:15,592 INFO L87 Difference]: Start difference. First operand has 84 states, 51 states have (on average 1.411764705882353) internal successors, (72), 65 states have internal predecessors, (72), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 18:24:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:15,636 INFO L93 Difference]: Finished difference Result 159 states and 210 transitions. [2025-03-17 18:24:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 18:24:15,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2025-03-17 18:24:15,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:15,645 INFO L225 Difference]: With dead ends: 159 [2025-03-17 18:24:15,645 INFO L226 Difference]: Without dead ends: 77 [2025-03-17 18:24:15,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 18:24:15,649 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:15,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 322 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:15,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-17 18:24:15,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-03-17 18:24:15,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 60 states have internal predecessors, (65), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-17 18:24:15,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 101 transitions. [2025-03-17 18:24:15,681 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 101 transitions. Word has length 21 [2025-03-17 18:24:15,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:15,684 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 101 transitions. [2025-03-17 18:24:15,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 18:24:15,684 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2025-03-17 18:24:15,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-17 18:24:15,685 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:15,685 INFO L218 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] [2025-03-17 18:24:15,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 18:24:15,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:15,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:15,687 INFO L85 PathProgramCache]: Analyzing trace with hash -736762329, now seen corresponding path program 1 times [2025-03-17 18:24:15,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:15,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669165227] [2025-03-17 18:24:15,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:15,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:15,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 18:24:15,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 18:24:15,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:15,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:15,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:24:15,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:15,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669165227] [2025-03-17 18:24:15,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669165227] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:15,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:24:15,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 18:24:15,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314026958] [2025-03-17 18:24:15,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:15,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:15,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:15,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:15,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:24:15,779 INFO L87 Difference]: Start difference. First operand 77 states and 101 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 18:24:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:15,809 INFO L93 Difference]: Finished difference Result 141 states and 184 transitions. [2025-03-17 18:24:15,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:15,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2025-03-17 18:24:15,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:15,811 INFO L225 Difference]: With dead ends: 141 [2025-03-17 18:24:15,812 INFO L226 Difference]: Without dead ends: 83 [2025-03-17 18:24:15,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:24:15,813 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 8 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:15,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 195 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:15,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-17 18:24:15,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2025-03-17 18:24:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 62 states have internal predecessors, (69), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:15,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 107 transitions. [2025-03-17 18:24:15,828 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 107 transitions. Word has length 23 [2025-03-17 18:24:15,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:15,829 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 107 transitions. [2025-03-17 18:24:15,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 18:24:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 107 transitions. [2025-03-17 18:24:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-17 18:24:15,829 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:15,829 INFO L218 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] [2025-03-17 18:24:15,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 18:24:15,830 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:15,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:15,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1364795681, now seen corresponding path program 1 times [2025-03-17 18:24:15,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:15,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574724777] [2025-03-17 18:24:15,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:15,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:15,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-17 18:24:15,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-17 18:24:15,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:15,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:15,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:24:15,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:15,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574724777] [2025-03-17 18:24:15,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574724777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:15,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:24:15,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 18:24:15,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365169836] [2025-03-17 18:24:15,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:15,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:15,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:15,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:15,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:24:15,901 INFO L87 Difference]: Start difference. First operand 81 states and 107 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2025-03-17 18:24:15,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:15,919 INFO L93 Difference]: Finished difference Result 82 states and 108 transitions. [2025-03-17 18:24:15,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:15,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 24 [2025-03-17 18:24:15,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:15,921 INFO L225 Difference]: With dead ends: 82 [2025-03-17 18:24:15,922 INFO L226 Difference]: Without dead ends: 81 [2025-03-17 18:24:15,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:24:15,923 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 4 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:15,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 177 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:15,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-03-17 18:24:15,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 80. [2025-03-17 18:24:15,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 61 states have internal predecessors, (68), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:15,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 106 transitions. [2025-03-17 18:24:15,929 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 106 transitions. Word has length 24 [2025-03-17 18:24:15,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:15,929 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 106 transitions. [2025-03-17 18:24:15,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2025-03-17 18:24:15,929 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 106 transitions. [2025-03-17 18:24:15,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-17 18:24:15,930 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:15,930 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:24:15,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 18:24:15,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:15,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:15,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1815562031, now seen corresponding path program 1 times [2025-03-17 18:24:15,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:15,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701942075] [2025-03-17 18:24:15,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:15,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:15,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 18:24:15,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 18:24:15,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:15,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 18:24:16,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:16,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701942075] [2025-03-17 