./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/logname-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/busybox-1.22.0/logname-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 c974ed4f1d4c3d5b838cbfadb19eec8f0977d5398d9ade006a615b896bd7b5af --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 17:59:34,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 17:59:34,160 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 17:59:34,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 17:59:34,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 17:59:34,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 17:59:34,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 17:59:34,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 17:59:34,190 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 17:59:34,190 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 17:59:34,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 17:59:34,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 17:59:34,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 17:59:34,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 17:59:34,192 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 17:59:34,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 17:59:34,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 17:59:34,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 17:59:34,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 17:59:34,193 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 17:59:34,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 17:59:34,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:59:34,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 17:59:34,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 17:59:34,194 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 17:59:34,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 17:59:34,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 17:59:34,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 17:59:34,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 17:59:34,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 17:59:34,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 17:59:34,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 17:59:34,195 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-jdk21/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 -> c974ed4f1d4c3d5b838cbfadb19eec8f0977d5398d9ade006a615b896bd7b5af [2025-02-06 17:59:34,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 17:59:34,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 17:59:34,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 17:59:34,445 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 17:59:34,445 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 17:59:34,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/logname-1.i [2025-02-06 17:59:35,684 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/67c3cac30/e3c00c26fb8546d690c5661138e070a6/FLAG81ff741cc [2025-02-06 17:59:36,113 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 17:59:36,118 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/logname-1.i [2025-02-06 17:59:36,147 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/67c3cac30/e3c00c26fb8546d690c5661138e070a6/FLAG81ff741cc [2025-02-06 17:59:36,254 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/67c3cac30/e3c00c26fb8546d690c5661138e070a6 [2025-02-06 17:59:36,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 17:59:36,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 17:59:36,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 17:59:36,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 17:59:36,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 17:59:36,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:59:36" (1/1) ... [2025-02-06 17:59:36,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67682a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:36, skipping insertion in model container [2025-02-06 17:59:36,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:59:36" (1/1) ... [2025-02-06 17:59:36,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 17:59:36,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:59:36,899 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 17:59:36,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:59:37,079 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-02-06 17:59:37,085 INFO L204 MainTranslator]: Completed translation [2025-02-06 17:59:37,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37 WrapperNode [2025-02-06 17:59:37,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 17:59:37,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 17:59:37,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 17:59:37,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 17:59:37,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,156 INFO L138 Inliner]: procedures = 594, calls = 490, calls flagged for inlining = 16, calls inlined = 14, statements flattened = 807 [2025-02-06 17:59:37,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 17:59:37,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 17:59:37,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 17:59:37,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 17:59:37,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,202 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-02-06 17:59:37,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,241 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 17:59:37,274 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 17:59:37,274 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 17:59:37,274 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 17:59:37,274 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (1/1) ... [2025-02-06 17:59:37,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:59:37,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:37,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 17:59:37,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 17:59:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 17:59:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-02-06 17:59:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-02-06 17:59:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 17:59:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 17:59:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 17:59:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 17:59:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 17:59:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 17:59:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-02-06 17:59:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-02-06 17:59:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-02-06 17:59:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-02-06 17:59:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 17:59:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 17:59:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 17:59:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 17:59:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2025-02-06 17:59:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2025-02-06 17:59:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 17:59:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 17:59:37,589 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 17:59:37,590 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 17:59:38,058 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2406: havoc getlogin_r_~ret~0#1; [2025-02-06 17:59:38,058 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2371: havoc __main_~return_value_fflush_all$1~0#1; [2025-02-06 17:59:38,101 INFO L? ?]: Removed 211 outVars from TransFormulas that were not future-live. [2025-02-06 17:59:38,101 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 17:59:38,112 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 17:59:38,112 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 17:59:38,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:59:38 BoogieIcfgContainer [2025-02-06 17:59:38,113 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 17:59:38,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 17:59:38,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 17:59:38,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 17:59:38,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:59:36" (1/3) ... [2025-02-06 17:59:38,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e493820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:59:38, skipping insertion in model container [2025-02-06 17:59:38,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:37" (2/3) ... [2025-02-06 17:59:38,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e493820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:59:38, skipping insertion in model container [2025-02-06 17:59:38,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:59:38" (3/3) ... [2025-02-06 17:59:38,119 INFO L128 eAbstractionObserver]: Analyzing ICFG logname-1.i [2025-02-06 17:59:38,128 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 17:59:38,129 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG logname-1.i that has 4 procedures, 161 locations, 1 initial locations, 12 loop locations, and 34 error locations. [2025-02-06 17:59:38,162 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 17:59:38,170 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;@75607f69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 17:59:38,171 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2025-02-06 17:59:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 113 states have (on average 1.6106194690265487) internal successors, (182), 147 states have internal predecessors, (182), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 17:59:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 17:59:38,184 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:38,185 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 17:59:38,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:38,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:38,193 INFO L85 PathProgramCache]: Analyzing trace with hash 7417919, now seen corresponding path program 1 times [2025-02-06 17:59:38,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:38,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654810488] [2025-02-06 17:59:38,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:38,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:38,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 17:59:38,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 17:59:38,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:38,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:38,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:38,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:38,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654810488] [2025-02-06 17:59:38,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654810488] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:38,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:59:38,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:59:38,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260489949] [2025-02-06 17:59:38,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:38,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:59:38,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:38,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:59:38,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:59:38,718 INFO L87 Difference]: Start difference. First operand has 161 states, 113 states have (on average 1.6106194690265487) internal successors, (182), 147 states have internal predecessors, (182), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-06 17:59:38,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:38,771 INFO L93 Difference]: Finished difference Result 224 states and 287 transitions. [2025-02-06 17:59:38,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:59:38,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-02-06 17:59:38,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:38,779 INFO L225 Difference]: With dead ends: 224 [2025-02-06 17:59:38,779 INFO L226 Difference]: Without dead ends: 67 [2025-02-06 17:59:38,782 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 [2025-02-06 17:59:38,786 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 1 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:38,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 142 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:38,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2025-02-06 17:59:38,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2025-02-06 17:59:38,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 60 states have internal predecessors, (69), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:38,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 78 transitions. [2025-02-06 17:59:38,827 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 78 transitions. Word has length 4 [2025-02-06 17:59:38,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:38,828 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 78 transitions. [2025-02-06 17:59:38,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-06 17:59:38,828 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 78 transitions. [2025-02-06 17:59:38,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-06 17:59:38,828 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:38,829 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-02-06 17:59:38,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 17:59:38,829 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:38,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:38,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1944066734, now seen corresponding path program 1 times [2025-02-06 17:59:38,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:38,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252348432] [2025-02-06 17:59:38,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:38,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:38,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 17:59:38,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 17:59:38,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:38,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:39,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:39,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252348432] [2025-02-06 17:59:39,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252348432] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:39,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061323785] [2025-02-06 17:59:39,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:39,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:39,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:39,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:39,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 17:59:39,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 17:59:39,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 17:59:39,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:39,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:39,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 17:59:39,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:39,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:59:39,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061323785] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:39,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 17:59:39,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-02-06 17:59:39,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124678584] [2025-02-06 17:59:39,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:39,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 17:59:39,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:39,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 17:59:39,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:59:39,345 INFO L87 Difference]: Start difference. First operand 67 states and 78 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2025-02-06 17:59:39,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:39,367 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2025-02-06 17:59:39,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 17:59:39,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-06 17:59:39,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:39,368 INFO L225 Difference]: With dead ends: 67 [2025-02-06 17:59:39,368 INFO L226 Difference]: Without dead ends: 66 [2025-02-06 17:59:39,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:59:39,369 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 1 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:39,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 137 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:39,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2025-02-06 17:59:39,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2025-02-06 17:59:39,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.446808510638298) internal successors, (68), 59 states have internal predecessors, (68), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:39,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2025-02-06 17:59:39,373 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 7 [2025-02-06 17:59:39,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:39,374 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2025-02-06 17:59:39,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2025-02-06 17:59:39,374 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2025-02-06 17:59:39,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 17:59:39,374 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:39,374 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-02-06 17:59:39,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 17:59:39,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:39,576 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:39,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:39,577 INFO L85 PathProgramCache]: Analyzing trace with hash 136526785, now seen corresponding path program 1 times [2025-02-06 17:59:39,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:39,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094278090] [2025-02-06 17:59:39,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:39,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:39,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 17:59:39,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 17:59:39,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:39,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:39,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 17:59:39,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:39,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094278090] [2025-02-06 17:59:39,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094278090] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:39,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:59:39,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:59:39,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093443665] [2025-02-06 17:59:39,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:39,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:59:39,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:39,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:59:39,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:59:39,756 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-02-06 17:59:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:39,770 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2025-02-06 17:59:39,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:59:39,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-06 17:59:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:39,772 INFO L225 Difference]: With dead ends: 66 [2025-02-06 17:59:39,773 INFO L226 Difference]: Without dead ends: 65 [2025-02-06 17:59:39,773 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 [2025-02-06 17:59:39,774 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:39,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:39,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2025-02-06 