18:24:16,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701942075] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:16,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:24:16,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 18:24:16,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012245345] [2025-03-17 18:24:16,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:16,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 18:24:16,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:16,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 18:24:16,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 18:24:16,023 INFO L87 Difference]: Start difference. First operand 80 states and 106 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 18:24:16,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:16,035 INFO L93 Difference]: Finished difference Result 136 states and 176 transitions. [2025-03-17 18:24:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 18:24:16,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2025-03-17 18:24:16,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:16,039 INFO L225 Difference]: With dead ends: 136 [2025-03-17 18:24:16,039 INFO L226 Difference]: Without dead ends: 79 [2025-03-17 18:24:16,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 18:24:16,039 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:16,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2025-03-17 18:24:16,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2025-03-17 18:24:16,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 60 states have internal predecessors, (66), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-17 18:24:16,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2025-03-17 18:24:16,049 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 41 [2025-03-17 18:24:16,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:16,049 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2025-03-17 18:24:16,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 18:24:16,050 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2025-03-17 18:24:16,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-17 18:24:16,052 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:16,052 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:24:16,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 18:24:16,052 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:16,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:16,053 INFO L85 PathProgramCache]: Analyzing trace with hash -853698645, now seen corresponding path program 1 times [2025-03-17 18:24:16,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:16,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796600226] [2025-03-17 18:24:16,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:16,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:16,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 18:24:16,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 18:24:16,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:16,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 18:24:16,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:16,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796600226] [2025-03-17 18:24:16,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796600226] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:24:16,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796149574] [2025-03-17 18:24:16,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:16,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:16,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:24:16,149 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) [2025-03-17 18:24:16,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 18:24:16,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 18:24:16,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 18:24:16,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:16,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:16,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 18:24:16,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:24:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 18:24:16,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:24:16,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796149574] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:16,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:24:16,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 18:24:16,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212823275] [2025-03-17 18:24:16,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:16,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:16,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:16,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:16,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:16,273 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 18:24:16,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:16,296 INFO L93 Difference]: Finished difference Result 127 states and 160 transitions. [2025-03-17 18:24:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:16,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2025-03-17 18:24:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:16,297 INFO L225 Difference]: With dead ends: 127 [2025-03-17 18:24:16,299 INFO L226 Difference]: Without dead ends: 87 [2025-03-17 18:24:16,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:16,299 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 5 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:16,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 183 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:16,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-03-17 18:24:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2025-03-17 18:24:16,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 64 states have internal predecessors, (72), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:16,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2025-03-17 18:24:16,308 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 42 [2025-03-17 18:24:16,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:16,309 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2025-03-17 18:24:16,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 18:24:16,309 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2025-03-17 18:24:16,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 18:24:16,310 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:16,310 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:24:16,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 18:24:16,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:16,513 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:16,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:16,514 INFO L85 PathProgramCache]: Analyzing trace with hash -694854205, now seen corresponding path program 1 times [2025-03-17 18:24:16,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:16,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763054185] [2025-03-17 18:24:16,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:16,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:16,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 18:24:16,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 18:24:16,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:16,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:16,581 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 18:24:16,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:16,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763054185] [2025-03-17 18:24:16,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763054185] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:24:16,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323534208] [2025-03-17 18:24:16,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:16,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:16,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:24:16,583 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) [2025-03-17 18:24:16,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 18:24:16,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 18:24:16,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 18:24:16,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:16,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:16,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 18:24:16,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:24:16,678 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 18:24:16,678 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:24:16,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323534208] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:16,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:24:16,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 18:24:16,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472551973] [2025-03-17 18:24:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:16,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:16,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:16,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:16,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:16,680 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 18:24:16,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:16,696 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2025-03-17 18:24:16,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:16,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2025-03-17 18:24:16,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:16,698 INFO L225 Difference]: With dead ends: 88 [2025-03-17 18:24:16,698 INFO L226 Difference]: Without dead ends: 87 [2025-03-17 18:24:16,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:16,698 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 4 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:16,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 175 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:16,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-03-17 18:24:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2025-03-17 18:24:16,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 57 states have (on average 1.280701754385965) internal successors, (73), 65 states have internal predecessors, (73), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2025-03-17 18:24:16,704 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 43 [2025-03-17 18:24:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:16,704 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2025-03-17 18:24:16,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 18:24:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2025-03-17 18:24:16,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-17 18:24:16,705 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:16,705 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:24:16,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 18:24:16,905 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,SelfDestructingSolverStorable5 [2025-03-17 18:24:16,906 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:16,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:16,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1160587991, now seen corresponding path program 1 times [2025-03-17 18:24:16,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:16,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484429614] [2025-03-17 18:24:16,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:16,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:16,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 18:24:16,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 18:24:16,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:16,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 18:24:16,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:16,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484429614] [2025-03-17 18:24:16,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484429614] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:16,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:24:16,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 18:24:16,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753725040] [2025-03-17 18:24:16,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:16,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:16,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:16,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:16,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:24:16,943 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-17 18:24:16,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:16,955 INFO L93 Difference]: Finished difference Result 87 states and 112 transitions. [2025-03-17 18:24:16,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:16,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2025-03-17 18:24:16,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:16,956 INFO L225 Difference]: With dead ends: 87 [2025-03-17 18:24:16,956 INFO L226 Difference]: Without dead ends: 86 [2025-03-17 18:24:16,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:24:16,957 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 9 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 179 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 [2025-03-17 18:24:16,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 179 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:16,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-03-17 18:24:16,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2025-03-17 18:24:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 57 states have (on average 1.263157894736842) internal successors, (72), 64 states have internal predecessors, (72), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:16,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2025-03-17 18:24:16,962 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 44 [2025-03-17 18:24:16,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:16,962 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2025-03-17 18:24:16,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-17 18:24:16,962 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2025-03-17 18:24:16,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-17 18:24:16,963 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:16,963 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:24:16,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 18:24:16,963 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:16,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:16,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1618489339, now seen corresponding path program 1 times [2025-03-17 18:24:16,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:16,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553136367] [2025-03-17 18:24:16,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:16,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:16,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 18:24:16,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 18:24:16,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:16,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 18:24:17,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:17,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553136367] [2025-03-17 18:24:17,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553136367] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:17,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:24:17,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 18:24:17,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899254230] [2025-03-17 18:24:17,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:17,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:17,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:17,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:17,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:24:17,005 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 18:24:17,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:17,036 INFO L93 Difference]: Finished difference Result 86 states and 111 transitions. [2025-03-17 18:24:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:17,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2025-03-17 18:24:17,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:17,037 INFO L225 Difference]: With dead ends: 86 [2025-03-17 18:24:17,037 INFO L226 Difference]: Without dead ends: 85 [2025-03-17 18:24:17,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:24:17,037 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 5 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:17,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 166 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:17,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2025-03-17 18:24:17,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2025-03-17 18:24:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 61 states have internal predecessors, (69), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:17,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2025-03-17 18:24:17,042 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 45 [2025-03-17 18:24:17,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:17,042 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2025-03-17 18:24:17,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-17 18:24:17,042 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2025-03-17 18:24:17,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-17 18:24:17,043 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:17,043 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2025-03-17 18:24:17,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 18:24:17,044 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:17,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1117557209, now seen corresponding path program 1 times [2025-03-17 18:24:17,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:17,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724057469] [2025-03-17 18:24:17,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:17,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:17,051 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 18:24:17,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 18:24:17,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:17,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:17,089 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-17 18:24:17,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:17,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724057469] [2025-03-17 18:24:17,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724057469] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:24:17,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548321195] [2025-03-17 18:24:17,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:17,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:17,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:24:17,093 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) [2025-03-17 18:24:17,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 18:24:17,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 18:24:17,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 18:24:17,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:17,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:17,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 18:24:17,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:24:17,185 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 18:24:17,185 