17:59:39,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2025-02-06 17:59:39,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 56 states have internal predecessors, (65), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:39,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2025-02-06 17:59:39,783 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 8 [2025-02-06 17:59:39,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:39,784 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2025-02-06 17:59:39,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-02-06 17:59:39,784 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2025-02-06 17:59:39,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 17:59:39,784 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:39,784 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:39,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 17:59:39,784 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:39,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:39,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1639982750, now seen corresponding path program 1 times [2025-02-06 17:59:39,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:39,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809618387] [2025-02-06 17:59:39,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:39,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:39,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 17:59:39,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 17:59:39,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:39,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:39,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:39,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:39,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809618387] [2025-02-06 17:59:39,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809618387] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:39,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495255788] [2025-02-06 17:59:39,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:39,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:39,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:39,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:39,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 17:59:40,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 17:59:40,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 17:59:40,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:40,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:40,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 17:59:40,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:40,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 17:59:40,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:59:40,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495255788] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:40,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 17:59:40,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-02-06 17:59:40,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763378954] [2025-02-06 17:59:40,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:40,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:59:40,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:40,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:59:40,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:59:40,205 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:40,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:40,224 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2025-02-06 17:59:40,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:59:40,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-02-06 17:59:40,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:40,225 INFO L225 Difference]: With dead ends: 63 [2025-02-06 17:59:40,225 INFO L226 Difference]: Without dead ends: 61 [2025-02-06 17:59:40,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:59:40,226 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 48 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:40,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 78 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:40,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-02-06 17:59:40,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2025-02-06 17:59:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 45 states have (on average 1.4) internal successors, (63), 54 states have internal predecessors, (63), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:40,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2025-02-06 17:59:40,230 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 12 [2025-02-06 17:59:40,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:40,235 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2025-02-06 17:59:40,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:40,235 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2025-02-06 17:59:40,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 17:59:40,235 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:40,235 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:40,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 17:59:40,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:40,436 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:40,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:40,437 INFO L85 PathProgramCache]: Analyzing trace with hash 700142471, now seen corresponding path program 1 times [2025-02-06 17:59:40,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:40,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923576453] [2025-02-06 17:59:40,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:40,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:40,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 17:59:40,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 17:59:40,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:40,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:40,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:40,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923576453] [2025-02-06 17:59:40,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923576453] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:40,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475367379] [2025-02-06 17:59:40,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:40,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:40,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:40,615 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:40,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 17:59:40,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 17:59:40,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 17:59:40,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:40,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:40,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 17:59:40,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:40,869 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 17:59:40,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:40,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475367379] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 17:59:40,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 17:59:40,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 17:59:40,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397706838] [2025-02-06 17:59:40,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 17:59:40,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 17:59:40,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:40,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 17:59:40,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 17:59:40,899 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:40,924 INFO L93 Difference]: Finished difference Result 125 states and 149 transitions. [2025-02-06 17:59:40,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 17:59:40,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2025-02-06 17:59:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:40,925 INFO L225 Difference]: With dead ends: 125 [2025-02-06 17:59:40,925 INFO L226 Difference]: Without dead ends: 70 [2025-02-06 17:59:40,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 17:59:40,925 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 4 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:40,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 134 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:40,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2025-02-06 17:59:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2025-02-06 17:59:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 63 states have internal predecessors, (72), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2025-02-06 17:59:40,930 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 13 [2025-02-06 17:59:40,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:40,930 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2025-02-06 17:59:40,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:40,930 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2025-02-06 17:59:40,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 17:59:40,930 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:40,931 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:40,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 17:59:41,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:41,137 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:41,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1381661592, now seen corresponding path program 2 times [2025-02-06 17:59:41,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:41,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854454199] [2025-02-06 17:59:41,138 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 17:59:41,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:41,187 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-06 17:59:41,207 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 22 statements. [2025-02-06 17:59:41,208 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 17:59:41,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 17:59:41,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:41,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854454199] [2025-02-06 17:59:41,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854454199] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:41,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:59:41,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 17:59:41,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41998821] [2025-02-06 17:59:41,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:41,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 17:59:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:41,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 17:59:41,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:59:41,418 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:41,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:41,467 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2025-02-06 17:59:41,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 17:59:41,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-02-06 17:59:41,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:41,475 INFO L225 Difference]: With dead ends: 70 [2025-02-06 17:59:41,475 INFO L226 Difference]: Without dead ends: 68 [2025-02-06 17:59:41,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:59:41,476 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 47 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:41,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 177 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:41,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-02-06 17:59:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2025-02-06 17:59:41,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 61 states have internal predecessors, (70), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:41,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2025-02-06 17:59:41,480 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 22 [2025-02-06 17:59:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:41,480 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2025-02-06 17:59:41,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2025-02-06 17:59:41,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-02-06 17:59:41,481 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:41,481 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:41,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 17:59:41,481 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:41,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:41,482 INFO L85 PathProgramCache]: Analyzing trace with hash 114939340, now seen corresponding path program 1 times [2025-02-06 17:59:41,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:41,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580875788] [2025-02-06 17:59:41,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:41,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:41,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 17:59:41,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 17:59:41,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:41,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 17:59:41,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:41,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580875788] [2025-02-06 17:59:41,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580875788] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:41,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:59:41,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:59:41,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419940234] [2025-02-06 17:59:41,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:41,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:59:41,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:41,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:59:41,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:59:41,649 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:41,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:41,664 INFO L93 Difference]: Finished difference Result 119 states and 142 transitions. [2025-02-06 17:59:41,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:59:41,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2025-02-06 17:59:41,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:41,665 INFO L225 Difference]: With dead ends: 119 [2025-02-06 17:59:41,666 INFO L226 Difference]: Without dead ends: 71 [2025-02-06 17:59:41,666 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 [2025-02-06 17:59:41,666 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 1 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 127 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 [2025-02-06 17:59:41,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 127 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:41,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-02-06 17:59:41,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-02-06 17:59:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 57 states have (on average 1.280701754385965) internal successors, (73), 64 states have internal predecessors, (73), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 82 transitions. [2025-02-06 17:59:41,671 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 82 transitions. Word has length 27 [2025-02-06 17:59:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:41,671 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 82 transitions. [2025-02-06 17:59:41,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 82 transitions. [2025-02-06 17:59:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-02-06 17:59:41,672 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:41,672 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:41,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 17:59:41,673 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:41,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:41,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1069101041, now seen corresponding path program 1 times [2025-02-06 17:59:41,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:41,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540758311] [2025-02-06 17:59:41,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:41,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:41,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 17:59:41,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 17:59:41,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:41,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:41,858 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 17:59:41,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:41,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540758311] [2025-02-06 17:59:41,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540758311] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:41,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522792459] [2025-02-06 17:59:41,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:41,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:41,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:41,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:41,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 17:59:42,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 17:59:42,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 17:59:42,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:42,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:42,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 17:59:42,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:42,204 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 17:59:42,204 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 17:59:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 17:59:42,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522792459] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 17:59:42,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 17:59:42,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2025-02-06 17:59:42,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529715088] [2025-02-06 17:59:42,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 17:59:42,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 17:59:42,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:42,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 17:59:42,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-02-06 17:59:42,283 INFO L87 Difference]: Start difference. First operand 71 states and 82 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 17:59:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:42,367 INFO L93 Difference]: Finished difference Result 144 states and 172 transitions. [2025-02-06 17:59:42,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 17:59:42,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2025-02-06 17:59:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:42,370 INFO L225 Difference]: With dead ends: 144 [2025-02-06 17:59:42,370 INFO L226 Difference]: Without dead ends: 88 [2025-02-06 17:59:42,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-02-06 17:59:42,371 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 5 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:42,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 408 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 17:59:42,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-02-06 17:59:42,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2025-02-06 17:59:42,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 75 states have (on average 1.2) internal successors, (90), 81 states have internal predecessors, (90), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2025-02-06 17:59:42,382 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 30 [2025-02-06 17:59:42,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:42,382 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2025-02-06 17:59:42,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 17:59:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2025-02-06 