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:24:17,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548321195] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:17,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:24:17,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 18:24:17,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61977292] [2025-03-17 18:24:17,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:17,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:17,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:17,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:17,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:17,186 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 18:24:17,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:17,195 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2025-03-17 18:24:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:17,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2025-03-17 18:24:17,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:17,198 INFO L225 Difference]: With dead ends: 83 [2025-03-17 18:24:17,198 INFO L226 Difference]: Without dead ends: 82 [2025-03-17 18:24:17,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:17,198 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 4 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:17,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 169 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:17,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2025-03-17 18:24:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2025-03-17 18:24:17,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 60 states have internal predecessors, (68), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2025-03-17 18:24:17,208 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 106 transitions. Word has length 54 [2025-03-17 18:24:17,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:17,208 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 106 transitions. [2025-03-17 18:24:17,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 18:24:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2025-03-17 18:24:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-17 18:24:17,212 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:17,212 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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] [2025-03-17 18:24:17,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 18:24:17,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:17,413 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:17,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash -284535113, now seen corresponding path program 1 times [2025-03-17 18:24:17,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:17,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570828647] [2025-03-17 18:24:17,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:17,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:17,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-17 18:24:17,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-17 18:24:17,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:17,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-17 18:24:17,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:17,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570828647] [2025-03-17 18:24:17,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570828647] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:24:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728302789] [2025-03-17 18:24:17,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:17,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:17,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:24:17,502 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) [2025-03-17 18:24:17,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 18:24:17,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-17 18:24:17,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-17 18:24:17,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:17,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:17,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 18:24:17,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:24:17,600 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 18:24:17,602 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:24:17,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728302789] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:17,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:24:17,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 18:24:17,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055469733] [2025-03-17 18:24:17,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:17,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:17,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:17,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:17,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:17,603 INFO L87 Difference]: Start difference. First operand 81 states and 106 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 18:24:17,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:17,619 INFO L93 Difference]: Finished difference Result 88 states and 115 transitions. [2025-03-17 18:24:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2025-03-17 18:24:17,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:17,623 INFO L225 Difference]: With dead ends: 88 [2025-03-17 18:24:17,623 INFO L226 Difference]: Without dead ends: 87 [2025-03-17 18:24:17,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:17,624 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 1 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:17,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 178 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:17,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-03-17 18:24:17,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2025-03-17 18:24:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 63 states have internal predecessors, (73), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 18:24:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 113 transitions. [2025-03-17 18:24:17,631 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 113 transitions. Word has length 55 [2025-03-17 18:24:17,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:17,632 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 113 transitions. [2025-03-17 18:24:17,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 18:24:17,632 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 113 transitions. [2025-03-17 18:24:17,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-17 18:24:17,633 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:17,633 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:24:17,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 18:24:17,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:17,834 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:17,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:17,834 INFO L85 PathProgramCache]: Analyzing trace with hash 946389264, now seen corresponding path program 1 times [2025-03-17 18:24:17,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:17,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287922821] [2025-03-17 18:24:17,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:17,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:17,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-17 18:24:17,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-17 18:24:17,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:17,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-17 18:24:17,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:17,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287922821] [2025-03-17 18:24:17,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287922821] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:24:17,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600349712] [2025-03-17 18:24:17,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:17,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:17,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:24:17,898 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) [2025-03-17 18:24:17,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 18:24:17,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-17 18:24:17,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-17 18:24:17,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:17,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:17,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 18:24:17,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:24:18,011 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-03-17 18:24:18,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:24:18,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600349712] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:18,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:24:18,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 18:24:18,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413328404] [2025-03-17 18:24:18,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:18,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:18,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:18,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:18,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:18,012 INFO L87 Difference]: Start difference. First operand 86 states and 113 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-17 18:24:18,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:18,026 INFO L93 Difference]: Finished difference Result 87 states and 114 transitions. [2025-03-17 18:24:18,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:18,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2025-03-17 18:24:18,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:18,028 