17:59:42,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-02-06 17:59:42,383 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:42,383 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:42,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 17:59:42,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-06 17:59:42,584 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:42,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:42,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1792954417, now seen corresponding path program 1 times [2025-02-06 17:59:42,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:42,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352337455] [2025-02-06 17:59:42,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:42,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:42,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 17:59:42,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 17:59:42,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:42,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:42,788 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-06 17:59:42,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:42,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352337455] [2025-02-06 17:59:42,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352337455] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:42,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:59:42,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:59:42,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408922614] [2025-02-06 17:59:42,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:42,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:59:42,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:42,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:59:42,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:59:42,790 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:42,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:42,811 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2025-02-06 17:59:42,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:59:42,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2025-02-06 17:59:42,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:42,812 INFO L225 Difference]: With dead ends: 100 [2025-02-06 17:59:42,812 INFO L226 Difference]: Without dead ends: 98 [2025-02-06 17:59:42,812 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 [2025-02-06 17:59:42,813 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 2 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:42,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 122 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:42,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2025-02-06 17:59:42,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2025-02-06 17:59:42,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 84 states have (on average 1.2142857142857142) internal successors, (102), 90 states have internal predecessors, (102), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:42,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2025-02-06 17:59:42,819 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 48 [2025-02-06 17:59:42,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:42,819 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2025-02-06 17:59:42,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2025-02-06 17:59:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-06 17:59:42,820 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:42,820 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:42,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 17:59:42,820 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:42,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:42,821 INFO L85 PathProgramCache]: Analyzing trace with hash -252982802, now seen corresponding path program 1 times [2025-02-06 17:59:42,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:42,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594276775] [2025-02-06 17:59:42,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:42,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:42,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 17:59:42,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 17:59:42,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:42,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-06 17:59:42,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:42,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594276775] [2025-02-06 17:59:42,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594276775] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:42,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:59:42,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:59:42,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170260381] [2025-02-06 17:59:42,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:42,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:59:42,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:42,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:59:42,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:59:42,964 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:42,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:42,975 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2025-02-06 17:59:42,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:59:42,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2025-02-06 17:59:42,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:42,976 INFO L225 Difference]: With dead ends: 97 [2025-02-06 17:59:42,976 INFO L226 Difference]: Without dead ends: 96 [2025-02-06 17:59:42,976 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 [2025-02-06 17:59:42,977 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 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 [2025-02-06 17:59:42,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:42,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2025-02-06 17:59:42,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2025-02-06 17:59:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 80 states have (on average 1.2) internal successors, (96), 85 states have internal predecessors, (96), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 105 transitions. [2025-02-06 17:59:42,982 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 105 transitions. Word has length 49 [2025-02-06 17:59:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:42,982 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 105 transitions. [2025-02-06 17:59:42,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:42,982 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2025-02-06 17:59:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-02-06 17:59:42,983 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:42,983 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:42,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 17:59:42,983 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:42,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash 604398341, now seen corresponding path program 1 times [2025-02-06 17:59:42,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:42,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677975979] [2025-02-06 17:59:42,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:42,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:43,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-06 17:59:43,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 17:59:43,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:43,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:43,163 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-06 17:59:43,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:43,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677975979] [2025-02-06 17:59:43,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677975979] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:43,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:59:43,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:59:43,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103058225] [2025-02-06 17:59:43,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:43,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:59:43,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:43,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:59:43,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:59:43,165 INFO L87 Difference]: Start difference. First operand 92 states and 105 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:43,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:43,180 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2025-02-06 17:59:43,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:59:43,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 55 [2025-02-06 17:59:43,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:43,182 INFO L225 Difference]: With dead ends: 97 [2025-02-06 17:59:43,182 INFO L226 Difference]: Without dead ends: 95 [2025-02-06 17:59:43,183 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 [2025-02-06 17:59:43,183 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 1 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:43,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 121 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:43,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2025-02-06 17:59:43,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2025-02-06 17:59:43,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 83 states have (on average 1.2048192771084338) internal successors, (100), 88 states have internal predecessors, (100), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:43,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2025-02-06 17:59:43,195 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 55 [2025-02-06 17:59:43,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:43,195 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2025-02-06 17:59:43,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:43,195 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2025-02-06 17:59:43,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-02-06 17:59:43,196 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:43,196 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:43,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 17:59:43,196 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:43,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:43,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1931493668, now seen corresponding path program 1 times [2025-02-06 17:59:43,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:43,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298260013] [2025-02-06 17:59:43,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:43,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:43,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-06 17:59:43,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 17:59:43,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:43,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-02-06 17:59:43,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:43,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298260013] [2025-02-06 17:59:43,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298260013] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:43,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451131003] [2025-02-06 17:59:43,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:43,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:43,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:43,486 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:43,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 17:59:43,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-06 17:59:43,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 17:59:43,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:43,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:43,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 17:59:43,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-02-06 17:59:43,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 17:59:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-02-06 17:59:43,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451131003] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 17:59:43,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 17:59:43,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 17:59:43,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113049662] [2025-02-06 17:59:43,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 17:59:43,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 17:59:43,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:43,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 17:59:43,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 17:59:43,869 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:43,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:43,906 INFO L93 Difference]: Finished difference Result 165 states and 195 transitions. [2025-02-06 17:59:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 17:59:43,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2025-02-06 17:59:43,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:43,907 INFO L225 Difference]: With dead ends: 165 [2025-02-06 17:59:43,908 INFO L226 Difference]: Without dead ends: 113 [2025-02-06 17:59:43,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 17:59:43,908 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 4 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:43,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 125 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:43,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-02-06 17:59:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2025-02-06 17:59:43,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 106 states have internal predecessors, (118), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:43,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2025-02-06 17:59:43,919 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 55 [2025-02-06 17:59:43,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:43,919 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2025-02-06 17:59:43,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:43,922 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2025-02-06 17:59:43,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-06 17:59:43,923 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:43,923 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:43,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 17:59:44,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-02-06 17:59:44,124 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:44,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:44,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1128204094, now seen corresponding path program 1 times [2025-02-06 17:59:44,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:44,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591322952] [2025-02-06 17:59:44,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:44,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:44,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-06 17:59:44,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-06 17:59:44,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:44,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-06 17:59:44,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:44,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591322952] [2025-02-06 17:59:44,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591322952] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:44,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977134926] [2025-02-06 17:59:44,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:44,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:44,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:44,319 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:44,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 17:59:44,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-06 17:59:44,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-06 17:59:44,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:44,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:44,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 17:59:44,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:44,650 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-06 17:59:44,650 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:59:44,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977134926] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:44,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 17:59:44,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-02-06 17:59:44,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778108812] [2025-02-06 17:59:44,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:44,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 17:59:44,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:44,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 17:59:44,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:59:44,652 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:44,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:44,672 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2025-02-06 17:59:44,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 17:59:44,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 58 [2025-02-06 17:59:44,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:44,673 INFO L225 Difference]: With dead ends: 113 [2025-02-06 17:59:44,673 INFO L226 Difference]: Without dead ends: 112 [2025-02-06 17:59:44,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:59:44,674 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 1 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:44,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 177 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:44,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2025-02-06 17:59:44,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2025-02-06 17:59:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 105 states have internal predecessors, (117), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:44,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 126 transitions. [2025-02-06 17:59:44,683 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 126 transitions. Word has length 58 [2025-02-06 17:59:44,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:44,683 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 126 transitions. [2025-02-06 17:59:44,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 126 transitions. [2025-02-06 17:59:44,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-02-06 17:59:44,685 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:44,685 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 17:59:44,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 17:59:44,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-06 17:59:44,886 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:44,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:44,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1583573982, now seen corresponding path program 1 times [2025-02-06 17:59:44,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:44,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952889420] [2025-02-06 17:59:44,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:44,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:44,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-06 17:59:45,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-06 17:59:45,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:45,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-06 17:59:45,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952889420] [2025-02-06 17:59:45,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952889420] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498328457] [2025-02-06 17:59:45,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:45,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:45,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:45,204 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:45,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 17:59:45,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-06 17:59:45,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-06 17:59:45,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:45,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:45,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 17:59:45,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-06 17:59:45,584 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:59:45,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498328457] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:45,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 17:59:45,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2025-02-06 17:59:45,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433527611] [2025-02-06 17:59:45,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:45,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 17:59:45,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:45,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 17:59:45,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 17:59:45,585 INFO L87 Difference]: Start difference. First operand 112 states and 126 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:45,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:45,622 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2025-02-06 17:59:45,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 17:59:45,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2025-02-06 17:59:45,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:45,623 INFO L225 Difference]: With dead ends: 130 [2025-02-06 17:59:45,624 INFO L226 Difference]: Without dead ends: 112 [2025-02-06 17:59:45,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 17:59:45,625 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 9 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:45,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 212 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2025-02-06 17:59:45,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2025-02-06 17:59:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 105 states have internal predecessors, (116), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2025-02-06 17:59:45,631 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 60 [2025-02-06 17:59:45,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:45,632 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2025-02-06 17:59:45,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:45,632 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2025-02-06 17:59:45,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-02-06 17:59:45,634 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:45,634 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:45,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 17:59:45,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:45,835 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:45,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:45,836 INFO L85 PathProgramCache]: Analyzing trace with hash 614588679, now seen corresponding path program 1 times [2025-02-06 17:59:45,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:45,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657722057] [2025-02-06 17:59:45,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:45,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:45,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-06 17:59:45,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-06 17:59:45,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:45,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-06 17:59:45,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:45,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657722057] [2025-02-06 17:59:45,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657722057] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:45,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716303720] [2025-02-06 17:59:45,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:45,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:45,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:45,975 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:45,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 17:59:46,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-06 17:59:46,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-06 17:59:46,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:46,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:46,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 17:59:46,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-06 17:59:46,279 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 17:59:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-02-06 17:59:46,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716303720] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 17:59:46,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 17:59:46,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-02-06 17:59:46,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043711954] [2025-02-06 17:59:46,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 17:59:46,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 17:59:46,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:46,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 17:59:46,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 17:59:46,299 INFO L87 Difference]: Start difference. First operand 112 states and 125 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:46,320 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2025-02-06 17:59:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 17:59:46,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 59 [2025-02-06 17:59:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:46,321 INFO L225 Difference]: With dead ends: 122 [2025-02-06 17:59:46,322 INFO L226 Difference]: Without dead ends: 121 [2025-02-06 17:59:46,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 17:59:46,322 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:46,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:46,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-02-06 17:59:46,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2025-02-06 17:59:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 110 states have (on average 1.1636363636363636) internal successors, (128), 114 states have internal predecessors, (128), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:46,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 137 transitions. [2025-02-06 17:59:46,327 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 137 transitions. Word has length 59 [2025-02-06 17:59:46,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:46,327 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 137 transitions. [2025-02-06 17:59:46,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:59:46,327 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 137 transitions. [2025-02-06 17:59:46,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-06 17:59:46,327 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:46,328 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:46,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-06 17:59:46,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-06 17:59:46,529 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:46,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:46,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1068267310, now seen corresponding path program 1 times [2025-02-06 17:59:46,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:46,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907366935] [2025-02-06 17:59:46,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:46,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:46,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-06 17:59:46,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-06 17:59:46,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:46,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:46,805 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2025-02-06 17:59:46,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:46,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907366935] [2025-02-06 17:59:46,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907366935] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:46,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962916233] [2025-02-06 17:59:46,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:46,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:46,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:46,809 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:46,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 17:59:47,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-06 17:59:47,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-06 17:59:47,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:47,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:47,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 17:59:47,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:47,155 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2025-02-06 17:59:47,156 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:59:47,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962916233] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:47,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 17:59:47,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2025-02-06 17:59:47,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865506166] [2025-02-06 17:59:47,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:47,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 17:59:47,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:47,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 17:59:47,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-06 17:59:47,158 INFO L87 Difference]: Start difference. First operand 121 states and 137 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 17:59:47,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:47,212 INFO L93 Difference]: Finished difference Result 128 states and 144 transitions. [2025-02-06 17:59:47,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 17:59:47,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2025-02-06 17:59:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:47,214 INFO L225 Difference]: With dead ends: 128 [2025-02-06 17:59:47,214 INFO L226 Difference]: Without dead ends: 123 [2025-02-06 17:59:47,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-06 17:59:47,216 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:47,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 338 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:47,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2025-02-06 17:59:47,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2025-02-06 17:59:47,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 112 states have (on average 1.1607142857142858) internal successors, (130), 116 states have internal predecessors, (130), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:47,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 139 transitions. [2025-02-06 17:59:47,225 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 139 transitions. Word has length 64 [2025-02-06 17:59:47,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:47,226 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 139 transitions. [2025-02-06 17:59:47,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 17:59:47,226 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 139 transitions. [2025-02-06 17:59:47,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-06 17:59:47,227 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:47,227 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2025-02-06 17:59:47,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 17:59:47,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:47,431 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:47,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1043694405, now seen corresponding path program 1 times [2025-02-06 17:59:47,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:47,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561205560] [2025-02-06 17:59:47,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:47,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-06 17:59:47,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-06 17:59:47,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:47,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:47,780 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-02-06 17:59:47,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:47,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561205560] [2025-02-06 17:59:47,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561205560] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:47,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137412067] [2025-02-06 17:59:47,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:47,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:47,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:47,786 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:47,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 17:59:47,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-06 17:59:48,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-06 17:59:48,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:48,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:48,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 17:59:48,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:48,128 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-02-06 17:59:48,129 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:59:48,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137412067] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:48,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 17:59:48,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2025-02-06 17:59:48,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753523279] [2025-02-06 17:59:48,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:48,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 17:59:48,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:48,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 17:59:48,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 17:59:48,130 INFO L87 Difference]: Start difference. First operand 123 states and 139 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 17:59:48,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:48,185 INFO L93 Difference]: Finished difference Result 174 states and 200 transitions. [2025-02-06 17:59:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 17:59:48,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2025-02-06 17:59:48,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:48,186 INFO L225 Difference]: With dead ends: 174 [2025-02-06 17:59:48,186 INFO L226 Difference]: Without dead ends: 123 [2025-02-06 17:59:48,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 17:59:48,187 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 48 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:48,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 207 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:48,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2025-02-06 17:59:48,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2025-02-06 17:59:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 112 states have (on average 1.1517857142857142) internal successors, (129), 116 states have internal predecessors, (129), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2025-02-06 17:59:48,191 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 63 [2025-02-06 17:59:48,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:48,192 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2025-02-06 17:59:48,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 17:59:48,192 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2025-02-06 17:59:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-06 17:59:48,192 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:48,192 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:48,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 17:59:48,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-06 17:59:48,393 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:48,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:48,394 INFO L85 PathProgramCache]: Analyzing trace with hash -412687788, now seen corresponding path program 2 times [2025-02-06 17:59:48,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:48,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927240369] [2025-02-06 17:59:48,394 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 17:59:48,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:48,437 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-02-06 17:59:48,465 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-02-06 17:59:48,466 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 17:59:48,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2025-02-06 17:59:48,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:48,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927240369] [2025-02-06 17:59:48,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927240369] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:48,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236106450] [2025-02-06 17:59:48,663 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 17:59:48,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:48,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:48,665 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:48,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 17:59:48,895 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 73 statements into 2 equivalence classes. [2025-02-06 17:59:49,206 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 73 of 73 statements. [2025-02-06 17:59:49,207 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 17:59:49,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:49,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 1417 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 17:59:49,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:49,260 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2025-02-06 17:59:49,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 17:59:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2025-02-06 17:59:49,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236106450] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 17:59:49,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 17:59:49,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2025-02-06 17:59:49,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666542817] [2025-02-06 17:59:49,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 17:59:49,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 17:59:49,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:49,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 17:59:49,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-02-06 17:59:49,323 INFO L87 Difference]: Start difference. First operand 123 states and 138 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:49,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:49,580 INFO L93 Difference]: Finished difference Result 229 states and 269 transitions. [2025-02-06 17:59:49,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 17:59:49,581 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2025-02-06 17:59:49,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:49,582 INFO L225 Difference]: With dead ends: 229 [2025-02-06 17:59:49,582 INFO L226 Difference]: Without dead ends: 158 [2025-02-06 17:59:49,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 17:59:49,583 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 9 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:49,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 388 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 17:59:49,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2025-02-06 17:59:49,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2025-02-06 17:59:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 