INFO L225 Difference]: With dead ends: 87 [2025-03-17 18:24:18,028 INFO L226 Difference]: Without dead ends: 86 [2025-03-17 18:24:18,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:18,029 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 1 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:18,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 169 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:18,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-03-17 18:24:18,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 80. [2025-03-17 18:24:18,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 55 states have (on average 1.2181818181818183) internal successors, (67), 59 states have internal predecessors, (67), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:18,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2025-03-17 18:24:18,040 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 60 [2025-03-17 18:24:18,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:18,040 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2025-03-17 18:24:18,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-17 18:24:18,041 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2025-03-17 18:24:18,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-17 18:24:18,041 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:18,041 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-17 18:24:18,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 18:24:18,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-17 18:24:18,242 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:18,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:18,243 INFO L85 PathProgramCache]: Analyzing trace with hash -728209388, now seen corresponding path program 1 times [2025-03-17 18:24:18,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:18,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857749218] [2025-03-17 18:24:18,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:18,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:18,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 18:24:18,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 18:24:18,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:18,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:18,297 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-03-17 18:24:18,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:18,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857749218] [2025-03-17 18:24:18,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857749218] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:24:18,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311114143] [2025-03-17 18:24:18,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:18,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:18,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:24:18,300 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) [2025-03-17 18:24:18,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 18:24:18,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-17 18:24:18,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 18:24:18,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:18,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:18,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 18:24:18,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:24:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-17 18:24:18,385 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:24:18,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311114143] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:18,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:24:18,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 18:24:18,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344052063] [2025-03-17 18:24:18,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:18,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:18,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:18,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:18,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:18,387 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-17 18:24:18,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:18,394 INFO L93 Difference]: Finished difference Result 80 states and 105 transitions. [2025-03-17 18:24:18,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:18,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 67 [2025-03-17 18:24:18,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:18,395 INFO L225 Difference]: With dead ends: 80 [2025-03-17 18:24:18,395 INFO L226 Difference]: Without dead ends: 79 [2025-03-17 18:24:18,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:18,396 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 3 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:18,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 170 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2025-03-17 18:24:18,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2025-03-17 18:24:18,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.2) internal successors, (66), 58 states have internal predecessors, (66), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:18,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2025-03-17 18:24:18,400 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 67 [2025-03-17 18:24:18,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:18,401 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2025-03-17 18:24:18,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-17 18:24:18,401 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2025-03-17 18:24:18,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-17 18:24:18,401 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:18,402 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-17 18:24:18,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 18:24:18,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:18,606 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:18,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:18,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1099654565, now seen corresponding path program 1 times [2025-03-17 18:24:18,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:18,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147078363] [2025-03-17 18:24:18,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:18,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:18,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 18:24:18,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 18:24:18,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:18,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-03-17 18:24:18,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:18,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147078363] [2025-03-17 18:24:18,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147078363] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:24:18,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344815671] [2025-03-17 18:24:18,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:18,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:18,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:24:18,650 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) [2025-03-17 18:24:18,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 18:24:18,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 18:24:18,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 18:24:18,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:18,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:18,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 18:24:18,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:24:18,739 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-17 18:24:18,739 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:24:18,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344815671] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:18,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:24:18,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 18:24:18,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711214858] [2025-03-17 18:24:18,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:18,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:18,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:18,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:18,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:18,741 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-17 18:24:18,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:18,753 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2025-03-17 18:24:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:18,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2025-03-17 18:24:18,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:18,754 INFO L225 Difference]: With dead ends: 85 [2025-03-17 18:24:18,754 INFO L226 Difference]: Without dead ends: 79 [2025-03-17 18:24:18,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:18,755 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:18,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:18,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2025-03-17 18:24:18,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2025-03-17 18:24:18,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 58 states have internal predecessors, (65), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 18:24:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2025-03-17 18:24:18,761 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 68 [2025-03-17 18:24:18,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:18,762 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2025-03-17 18:24:18,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-17 18:24:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2025-03-17 