148 states have (on average 1.1081081081081081) internal successors, (164), 151 states have internal predecessors, (164), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:49,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 173 transitions. [2025-02-06 17:59:49,590 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 173 transitions. Word has length 73 [2025-02-06 17:59:49,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:49,590 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 173 transitions. [2025-02-06 17:59:49,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:59:49,591 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 173 transitions. [2025-02-06 17:59:49,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-06 17:59:49,591 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:49,591 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2025-02-06 17:59:49,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 17:59:49,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-06 17:59:49,793 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:49,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:49,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1363562195, now seen corresponding path program 1 times [2025-02-06 17:59:49,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:49,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107201605] [2025-02-06 17:59:49,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:49,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:49,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-06 17:59:49,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-06 17:59:49,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:49,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 17:59:49,949 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 17:59:49,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-06 17:59:50,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-06 17:59:50,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:50,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 17:59:50,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 17:59:50,141 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 17:59:50,141 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (33 of 34 remaining) [2025-02-06 17:59:50,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 34 remaining) [2025-02-06 17:59:50,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 34 remaining) [2025-02-06 17:59:50,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 34 remaining) [2025-02-06 17:59:50,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 34 remaining) [2025-02-06 17:59:50,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 34 remaining) [2025-02-06 17:59:50,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 34 remaining) [2025-02-06 17:59:50,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 34 remaining) [2025-02-06 17:59:50,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 34 remaining) [2025-02-06 17:59:50,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 34 remaining) [2025-02-06 17:59:50,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 34 remaining) [2025-02-06 17:59:50,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 34 remaining) [2025-02-06 17:59:50,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 34 remaining) [2025-02-06 17:59:50,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONUNSUPPORTED_FEATURE (12 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 34 remaining) [2025-02-06 17:59:50,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 34 remaining) [2025-02-06 17:59:50,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 17:59:50,149 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:50,224 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 17:59:50,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 05:59:50 BoogieIcfgContainer [2025-02-06 17:59:50,226 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 17:59:50,227 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 17:59:50,227 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 17:59:50,227 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 17:59:50,227 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:59:38" (3/4) ... [2025-02-06 17:59:50,229 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 17:59:50,230 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 17:59:50,231 INFO L158 Benchmark]: Toolchain (without parser) took 13974.38ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 107.8MB in the beginning and 441.9MB in the end (delta: -334.1MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2025-02-06 17:59:50,231 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:59:50,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 828.52ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 90.7MB in the end (delta: 17.0MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. [2025-02-06 17:59:50,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.87ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 83.1MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 17:59:50,232 INFO L158 Benchmark]: Boogie Preprocessor took 115.82ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 75.9MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 17:59:50,233 INFO L158 Benchmark]: IcfgBuilder took 839.07ms. Allocated memory is still 142.6MB. Free memory was 75.9MB in the beginning and 57.1MB in the end (delta: 18.8MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2025-02-06 17:59:50,233 INFO L158 Benchmark]: TraceAbstraction took 12112.03ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 57.1MB in the beginning and 441.9MB in the end (delta: -384.8MB). Peak memory consumption was 264.4MB. Max. memory is 16.1GB. [2025-02-06 17:59:50,234 INFO L158 Benchmark]: Witness Printer took 3.33ms. Allocated memory is still 520.1MB. Free memory was 441.9MB in the beginning and 441.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:59:50,234 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 828.52ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 90.7MB in the end (delta: 17.0MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.87ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 83.1MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.82ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 75.9MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 839.07ms. Allocated memory is still 142.6MB. Free memory was 75.9MB in the beginning and 57.1MB in the end (delta: 18.8MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12112.03ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 57.1MB in the beginning and 441.9MB in the end (delta: -384.8MB). Peak memory consumption was 264.4MB. Max. memory is 16.1GB. * Witness Printer took 3.33ms. Allocated memory is still 520.1MB. Free memory was 441.9MB in the beginning and 441.9MB in the end (delta: 44.5kB). There was no memory consumed. 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 - UnprovableResult [Line: 2339]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of fflush at line 2339. Possible FailurePath: [L2229] static const char *applet_name; [L2230] static signed int bb_errno_location; [L2231] static signed int * const bb_errno = &bb_errno_location; [L2232] static struct __jmp_buf_tag die_jmp[1l]; [L2233] static signed int die_sleep; [L2234] static signed char logmode = (signed char)1; [L2235] static const char *msg_eol = "\n"; [L2236] static unsigned char xfunc_error_retval = (unsigned char)1; [L2426] static struct utmp dummy_utmp; VAL [applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2489] char *a = malloc(11); [L2490] a[10] = 0 [L2491] int i=0; VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=0, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=0, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=1, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=1, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=2, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=2, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=3, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=3, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=4, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=4, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=5, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=5, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=6, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=6, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=7, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=7, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=8, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=8, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=9, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND TRUE i<10 [L2492] a[i]=__VERIFIER_nondet_char() VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=9, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] ++i VAL [a={-1:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=10, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2491] COND FALSE !(i<10) [L2493] applet_name = a [L2494] bb_errno_location = __VERIFIER_nondet_int() [L2495] optind = 1 [L2496] int argc = __VERIFIER_nondet_int(); [L2497] CALL assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [\old(cond)=1, applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L9] COND FALSE !(!cond) VAL [\old(cond)=1, applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2497] RET assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [applet_name={-1:0}, argc=1, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2498] EXPR argc+1 [L2498] char **argv=malloc((argc+1)*sizeof(char*)); [L2499] EXPR argc+1 [L2499] char **mem_track=malloc((argc+1)*sizeof(char*)); [L2500] argv[argc]=0 [L2501] int i=0; VAL [applet_name={-1:0}, argc=1, argv={-13:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, i=0, logmode=1, mem_track={-14:0}, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2501] COND TRUE i 0 && size < bufsize) VAL [\old(cond)=1, applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L9] COND FALSE !(!cond) VAL [\old(cond)=1, applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2414] RET assume_abort_if_not(size > 0 && size < bufsize) VAL [applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, buf={331:0}, bufsize=64, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, size=1, xfunc_error_retval=1] [L2415] int i = 0; VAL [applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, buf={331:0}, bufsize=64, die_sleep=0, dummy_utmp={8:0}, i=0, logmode=1, msg_eol={3:0}, optind=1, size=1, xfunc_error_retval=1] [L2415] COND TRUE i < size [L2416] buf[i] = __VERIFIER_nondet_char() [L2415] ++i VAL [applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, buf={331:0}, bufsize=64, die_sleep=0, dummy_utmp={8:0}, i=1, logmode=1, msg_eol={3:0}, optind=1, size=1, xfunc_error_retval=1] [L2415] COND FALSE !(i < size) [L2418] buf[size] = '\0' [L2419] return 0; VAL [\result=0, applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, bufsize=64, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2369] RET, EXPR getlogin_r(buf, sizeof(char [64l]) ) [L2369] return_value_getlogin_r$2=getlogin_r(buf, sizeof(char [64l]) ) [L2370] COND TRUE return_value_getlogin_r$2 == 0 [L2373] signed int return_value_fflush_all$1; VAL [applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2374] CALL fflush_all() VAL [applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2338] signed int return_value_fflush$1; VAL [applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2339] fflush((struct _IO_FILE *)((void *)0)) VAL [applet_name={-1:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_sleep=0, dummy_utmp={8:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] - UnprovableResult [Line: 2510]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2510]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2355]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2355]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2298]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2298]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2325]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2325]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2318]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2318]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2315]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2315]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2309]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2309]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2308]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2308]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2306]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2306]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2290]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2290]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 2415]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2415]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2501]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2501]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2506]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2506]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2499]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2499]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2498]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2498]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2491]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2491]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 161 locations, 34 error locations. Started 1 CEGAR loops. OverallTime: 12.0s, OverallIterations: 19, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 3276 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2145 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 601 IncrementalHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 1131 mSDtfsCounter, 601 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 789 GetRequests, 693 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=0, InterpolantAutomatonStates: 109, 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, 18 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1298 NumberOfCodeBlocks, 1286 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1397 ConstructedInterpolants, 0 QuantifiedInterpolants, 1927 SizeOfPredicates, 1 NumberOfNonLiveVariables, 12732 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 34 InterpolantComputations, 13 PerfectInterpolantSequences, 3269/3450 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-06 17:59:50,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/busybox-1.22.0/logname-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 c974ed4f1d4c3d5b838cbfadb19eec8f0977d5398d9ade006a615b896bd7b5af --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 17:59:52,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 17:59:52,276 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-02-06 17:59:52,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 17:59:52,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 17:59:52,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-02-06 17:59:52,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 17:59:52,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 17:59:52,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 17:59:52,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 17:59:52,337 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 17:59:52,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 17:59:52,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 17:59:52,337 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 17:59:52,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 17:59:52,337 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 17:59:52,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 17:59:52,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 17:59:52,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 17:59:52,338 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:59:52,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 17:59:52,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 17:59:52,339 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 17:59:52,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 17:59:52,339 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 17:59:52,339 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 17:59:52,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 17:59:52,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 17:59:52,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 17:59:52,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 17:59:52,339 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-jdk21/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 -> c974ed4f1d4c3d5b838cbfadb19eec8f0977d5398d9ade006a615b896bd7b5af [2025-02-06 17:59:52,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 17:59:52,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 17:59:52,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 17:59:52,596 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 17:59:52,597 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 17:59:52,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/logname-1.i [2025-02-06 17:59:53,824 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1346aa46c/255df3c051e740208d938006f2dcc316/FLAGacad368c6 [2025-02-06 17:59:54,195 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 17:59:54,197 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/logname-1.i [2025-02-06 17:59:54,225 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1346aa46c/255df3c051e740208d938006f2dcc316/FLAGacad368c6 [2025-02-06 17:59:54,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1346aa46c/255df3c051e740208d938006f2dcc316 [2025-02-06 17:59:54,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 17:59:54,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 17:59:54,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 17:59:54,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 17:59:54,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 17:59:54,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:59:54" (1/1) ... [2025-02-06 17:59:54,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533a4364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:54, skipping insertion in model container [2025-02-06 17:59:54,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:59:54" (1/1) ... [2025-02-06 17:59:54,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 17:59:55,100 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,105 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,110 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,111 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,116 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,119 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,120 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,124 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,125 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,126 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,127 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,136 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,143 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,146 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,170 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,191 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 17:59:55,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:59:55,243 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 17:59:55,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:59:55,523 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-02-06 17:59:55,528 INFO L204 MainTranslator]: Completed translation [2025-02-06 17:59:55,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55 WrapperNode [2025-02-06 17:59:55,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 17:59:55,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 17:59:55,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 17:59:55,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 17:59:55,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,613 INFO L138 Inliner]: procedures = 605, calls = 490, calls flagged for inlining = 16, calls inlined = 14, statements flattened = 781 [2025-02-06 17:59:55,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 17:59:55,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 17:59:55,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 17:59:55,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 17:59:55,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,656 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-02-06 17:59:55,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,697 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 17:59:55,738 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 17:59:55,738 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 17:59:55,738 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 17:59:55,739 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (1/1) ... [2025-02-06 17:59:55,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:59:55,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:55,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 17:59:55,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 17:59:55,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 17:59:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2025-02-06 17:59:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-02-06 17:59:55,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 17:59:55,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-02-06 17:59:55,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-02-06 17:59:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 17:59:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2025-02-06 17:59:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2025-02-06 17:59:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2025-02-06 17:59:56,181 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 17:59:56,183 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 17:59:57,023 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2406: havoc getlogin_r_~ret~0#1; [2025-02-06 17:59:57,023 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2371: havoc __main_~return_value_fflush_all$1~0#1; [2025-02-06 17:59:57,094 INFO L? ?]: Removed 202 outVars from TransFormulas that were not future-live. [2025-02-06 17:59:57,094 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 17:59:57,105 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 17:59:57,107 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 17:59:57,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:59:57 BoogieIcfgContainer [2025-02-06 17:59:57,107 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 17:59:57,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 17:59:57,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 17:59:57,113 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 17:59:57,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:59:54" (1/3) ... [2025-02-06 17:59:57,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326d4f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:59:57, skipping insertion in model container [2025-02-06 17:59:57,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:59:55" (2/3) ... [2025-02-06 17:59:57,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326d4f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:59:57, skipping insertion in model container [2025-02-06 17:59:57,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:59:57" (3/3) ... [2025-02-06 17:59:57,117 INFO L128 eAbstractionObserver]: Analyzing ICFG logname-1.i [2025-02-06 17:59:57,127 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 17:59:57,129 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG logname-1.i that has 4 procedures, 158 locations, 1 initial locations, 12 loop locations, and 34 error locations. [2025-02-06 17:59:57,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 17:59:57,185 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;@712ab10c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 17:59:57,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2025-02-06 17:59:57,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 110 states have (on average 1.6090909090909091) internal successors, (177), 144 states have internal predecessors, (177), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 17:59:57,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 17:59:57,194 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:57,195 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 17:59:57,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:57,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:57,199 INFO L85 PathProgramCache]: Analyzing trace with hash 7233215, now seen corresponding path program 1 times [2025-02-06 17:59:57,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 17:59:57,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740549020] [2025-02-06 17:59:57,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:57,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:57,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:57,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:57,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 17:59:57,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 17:59:57,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 17:59:57,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:57,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:57,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 17:59:57,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:57,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:57,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:59:57,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 17:59:57,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740549020] [2025-02-06 17:59:57,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740549020] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:57,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:59:57,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 17:59:57,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823019332] [2025-02-06 17:59:57,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:57,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 17:59:57,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 17:59:57,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 17:59:57,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 17:59:57,902 INFO L87 Difference]: Start difference. First operand has 158 states, 110 states have (on average 1.6090909090909091) internal successors, (177), 144 states have internal predecessors, (177), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-02-06 17:59:57,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:57,917 INFO L93 Difference]: Finished difference Result 210 states and 274 transitions. [2025-02-06 17:59:57,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 17:59:57,919 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-02-06 17:59:57,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:57,923 INFO L225 Difference]: With dead ends: 210 [2025-02-06 17:59:57,923 INFO L226 Difference]: Without dead ends: 58 [2025-02-06 17:59:57,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 17:59:57,927 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:57,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2025-02-06 17:59:57,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2025-02-06 17:59:57,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 51 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:57,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2025-02-06 17:59:57,951 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 4 [2025-02-06 17:59:57,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:57,951 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2025-02-06 17:59:57,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2025-02-06 17:59:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2025-02-06 17:59:57,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 17:59:57,951 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:57,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 17:59:57,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 17:59:58,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:58,153 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:58,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:58,153 INFO L85 PathProgramCache]: Analyzing trace with hash 224229834, now seen corresponding path program 1 times [2025-02-06 17:59:58,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 17:59:58,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812037617] [2025-02-06 17:59:58,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:58,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:58,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:58,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:58,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 17:59:58,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 17:59:58,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 17:59:58,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:58,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:58,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 17:59:58,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:58,741 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:59:58,742 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 17:59:58,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812037617] [2025-02-06 17:59:58,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812037617] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:58,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:59:58,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:59:58,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686905025] [2025-02-06 17:59:58,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:58,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:59:58,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 17:59:58,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:59:58,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:59:58,745 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-02-06 17:59:58,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:58,778 INFO L93 Difference]: Finished difference Result 114 states and 136 transitions. [2025-02-06 17:59:58,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:59:58,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-02-06 17:59:58,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:58,779 INFO L225 Difference]: With dead ends: 114 [2025-02-06 17:59:58,779 INFO L226 Difference]: Without dead ends: 61 [2025-02-06 17:59:58,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:59:58,780 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 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 [2025-02-06 17:59:58,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:59:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-02-06 17:59:58,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2025-02-06 17:59:58,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 54 states have internal predecessors, (63), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:58,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2025-02-06 17:59:58,791 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 5 [2025-02-06 17:59:58,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:58,791 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2025-02-06 17:59:58,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-02-06 17:59:58,791 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2025-02-06 17:59:58,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 17:59:58,791 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:58,791 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-02-06 17:59:58,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 17:59:58,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:58,992 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 17:59:58,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:58,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1357011137, now seen corresponding path program 1 times [2025-02-06 17:59:58,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 17:59:58,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [544796787] [2025-02-06 17:59:58,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:58,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:58,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:58,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:59:59,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 17:59:59,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 17:59:59,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 17:59:59,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:59,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:59,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 17:59:59,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:59,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:59,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 17:59:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:59,781 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 17:59:59,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544796787] [2025-02-06 17:59:59,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544796787] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 17:59:59,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 17:59:59,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-02-06 17:59:59,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826390728] [2025-02-06 17:59:59,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 17:59:59,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 17:59:59,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 17:59:59,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 17:59:59,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-06 17:59:59,782 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2025-02-06 17:59:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:59,892 INFO L93 Difference]: Finished difference Result 117 states and 141 transitions. [2025-02-06 17:59:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 17:59:59,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-06 17:59:59,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:59,893 INFO L225 Difference]: With dead ends: 117 [2025-02-06 17:59:59,893 INFO L226 Difference]: Without dead ends: 64 [2025-02-06 17:59:59,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-06 17:59:59,894 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:59,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 190 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 17:59:59,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-02-06 17:59:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2025-02-06 17:59:59,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 48 states have (on average 1.3125) internal successors, (63), 54 states have internal predecessors, (63), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 17:59:59,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2025-02-06 17:59:59,899 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 8 [2025-02-06 17:59:59,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:59,899 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2025-02-06 17:59:59,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2025-02-06 17:59:59,899 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2025-02-06 17:59:59,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 17:59:59,900 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:59,900 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:59,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:00:00,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:00,101 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:00,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:00,101 INFO L85 PathProgramCache]: Analyzing trace with hash -83071254, now seen corresponding path program 1 times [2025-02-06 18:00:00,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:00,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995766337] [2025-02-06 18:00:00,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:00,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:00,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:00,106 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:00,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 18:00:00,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 18:00:00,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 18:00:00,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:00,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:00,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:00:00,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:00:00,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:00:00,740 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:00,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995766337] [2025-02-06 18:00:00,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995766337] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:00:00,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:00:00,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:00:00,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321763965] [2025-02-06 18:00:00,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:00:00,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:00:00,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:00,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:00:00,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:00:00,742 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:00,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:00,920 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2025-02-06 18:00:00,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:00:00,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-02-06 18:00:00,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:00,921 INFO L225 Difference]: With dead ends: 61 [2025-02-06 18:00:00,921 INFO L226 Difference]: Without dead ends: 59 [2025-02-06 18:00:00,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:00:00,922 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 44 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:00,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 168 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 18:00:00,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2025-02-06 18:00:00,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2025-02-06 18:00:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 52 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:00,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2025-02-06 18:00:00,930 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 16 [2025-02-06 18:00:00,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:00,930 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2025-02-06 18:00:00,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:00,931 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2025-02-06 18:00:00,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 18:00:00,931 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:00,931 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:00,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 18:00:01,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:01,134 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:01,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:01,134 INFO L85 PathProgramCache]: Analyzing trace with hash -440726400, now seen corresponding path program 1 times [2025-02-06 18:00:01,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:01,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945282063] [2025-02-06 18:00:01,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:01,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:01,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:01,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:01,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 18:00:01,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 18:00:01,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:00:01,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:01,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:01,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:00:01,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:00:01,799 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:00:01,800 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:01,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945282063] [2025-02-06 18:00:01,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945282063] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:00:01,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:00:01,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:00:01,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694873462] [2025-02-06 18:00:01,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:00:01,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:00:01,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:01,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:00:01,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:00:01,801 INFO L87 Difference]: Start difference. First operand 59 states and 70 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:01,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:01,886 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2025-02-06 18:00:01,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:00:01,887 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-02-06 18:00:01,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:01,887 INFO L225 Difference]: With dead ends: 67 [2025-02-06 18:00:01,887 INFO L226 Difference]: Without dead ends: 66 [2025-02-06 18:00:01,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:00:01,888 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 4 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:01,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 119 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:00:01,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2025-02-06 18:00:01,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2025-02-06 18:00:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 58 states have internal predecessors, (70), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:01,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2025-02-06 18:00:01,895 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 22 [2025-02-06 18:00:01,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:01,896 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2025-02-06 18:00:01,896 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:01,896 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2025-02-06 18:00:01,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 18:00:01,896 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:01,896 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:01,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 18:00:02,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:02,101 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:02,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:02,101 INFO L85 PathProgramCache]: Analyzing trace with hash -440721435, now seen corresponding path program 1 times [2025-02-06 18:00:02,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:02,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451040168] [2025-02-06 18:00:02,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:02,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:02,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:02,105 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:02,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 18:00:02,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 18:00:02,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 18:00:02,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:02,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:02,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:00:02,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:00:02,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:00:02,855 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:02,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451040168] [2025-02-06 18:00:02,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451040168] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:00:02,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:00:02,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:00:02,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645255842] [2025-02-06 18:00:02,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:00:02,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:00:02,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:02,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:00:02,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:00:02,861 INFO L87 Difference]: Start difference. First operand 65 states and 79 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:02,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:02,942 INFO L93 Difference]: Finished difference Result 118 states and 145 transitions. [2025-02-06 18:00:02,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:00:02,944 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-02-06 18:00:02,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:02,948 INFO L225 Difference]: With dead ends: 118 [2025-02-06 18:00:02,948 INFO L226 Difference]: Without dead ends: 71 [2025-02-06 18:00:02,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:00:02,949 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:02,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:00:02,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-02-06 18:00:02,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-02-06 18:00:02,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 64 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 85 transitions. [2025-02-06 18:00:02,962 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 85 transitions. Word has length 22 [2025-02-06 18:00:02,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:02,966 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 85 transitions. [2025-02-06 18:00:02,966 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:02,966 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 85 transitions. [2025-02-06 18:00:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-06 18:00:02,966 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:02,966 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:03,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 18:00:03,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:03,168 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:03,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:03,169 INFO L85 PathProgramCache]: Analyzing trace with hash 182909622, now seen corresponding path program 1 times [2025-02-06 18:00:03,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:03,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728644381] [2025-02-06 18:00:03,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:03,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:03,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:03,174 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:03,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 18:00:03,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 18:00:04,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 18:00:04,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:04,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:04,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 18:00:04,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:00:04,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:00:04,248 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:00:04,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:04,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728644381] [2025-02-06 18:00:04,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728644381] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:00:04,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 18:00:04,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-02-06 18:00:04,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146035179] [2025-02-06 18:00:04,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 18:00:04,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:00:04,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:04,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:00:04,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:00:04,250 INFO L87 Difference]: Start difference. First operand 71 states and 85 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:04,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:04,499 INFO L93 Difference]: Finished difference Result 128 states and 158 transitions. [2025-02-06 18:00:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:00:04,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2025-02-06 18:00:04,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:04,501 INFO L225 Difference]: With dead ends: 128 [2025-02-06 18:00:04,501 INFO L226 Difference]: Without dead ends: 78 [2025-02-06 18:00:04,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:00:04,502 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:04,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 18:00:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-02-06 18:00:04,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2025-02-06 18:00:04,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 65 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2025-02-06 18:00:04,521 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 25 [2025-02-06 18:00:04,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:04,521 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2025-02-06 18:00:04,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2025-02-06 18:00:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-02-06 18:00:04,522 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:04,522 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:04,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 18:00:04,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:04,723 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:04,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:04,723 INFO L85 PathProgramCache]: Analyzing trace with hash -443444988, now seen corresponding path program 1 times [2025-02-06 18:00:04,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:04,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473587517] [2025-02-06 18:00:04,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:04,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:04,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:04,727 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:04,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 18:00:04,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-06 18:00:05,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 18:00:05,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:05,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:05,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 18:00:05,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 18:00:05,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:00:05,380 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:05,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473587517] [2025-02-06 18:00:05,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473587517] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:00:05,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:00:05,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:00:05,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138466325] [2025-02-06 18:00:05,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:00:05,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:00:05,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:05,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:00:05,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:00:05,382 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 18:00:05,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:05,407 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2025-02-06 18:00:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:00:05,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2025-02-06 18:00:05,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:05,409 INFO L225 Difference]: With dead ends: 76 [2025-02-06 18:00:05,409 INFO L226 Difference]: Without dead ends: 75 [2025-02-06 18:00:05,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:00:05,409 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 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 [2025-02-06 18:00:05,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 18:00:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2025-02-06 18:00:05,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2025-02-06 18:00:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 68 states have internal predecessors, (80), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2025-02-06 18:00:05,414 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 32 [2025-02-06 18:00:05,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:05,414 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2025-02-06 18:00:05,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 18:00:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2025-02-06 18:00:05,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-02-06 18:00:05,415 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:05,415 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:05,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 18:00:05,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:05,616 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:05,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:05,616 INFO L85 PathProgramCache]: Analyzing trace with hash 649895005, now seen corresponding path program 1 times [2025-02-06 18:00:05,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:05,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16669351] [2025-02-06 18:00:05,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:05,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:05,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:05,619 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:05,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 18:00:05,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-06 18:00:06,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-06 18:00:06,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:06,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:06,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 18:00:06,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 18:00:06,407 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:00:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 18:00:06,461 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:06,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16669351] [2025-02-06 18:00:06,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16669351] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:00:06,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 18:00:06,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-02-06 18:00:06,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190387839] [2025-02-06 18:00:06,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 18:00:06,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:00:06,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:06,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:00:06,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:00:06,462 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 18:00:06,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:06,566 INFO L93 Difference]: Finished difference Result 82 states and 101 transitions. [2025-02-06 18:00:06,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:00:06,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2025-02-06 18:00:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:06,571 INFO L225 Difference]: With dead ends: 82 [2025-02-06 18:00:06,571 INFO L226 Difference]: Without dead ends: 81 [2025-02-06 18:00:06,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:00:06,572 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:06,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:00:06,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-02-06 18:00:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2025-02-06 18:00:06,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 64 states have internal predecessors, (75), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:06,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2025-02-06 18:00:06,582 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 35 [2025-02-06 18:00:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:06,582 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2025-02-06 18:00:06,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 18:00:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2025-02-06 18:00:06,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-02-06 18:00:06,587 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:06,587 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:06,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 18:00:06,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:06,788 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:06,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:06,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1616883312, now seen corresponding path program 1 times [2025-02-06 18:00:06,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:06,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604158939] [2025-02-06 18:00:06,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:06,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:06,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:06,791 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:06,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 18:00:06,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 18:00:07,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 18:00:07,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:07,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:07,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:00:07,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:00:07,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:00:07,535 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:07,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604158939] [2025-02-06 18:00:07,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604158939] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:00:07,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:00:07,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 18:00:07,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050440625] [2025-02-06 18:00:07,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:00:07,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:00:07,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:07,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:00:07,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:00:07,537 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 18:00:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:07,832 INFO L93 Difference]: Finished difference Result 107 states and 127 transitions. [2025-02-06 18:00:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:00:07,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2025-02-06 18:00:07,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:07,832 INFO L225 Difference]: With dead ends: 107 [2025-02-06 18:00:07,833 INFO L226 Difference]: Without dead ends: 71 [2025-02-06 18:00:07,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:00:07,833 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 46 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:07,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 200 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 18:00:07,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-02-06 18:00:07,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-02-06 18:00:07,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 64 states have internal predecessors, (74), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:07,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2025-02-06 18:00:07,837 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 36 [2025-02-06 18:00:07,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:07,837 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2025-02-06 18:00:07,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 18:00:07,837 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2025-02-06 18:00:07,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-02-06 18:00:07,838 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:07,838 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:07,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 18:00:08,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:08,039 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:08,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:08,040 INFO L85 PathProgramCache]: Analyzing trace with hash 75177784, now seen corresponding path program 1 times [2025-02-06 18:00:08,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:08,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965380643] [2025-02-06 18:00:08,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:08,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:08,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:08,043 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:08,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 18:00:08,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 18:00:08,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 18:00:08,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:08,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:08,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 18:00:08,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:08,829 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 18:00:08,829 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:00:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 18:00:08,899 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:08,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965380643] [2025-02-06 18:00:08,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965380643] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:00:08,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 18:00:08,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-02-06 18:00:08,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805047476] [2025-02-06 18:00:08,900 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 18:00:08,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:00:08,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:08,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:00:08,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:00:08,901 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:09,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:09,112 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2025-02-06 18:00:09,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:00:09,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2025-02-06 18:00:09,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:09,114 INFO L225 Difference]: With dead ends: 92 [2025-02-06 18:00:09,114 INFO L226 Difference]: Without dead ends: 91 [2025-02-06 18:00:09,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:00:09,115 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:09,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 18:00:09,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2025-02-06 18:00:09,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 61. [2025-02-06 18:00:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 54 states have internal predecessors, (63), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2025-02-06 18:00:09,124 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 38 [2025-02-06 18:00:09,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:09,124 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2025-02-06 18:00:09,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 18:00:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2025-02-06 18:00:09,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-02-06 18:00:09,125 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:09,125 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:09,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-06 18:00:09,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:09,332 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:09,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:09,332 INFO L85 PathProgramCache]: Analyzing trace with hash 838715880, now seen corresponding path program 1 times [2025-02-06 18:00:09,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:09,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090629751] [2025-02-06 18:00:09,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:09,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:09,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:09,335 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:09,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 18:00:09,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 18:00:09,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 18:00:09,940 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:09,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:10,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:00:10,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:10,069 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 18:00:10,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:00:10,069 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:10,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090629751] [2025-02-06 18:00:10,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090629751] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:00:10,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:00:10,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 18:00:10,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654163319] [2025-02-06 18:00:10,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:00:10,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:00:10,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:10,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:00:10,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:00:10,070 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 18:00:10,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:10,144 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2025-02-06 18:00:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:00:10,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2025-02-06 18:00:10,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:10,145 INFO L225 Difference]: With dead ends: 82 [2025-02-06 18:00:10,145 INFO L226 Difference]: Without dead ends: 64 [2025-02-06 18:00:10,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:00:10,145 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 6 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:10,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 251 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:00:10,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-02-06 18:00:10,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2025-02-06 18:00:10,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2025-02-06 18:00:10,150 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 46 [2025-02-06 18:00:10,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:10,150 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2025-02-06 18:00:10,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 18:00:10,150 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2025-02-06 18:00:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 18:00:10,151 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:10,151 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:10,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-06 18:00:10,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:10,351 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:10,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:10,352 INFO L85 PathProgramCache]: Analyzing trace with hash 306576646, now seen corresponding path program 1 times [2025-02-06 18:00:10,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:10,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150529032] [2025-02-06 18:00:10,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:10,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:10,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:10,355 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:10,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 18:00:10,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 18:00:10,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 18:00:10,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:10,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:11,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:00:11,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:11,116 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-06 18:00:11,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:00:11,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:11,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150529032] [2025-02-06 18:00:11,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150529032] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:00:11,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:00:11,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:00:11,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999386156] [2025-02-06 18:00:11,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:00:11,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:00:11,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:11,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:00:11,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:00:11,121 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 18:00:11,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:11,218 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2025-02-06 18:00:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:00:11,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2025-02-06 18:00:11,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:11,220 INFO L225 Difference]: With dead ends: 69 [2025-02-06 18:00:11,220 INFO L226 Difference]: Without dead ends: 64 [2025-02-06 18:00:11,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:00:11,220 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:11,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 320 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:00:11,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-02-06 18:00:11,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2025-02-06 18:00:11,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 57 states have internal predecessors, (66), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:11,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2025-02-06 18:00:11,225 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 50 [2025-02-06 18:00:11,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:11,225 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2025-02-06 18:00:11,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 18:00:11,225 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2025-02-06 18:00:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-06 18:00:11,226 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:11,226 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:11,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-06 18:00:11,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:11,427 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:11,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:11,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1637117679, now seen corresponding path program 1 times [2025-02-06 18:00:11,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:11,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1835495816] [2025-02-06 18:00:11,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:00:11,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:11,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:11,432 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:11,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 18:00:11,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 18:00:12,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 18:00:12,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:00:12,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:12,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:00:12,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:12,500 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 18:00:12,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:00:12,563 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 18:00:12,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835495816] [2025-02-06 18:00:12,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835495816] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:00:12,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 18:00:12,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 18:00:12,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754843641] [2025-02-06 18:00:12,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 18:00:12,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:00:12,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:12,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:00:12,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:00:12,565 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 18:00:12,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:12,693 INFO L93 Difference]: Finished difference Result 131 states and 156 transitions. [2025-02-06 18:00:12,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:00:12,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 49 [2025-02-06 18:00:12,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:12,694 INFO L225 Difference]: With dead ends: 131 [2025-02-06 18:00:12,698 INFO L226 Difference]: Without dead ends: 76 [2025-02-06 18:00:12,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:00:12,699 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 8 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:12,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 234 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 18:00:12,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2025-02-06 18:00:12,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2025-02-06 18:00:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 68 states have (on average 1.1470588235294117) internal successors, (78), 69 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:12,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2025-02-06 18:00:12,728 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 49 [2025-02-06 18:00:12,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:12,728 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2025-02-06 18:00:12,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 18:00:12,728 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2025-02-06 18:00:12,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-06 18:00:12,731 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:12,731 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:00:12,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 18:00:12,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:12,936 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:12,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:12,937 INFO L85 PathProgramCache]: Analyzing trace with hash 762366545, now seen corresponding path program 2 times [2025-02-06 18:00:12,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:12,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423236051] [2025-02-06 18:00:12,938 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:00:12,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:12,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:12,940 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:12,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 18:00:13,121 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 61 statements into 2 equivalence classes. [2025-02-06 18:00:15,617 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 61 of 61 statements. [2025-02-06 18:00:15,617 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:00:15,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:00:15,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:00:15,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:00:15,743 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-02-06 18:00:15,743 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:00:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-06 18:00:15,797 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 18:00:15,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423236051] [2025-02-06 18:00:15,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423236051] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:00:15,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 18:00:15,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 18:00:15,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259616903] [2025-02-06 18:00:15,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 18:00:15,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:00:15,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 18:00:15,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:00:15,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:00:15,799 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 18:00:16,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 18:00:16,087 INFO L93 Difference]: Finished difference Result 137 states and 161 transitions. [2025-02-06 18:00:16,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:00:16,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 61 [2025-02-06 18:00:16,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 18:00:16,089 INFO L225 Difference]: With dead ends: 137 [2025-02-06 18:00:16,089 INFO L226 Difference]: Without dead ends: 88 [2025-02-06 18:00:16,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:00:16,090 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 8 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 18:00:16,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 288 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 18:00:16,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-02-06 18:00:16,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2025-02-06 18:00:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.125) internal successors, (90), 81 states have internal predecessors, (90), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 18:00:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2025-02-06 18:00:16,095 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 61 [2025-02-06 18:00:16,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 18:00:16,096 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2025-02-06 18:00:16,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 18:00:16,096 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2025-02-06 18:00:16,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-06 18:00:16,097 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 18:00:16,097 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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] [2025-02-06 18:00:16,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-06 18:00:16,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:16,297 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-06 18:00:16,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:00:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash 74888593, now seen corresponding path program 3 times [2025-02-06 18:00:16,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 18:00:16,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920370598] [2025-02-06 18:00:16,299 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:00:16,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:00:16,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:00:16,303 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:00:16,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-06 18:00:16,523 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 73 statements into 9 equivalence classes.