18:24:18,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-17 18:24:18,763 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:24:18,763 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2025-03-17 18:24:18,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 18:24:18,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:18,964 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-03-17 18:24:18,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:24:18,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1387858268, now seen corresponding path program 1 times [2025-03-17 18:24:18,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:24:18,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812161080] [2025-03-17 18:24:18,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:18,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:24:18,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 18:24:18,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 18:24:18,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:18,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-03-17 18:24:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:24:19,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812161080] [2025-03-17 18:24:19,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812161080] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:24:19,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318684757] [2025-03-17 18:24:19,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:24:19,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:24:19,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:24:19,039 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) [2025-03-17 18:24:19,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 18:24:19,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 18:24:19,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 18:24:19,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:24:19,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:24:19,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 18:24:19,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:24:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-17 18:24:19,131 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:24:19,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318684757] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:24:19,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:24:19,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 18:24:19,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001560060] [2025-03-17 18:24:19,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:24:19,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:24:19,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:24:19,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:24:19,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:19,132 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-17 18:24:19,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:24:19,139 INFO L93 Difference]: Finished difference Result 79 states and 103 transitions. [2025-03-17 18:24:19,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:24:19,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2025-03-17 18:24:19,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:24:19,140 INFO L225 Difference]: With dead ends: 79 [2025-03-17 18:24:19,140 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 18:24:19,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:24:19,142 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 18:24:19,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 18:24:19,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 18:24:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 18:24:19,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2025-03-17 18:24:19,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 18:24:19,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2025-03-17 18:24:19,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:24:19,143 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 18:24:19,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-17 18:24:19,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 18:24:19,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 18:24:19,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2025-03-17 18:24:19,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2025-03-17 18:24:19,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2025-03-17 18:24:19,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2025-03-17 18:24:19,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2025-03-17 18:24:19,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2025-03-17 18:24:19,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2025-03-17 18:24:19,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2025-03-17 18:24:19,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 18:24:19,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-17 18:24:19,349 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:24:19,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-17 18:24:19,414 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 18:24:19,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:24:19 BoogieIcfgContainer [2025-03-17 18:24:19,418 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 18:24:19,419 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 18:24:19,419 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 18:24:19,419 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 18:24:19,420 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:24:15" (3/4) ... [2025-03-17 18:24:19,422 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 18:24:19,426 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure printLine [2025-03-17 18:24:19,426 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure globalReturnsFalse [2025-03-17 18:24:19,426 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure printIntLine [2025-03-17 18:24:19,426 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrue [2025-03-17 18:24:19,431 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-17 18:24:19,431 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-17 18:24:19,432 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-17 18:24:19,432 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 18:24:19,432 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 18:24:19,495 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 18:24:19,495 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 18:24:19,495 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 18:24:19,496 INFO L158 Benchmark]: Toolchain (without parser) took 5375.43ms. Allocated memory is still 167.8MB. Free memory was 125.9MB in the beginning and 90.8MB in the end (delta: 35.1MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2025-03-17 18:24:19,496 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 18:24:19,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.81ms. Allocated memory is still 167.8MB. Free memory was 125.9MB in the beginning and 66.3MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-17 18:24:19,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.68ms. Allocated memory is still 167.8MB. Free memory was 66.3MB in the beginning and 63.2MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 18:24:19,497 INFO L158 Benchmark]: Boogie Preprocessor took 27.58ms. Allocated memory is still 167.8MB. Free memory was 63.2MB in the beginning and 61.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 18:24:19,497 INFO L158 Benchmark]: IcfgBuilder took 353.66ms. Allocated memory is still 167.8MB. Free memory was 61.3MB in the beginning and 42.9MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 18:24:19,497 INFO L158 Benchmark]: TraceAbstraction took 4177.57ms. Allocated memory is still 167.8MB. Free memory was 42.3MB in the beginning and 99.0MB in the end (delta: -56.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 18:24:19,497 INFO L158 Benchmark]: Witness Printer took 76.70ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 90.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 18:24:19,500 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.81ms. Allocated memory is still 167.8MB. Free memory was 125.9MB in the beginning and 66.3MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.68ms. Allocated memory is still 167.8MB. Free memory was 66.3MB in the beginning and 63.2MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.58ms. Allocated memory is still 167.8MB. Free memory was 63.2MB in the beginning and 61.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 353.66ms. Allocated memory is still 167.8MB. Free memory was 61.3MB in the beginning and 42.9MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4177.57ms. Allocated memory is still 167.8MB. Free memory was 42.3MB in the beginning and 99.0MB in the end (delta: -56.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 76.70ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 90.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 132 edges, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 14, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 2710 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1379 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1331 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 497 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=6, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 18 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1112 NumberOfCodeBlocks, 1112 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1090 ConstructedInterpolants, 0 QuantifiedInterpolants, 1346 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1785 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 22 InterpolantComputations, 14 PerfectInterpolantSequences, 529/569 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 18:24:19,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE