./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa61daf361995635005a262e43d385a4b2c55dcce46079a14f1db13e5b0af9cd --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:52:45,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:52:45,192 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 01:52:45,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:52:45,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:52:45,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:52:45,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:52:45,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:52:45,221 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:52:45,221 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:52:45,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:52:45,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:52:45,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:52:45,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:52:45,221 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:52:45,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:52:45,222 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:52:45,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 01:52:45,223 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:52:45,223 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:52:45,223 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:52:45,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:52:45,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:52:45,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:52:45,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:52:45,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:52:45,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:52:45,223 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 01:52:45,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 01:52:45,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:52:45,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:52:45,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:52:45,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:52:45,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:52:45,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:52:45,224 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa61daf361995635005a262e43d385a4b2c55dcce46079a14f1db13e5b0af9cd [2025-03-09 01:52:45,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:52:45,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:52:45,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:52:45,449 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:52:45,449 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:52:45,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2025-03-09 01:52:46,606 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8692396/6b3ad9e4ae834aff88156c35f2cb6239/FLAG13ecb5052 [2025-03-09 01:52:46,861 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:52:46,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_1-1.i [2025-03-09 01:52:46,873 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8692396/6b3ad9e4ae834aff88156c35f2cb6239/FLAG13ecb5052 [2025-03-09 01:52:47,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8692396/6b3ad9e4ae834aff88156c35f2cb6239 [2025-03-09 01:52:47,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:52:47,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:52:47,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:52:47,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:52:47,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:52:47,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e18df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47, skipping insertion in model container [2025-03-09 01:52:47,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,187 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:52:47,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:52:47,464 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:52:47,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:52:47,539 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:52:47,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47 WrapperNode [2025-03-09 01:52:47,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:52:47,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:52:47,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:52:47,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:52:47,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,568 INFO L138 Inliner]: procedures = 164, calls = 70, calls flagged for inlining = 24, calls inlined = 18, statements flattened = 123 [2025-03-09 01:52:47,568 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:52:47,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:52:47,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:52:47,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:52:47,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,579 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,594 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7]. [2025-03-09 01:52:47,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,599 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:52:47,603 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:52:47,604 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:52:47,604 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:52:47,604 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (1/1) ... [2025-03-09 01:52:47,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:52:47,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:52:47,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 01:52:47,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 01:52:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 01:52:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 01:52:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2025-03-09 01:52:47,642 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2025-03-09 01:52:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-03-09 01:52:47,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-03-09 01:52:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 01:52:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 01:52:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 01:52:47,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:52:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 01:52:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 01:52:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 01:52:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 01:52:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 01:52:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-09 01:52:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-09 01:52:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:52:47,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:52:47,760 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:52:47,762 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:52:47,808 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527: havoc #t~malloc12.base, #t~malloc12.offset; [2025-03-09 01:52:47,978 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L690: havoc ldv_kref_put_#t~ret34#1; [2025-03-09 01:52:48,004 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2025-03-09 01:52:48,004 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:52:48,011 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:52:48,011 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:52:48,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:52:48 BoogieIcfgContainer [2025-03-09 01:52:48,011 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:52:48,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:52:48,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:52:48,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:52:48,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:52:47" (1/3) ... [2025-03-09 01:52:48,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a84317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:52:48, skipping insertion in model container [2025-03-09 01:52:48,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:52:47" (2/3) ... [2025-03-09 01:52:48,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a84317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:52:48, skipping insertion in model container [2025-03-09 01:52:48,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:52:48" (3/3) ... [2025-03-09 01:52:48,019 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1-1.i [2025-03-09 01:52:48,029 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:52:48,030 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test22_1-1.i that has 3 procedures, 48 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-03-09 01:52:48,072 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:52:48,081 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;@775b471f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:52:48,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-09 01:52:48,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 44 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-09 01:52:48,088 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:48,088 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:48,088 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:48,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:48,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2092072807, now seen corresponding path program 1 times [2025-03-09 01:52:48,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:48,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444897518] [2025-03-09 01:52:48,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:48,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:48,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 01:52:48,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 01:52:48,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:48,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:48,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:48,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:48,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444897518] [2025-03-09 01:52:48,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444897518] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:48,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:52:48,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:52:48,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20022536] [2025-03-09 01:52:48,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:48,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:52:48,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:48,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:52:48,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:52:48,308 INFO L87 Difference]: Start difference. First operand has 48 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 44 states have internal predecessors, (52), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2025-03-09 01:52:48,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:48,346 INFO L93 Difference]: Finished difference Result 88 states and 104 transitions. [2025-03-09 01:52:48,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 01:52:48,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 [2025-03-09 01:52:48,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:48,352 INFO L225 Difference]: With dead ends: 88 [2025-03-09 01:52:48,352 INFO L226 Difference]: Without dead ends: 47 [2025-03-09 01:52:48,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:52:48,358 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 10 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 204 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 [2025-03-09 01:52:48,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 204 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:52:48,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-03-09 01:52:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2025-03-09 01:52:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 30 states have (on average 1.3) internal successors, (39), 34 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 01:52:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2025-03-09 01:52:48,407 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 12 [2025-03-09 01:52:48,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:48,407 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2025-03-09 01:52:48,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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) [2025-03-09 01:52:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2025-03-09 01:52:48,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-09 01:52:48,408 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:48,408 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:48,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:52:48,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:48,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:48,409 INFO L85 PathProgramCache]: Analyzing trace with hash -349262472, now seen corresponding path program 1 times [2025-03-09 01:52:48,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:48,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165128236] [2025-03-09 01:52:48,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:48,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:48,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 01:52:48,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 01:52:48,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:48,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:48,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:48,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:48,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165128236] [2025-03-09 01:52:48,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165128236] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:48,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:52:48,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:52:48,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739519254] [2025-03-09 01:52:48,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:48,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:52:48,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:48,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:52:48,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:52:48,547 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2025-03-09 01:52:48,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:48,569 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2025-03-09 01:52:48,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:52:48,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 [2025-03-09 01:52:48,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:48,571 INFO L225 Difference]: With dead ends: 55 [2025-03-09 01:52:48,571 INFO L226 Difference]: Without dead ends: 42 [2025-03-09 01:52:48,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:52:48,571 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 1 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 106 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 [2025-03-09 01:52:48,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 106 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:52:48,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2025-03-09 01:52:48,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2025-03-09 01:52:48,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 32 states have (on average 1.28125) internal successors, (41), 36 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 01:52:48,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2025-03-09 01:52:48,578 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 12 [2025-03-09 01:52:48,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:48,579 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2025-03-09 01:52:48,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2025-03-09 01:52:48,579 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2025-03-09 01:52:48,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-09 01:52:48,579 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:48,579 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:48,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:52:48,580 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:48,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:48,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1828203537, now seen corresponding path program 1 times [2025-03-09 01:52:48,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:48,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623920224] [2025-03-09 01:52:48,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:48,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:48,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 01:52:48,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 01:52:48,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:48,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:48,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:48,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623920224] [2025-03-09 01:52:48,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623920224] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:48,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:52:48,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:52:48,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230576026] [2025-03-09 01:52:48,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:48,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:52:48,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:48,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:52:48,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:52:48,720 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 01:52:48,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:48,743 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2025-03-09 01:52:48,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 01:52:48,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 15 [2025-03-09 01:52:48,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:48,745 INFO L225 Difference]: With dead ends: 48 [2025-03-09 01:52:48,745 INFO L226 Difference]: Without dead ends: 39 [2025-03-09 01:52:48,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:52:48,746 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:52:48,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:52:48,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-03-09 01:52:48,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2025-03-09 01:52:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 31 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:48,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2025-03-09 01:52:48,752 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 15 [2025-03-09 01:52:48,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:48,753 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2025-03-09 01:52:48,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-09 01:52:48,753 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2025-03-09 01:52:48,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-09 01:52:48,753 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:48,753 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:48,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 01:52:48,753 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:48,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:48,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1038982758, now seen corresponding path program 1 times [2025-03-09 01:52:48,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:48,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433595124] [2025-03-09 01:52:48,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:48,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:48,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 01:52:48,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 01:52:48,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:48,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:48,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:48,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:48,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433595124] [2025-03-09 01:52:48,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433595124] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:48,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:52:48,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 01:52:48,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122019190] [2025-03-09 01:52:48,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:48,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:52:48,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:48,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:52:48,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:52:48,829 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2025-03-09 01:52:48,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:48,859 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2025-03-09 01:52:48,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:52:48,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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 [2025-03-09 01:52:48,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:48,860 INFO L225 Difference]: With dead ends: 63 [2025-03-09 01:52:48,860 INFO L226 Difference]: Without dead ends: 47 [2025-03-09 01:52:48,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:52:48,861 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:52:48,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 171 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:52:48,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-03-09 01:52:48,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2025-03-09 01:52:48,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 37 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 01:52:48,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2025-03-09 01:52:48,865 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 16 [2025-03-09 01:52:48,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:48,865 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2025-03-09 01:52:48,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 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) [2025-03-09 01:52:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2025-03-09 01:52:48,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-09 01:52:48,867 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:48,867 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:48,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:52:48,867 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:48,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:48,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1168065477, now seen corresponding path program 1 times [2025-03-09 01:52:48,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:48,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336817587] [2025-03-09 01:52:48,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:48,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:48,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 01:52:48,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 01:52:48,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:48,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:48,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:48,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336817587] [2025-03-09 01:52:48,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336817587] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:48,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:52:48,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:52:48,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115425590] [2025-03-09 01:52:48,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:48,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:52:48,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:48,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:52:48,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:52:48,943 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-03-09 01:52:48,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:48,957 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2025-03-09 01:52:48,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 01:52:48,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 [2025-03-09 01:52:48,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:48,958 INFO L225 Difference]: With dead ends: 65 [2025-03-09 01:52:48,958 INFO L226 Difference]: Without dead ends: 35 [2025-03-09 01:52:48,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:52:48,959 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 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 [2025-03-09 01:52:48,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:52:48,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-09 01:52:48,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-03-09 01:52:48,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 31 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2025-03-09 01:52:48,962 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 16 [2025-03-09 01:52:48,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:48,962 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2025-03-09 01:52:48,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-03-09 01:52:48,962 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2025-03-09 01:52:48,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-09 01:52:48,963 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:48,963 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:48,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 01:52:48,963 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:48,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash -256167901, now seen corresponding path program 1 times [2025-03-09 01:52:48,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420183799] [2025-03-09 01:52:48,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:48,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:48,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 01:52:48,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 01:52:48,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:48,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:49,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:49,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420183799] [2025-03-09 01:52:49,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420183799] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:49,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:52:49,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 01:52:49,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392218466] [2025-03-09 01:52:49,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:49,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 01:52:49,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:49,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 01:52:49,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:52:49,061 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 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) [2025-03-09 01:52:49,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:49,096 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2025-03-09 01:52:49,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:52:49,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 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 18 [2025-03-09 01:52:49,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:49,097 INFO L225 Difference]: With dead ends: 52 [2025-03-09 01:52:49,097 INFO L226 Difference]: Without dead ends: 35 [2025-03-09 01:52:49,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-09 01:52:49,097 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:52:49,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 165 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:52:49,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-09 01:52:49,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-03-09 01:52:49,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:49,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2025-03-09 01:52:49,102 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 18 [2025-03-09 01:52:49,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:49,102 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2025-03-09 01:52:49,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 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) [2025-03-09 01:52:49,102 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2025-03-09 01:52:49,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-09 01:52:49,103 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:49,103 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:49,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 01:52:49,103 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:49,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1447178, now seen corresponding path program 1 times [2025-03-09 01:52:49,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:49,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547129741] [2025-03-09 01:52:49,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:49,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:49,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 01:52:49,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 01:52:49,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:49,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:49,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:49,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547129741] [2025-03-09 01:52:49,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547129741] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:49,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:52:49,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:52:49,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070520373] [2025-03-09 01:52:49,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:49,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:52:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:49,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:52:49,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:52:49,184 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:49,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:49,193 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2025-03-09 01:52:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:52:49,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2025-03-09 01:52:49,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:49,194 INFO L225 Difference]: With dead ends: 61 [2025-03-09 01:52:49,194 INFO L226 Difference]: Without dead ends: 36 [2025-03-09 01:52:49,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:52:49,194 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:52:49,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:52:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-03-09 01:52:49,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-03-09 01:52:49,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 31 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:49,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2025-03-09 01:52:49,198 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 23 [2025-03-09 01:52:49,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:49,198 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2025-03-09 01:52:49,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2025-03-09 01:52:49,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-09 01:52:49,199 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:49,199 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:49,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 01:52:49,199 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:49,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:49,199 INFO L85 PathProgramCache]: Analyzing trace with hash -120632033, now seen corresponding path program 1 times [2025-03-09 01:52:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:49,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320082787] [2025-03-09 01:52:49,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:49,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:49,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 01:52:49,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 01:52:49,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:49,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:49,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:49,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320082787] [2025-03-09 01:52:49,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320082787] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:52:49,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745855668] [2025-03-09 01:52:49,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:49,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:52:49,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:52:49,337 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:52:49,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 01:52:49,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 01:52:49,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 01:52:49,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:49,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:49,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 74 conjuncts are in the unsatisfiable core [2025-03-09 01:52:49,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:52:49,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-09 01:52:49,587 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_LDV_INIT_LIST_HEAD_~list.offset_6 Int)) (and (<= v_LDV_INIT_LIST_HEAD_~list.offset_6 |c_LDV_INIT_LIST_HEAD_#in~list.offset|) (= |c_#memory_int#1| (store |c_old(#memory_int#1)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int#1| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ v_LDV_INIT_LIST_HEAD_~list.offset_6 4))) (store (store (select |c_old(#memory_int#1)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) v_LDV_INIT_LIST_HEAD_~list.offset_6 (select .cse0 v_LDV_INIT_LIST_HEAD_~list.offset_6)) .cse1 (select .cse0 .cse1))))))) is different from true [2025-03-09 01:52:49,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:52:49,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:52:49,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-09 01:52:49,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 01:52:49,673 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:52:49,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745855668] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:49,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 01:52:49,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 13 [2025-03-09 01:52:49,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88485003] [2025-03-09 01:52:49,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:49,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 01:52:49,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:49,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 01:52:49,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=109, Unknown=1, NotChecked=20, Total=156 [2025-03-09 01:52:49,675 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:49,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:49,782 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2025-03-09 01:52:49,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 01:52:49,783 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2025-03-09 01:52:49,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:49,783 INFO L225 Difference]: With dead ends: 37 [2025-03-09 01:52:49,783 INFO L226 Difference]: Without dead ends: 36 [2025-03-09 01:52:49,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=129, Unknown=1, NotChecked=22, Total=182 [2025-03-09 01:52:49,785 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 8 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 01:52:49,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 123 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 50 Unchecked, 0.1s Time] [2025-03-09 01:52:49,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-03-09 01:52:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2025-03-09 01:52:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 30 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:49,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2025-03-09 01:52:49,789 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2025-03-09 01:52:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:49,789 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2025-03-09 01:52:49,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2025-03-09 01:52:49,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 01:52:49,789 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:49,789 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:49,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 01:52:49,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:52:49,994 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:49,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:49,994 INFO L85 PathProgramCache]: Analyzing trace with hash 555374283, now seen corresponding path program 1 times [2025-03-09 01:52:49,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:49,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561206600] [2025-03-09 01:52:49,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:49,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:50,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 01:52:50,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 01:52:50,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:50,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:50,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:50,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561206600] [2025-03-09 01:52:50,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561206600] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:52:50,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958443347] [2025-03-09 01:52:50,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:50,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:52:50,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:52:50,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:52:50,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 01:52:50,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 01:52:50,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 01:52:50,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:50,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:50,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 74 conjuncts are in the unsatisfiable core [2025-03-09 01:52:50,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:52:50,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-09 01:52:50,297 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_LDV_INIT_LIST_HEAD_~list.offset_9 Int)) (and (= |c_#memory_int#1| (store |c_old(#memory_int#1)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int#1| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ v_LDV_INIT_LIST_HEAD_~list.offset_9 4))) (store (store (select |c_old(#memory_int#1)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) v_LDV_INIT_LIST_HEAD_~list.offset_9 (select .cse0 v_LDV_INIT_LIST_HEAD_~list.offset_9)) .cse1 (select .cse0 .cse1))))) (<= v_LDV_INIT_LIST_HEAD_~list.offset_9 |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2025-03-09 01:52:50,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:52:50,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:52:50,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-09 01:52:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 01:52:50,382 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:52:50,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958443347] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:50,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 01:52:50,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 13 [2025-03-09 01:52:50,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693737684] [2025-03-09 01:52:50,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:50,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 01:52:50,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:50,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 01:52:50,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=109, Unknown=1, NotChecked=20, Total=156 [2025-03-09 01:52:50,383 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:50,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:50,469 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2025-03-09 01:52:50,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 01:52:50,469 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-03-09 01:52:50,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:50,470 INFO L225 Difference]: With dead ends: 36 [2025-03-09 01:52:50,470 INFO L226 Difference]: Without dead ends: 35 [2025-03-09 01:52:50,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=129, Unknown=1, NotChecked=22, Total=182 [2025-03-09 01:52:50,470 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 01:52:50,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 49 Unchecked, 0.1s Time] [2025-03-09 01:52:50,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-09 01:52:50,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2025-03-09 01:52:50,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:50,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2025-03-09 01:52:50,473 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 25 [2025-03-09 01:52:50,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:50,473 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2025-03-09 01:52:50,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:50,474 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2025-03-09 01:52:50,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-09 01:52:50,474 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:50,474 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:50,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 01:52:50,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-03-09 01:52:50,678 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:50,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:50,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1139480330, now seen corresponding path program 1 times [2025-03-09 01:52:50,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:50,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797868706] [2025-03-09 01:52:50,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:50,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:50,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-09 01:52:50,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-09 01:52:50,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:50,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 01:52:50,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:50,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797868706] [2025-03-09 01:52:50,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797868706] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:52:50,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:52:50,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 01:52:50,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357841387] [2025-03-09 01:52:50,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:52:50,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 01:52:50,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:50,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 01:52:50,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:52:50,776 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:50,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:50,804 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2025-03-09 01:52:50,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:52:50,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2025-03-09 01:52:50,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:50,805 INFO L225 Difference]: With dead ends: 41 [2025-03-09 01:52:50,805 INFO L226 Difference]: Without dead ends: 34 [2025-03-09 01:52:50,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:52:50,806 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 5 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:52:50,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 138 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:52:50,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-03-09 01:52:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-03-09 01:52:50,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2025-03-09 01:52:50,809 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 27 [2025-03-09 01:52:50,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:50,809 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2025-03-09 01:52:50,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:50,809 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2025-03-09 01:52:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-09 01:52:50,810 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:50,810 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:50,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 01:52:50,810 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:50,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:50,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1105263226, now seen corresponding path program 1 times [2025-03-09 01:52:50,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:50,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335387043] [2025-03-09 01:52:50,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:50,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:50,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-09 01:52:50,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-09 01:52:50,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:50,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:50,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:50,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335387043] [2025-03-09 01:52:50,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335387043] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:52:50,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924442335] [2025-03-09 01:52:50,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:50,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:52:50,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:52:50,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:52:50,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 01:52:51,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-09 01:52:51,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-09 01:52:51,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:51,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:51,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 123 conjuncts are in the unsatisfiable core [2025-03-09 01:52:51,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:52:51,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-09 01:52:51,175 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_LDV_INIT_LIST_HEAD_~list.offset_13 Int)) (and (<= v_LDV_INIT_LIST_HEAD_~list.offset_13 |c_LDV_INIT_LIST_HEAD_#in~list.offset|) (= |c_#memory_int#1| (store |c_old(#memory_int#1)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int#1| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ v_LDV_INIT_LIST_HEAD_~list.offset_13 4))) (store (store (select |c_old(#memory_int#1)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) v_LDV_INIT_LIST_HEAD_~list.offset_13 (select .cse0 v_LDV_INIT_LIST_HEAD_~list.offset_13)) .cse1 (select .cse0 .cse1))))))) is different from true [2025-03-09 01:52:51,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:52:51,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:52:51,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2025-03-09 01:52:51,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2025-03-09 01:52:51,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-09 01:52:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:51,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 01:52:55,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924442335] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:52:55,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 01:52:55,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 14] total 17 [2025-03-09 01:52:55,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596493657] [2025-03-09 01:52:55,039 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 01:52:55,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-09 01:52:55,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:52:55,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-09 01:52:55,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=533, Unknown=1, NotChecked=46, Total=650 [2025-03-09 01:52:55,040 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 16 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 01:52:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:52:55,243 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2025-03-09 01:52:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-09 01:52:55,244 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 16 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2025-03-09 01:52:55,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:52:55,244 INFO L225 Difference]: With dead ends: 57 [2025-03-09 01:52:55,244 INFO L226 Difference]: Without dead ends: 34 [2025-03-09 01:52:55,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=84, Invalid=621, Unknown=1, NotChecked=50, Total=756 [2025-03-09 01:52:55,245 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 01:52:55,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 119 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 243 Invalid, 0 Unknown, 60 Unchecked, 0.1s Time] [2025-03-09 01:52:55,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-03-09 01:52:55,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-03-09 01:52:55,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 01:52:55,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2025-03-09 01:52:55,248 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 31 [2025-03-09 01:52:55,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:52:55,248 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2025-03-09 01:52:55,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 16 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 01:52:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2025-03-09 01:52:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-09 01:52:55,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:52:55,249 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:52:55,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 01:52:55,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:52:55,453 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:52:55,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:52:55,454 INFO L85 PathProgramCache]: Analyzing trace with hash -403850557, now seen corresponding path program 1 times [2025-03-09 01:52:55,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:52:55,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940459955] [2025-03-09 01:52:55,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:55,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:52:55,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:52:55,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:52:55,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:55,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:55,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:55,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:52:55,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940459955] [2025-03-09 01:52:55,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940459955] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:52:55,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094100399] [2025-03-09 01:52:55,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:52:55,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:52:55,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:52:55,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:52:55,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 01:52:55,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 01:52:55,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 01:52:55,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:52:55,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:52:55,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 134 conjuncts are in the unsatisfiable core [2025-03-09 01:52:55,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:52:55,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-09 01:52:55,869 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_LDV_INIT_LIST_HEAD_~list.offset_19 Int)) (and (<= v_LDV_INIT_LIST_HEAD_~list.offset_19 |c_LDV_INIT_LIST_HEAD_#in~list.offset|) (= (store |c_old(#memory_int#1)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int#1| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ v_LDV_INIT_LIST_HEAD_~list.offset_19 4))) (store (store (select |c_old(#memory_int#1)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) v_LDV_INIT_LIST_HEAD_~list.offset_19 (select .cse0 v_LDV_INIT_LIST_HEAD_~list.offset_19)) .cse1 (select .cse0 .cse1)))) |c_#memory_int#1|))) is different from true [2025-03-09 01:52:55,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:52:55,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 01:52:55,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 11 [2025-03-09 01:52:56,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2025-03-09 01:52:56,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-09 01:52:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:52:56,081 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 01:53:00,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094100399] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:53:00,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 01:53:00,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 18] total 22 [2025-03-09 01:53:00,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612049534] [2025-03-09 01:53:00,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 01:53:00,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-09 01:53:00,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:53:00,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-09 01:53:00,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=727, Unknown=2, NotChecked=54, Total=870 [2025-03-09 01:53:00,387 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 22 states, 22 states have (on average 2.5) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 01:53:00,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:53:00,610 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2025-03-09 01:53:00,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-09 01:53:00,611 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2025-03-09 01:53:00,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:53:00,611 INFO L225 Difference]: With dead ends: 56 [2025-03-09 01:53:00,611 INFO L226 Difference]: Without dead ends: 0 [2025-03-09 01:53:00,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=105, Invalid=889, Unknown=2, NotChecked=60, Total=1056 [2025-03-09 01:53:00,612 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 01:53:00,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 130 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 291 Invalid, 0 Unknown, 69 Unchecked, 0.1s Time] [2025-03-09 01:53:00,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-09 01:53:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-09 01:53:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:53:00,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-09 01:53:00,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2025-03-09 01:53:00,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:53:00,613 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 01:53:00,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 01:53:00,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-09 01:53:00,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-09 01:53:00,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-03-09 01:53:00,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-03-09 01:53:00,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-03-09 01:53:00,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-03-09 01:53:00,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-09 01:53:00,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:53:00,818 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:53:00,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-09 01:53:00,875 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 01:53:00,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 01:53:00 BoogieIcfgContainer [2025-03-09 01:53:00,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 01:53:00,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 01:53:00,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 01:53:00,881 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 01:53:00,882 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:52:48" (3/4) ... [2025-03-09 01:53:00,883 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 01:53:00,887 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2025-03-09 01:53:00,887 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD [2025-03-09 01:53:00,891 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-09 01:53:00,892 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-09 01:53:00,892 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-09 01:53:00,892 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 01:53:00,956 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 01:53:00,957 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 01:53:00,957 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 01:53:00,957 INFO L158 Benchmark]: Toolchain (without parser) took 13798.91ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 104.4MB in the beginning and 125.1MB in the end (delta: -20.7MB). Peak memory consumption was 146.5MB. Max. memory is 16.1GB. [2025-03-09 01:53:00,958 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:53:00,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.01ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 82.8MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 01:53:00,958 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.47ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:53:00,958 INFO L158 Benchmark]: Boogie Preprocessor took 34.68ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 76.8MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:53:00,959 INFO L158 Benchmark]: IcfgBuilder took 407.99ms. Allocated memory is still 142.6MB. Free memory was 76.8MB in the beginning and 56.6MB in the end (delta: 20.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 01:53:00,959 INFO L158 Benchmark]: TraceAbstraction took 12867.41ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 55.7MB in the beginning and 132.7MB in the end (delta: -77.0MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2025-03-09 01:53:00,959 INFO L158 Benchmark]: Witness Printer took 75.67ms. Allocated memory is still 310.4MB. Free memory was 132.7MB in the beginning and 125.1MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:53:00,962 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.01ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 82.8MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.47ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.68ms. Allocated memory is still 142.6MB. Free memory was 80.8MB in the beginning and 76.8MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 407.99ms. Allocated memory is still 142.6MB. Free memory was 76.8MB in the beginning and 56.6MB in the end (delta: 20.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12867.41ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 55.7MB in the beginning and 132.7MB in the end (delta: -77.0MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. * Witness Printer took 75.67ms. Allocated memory is still 310.4MB. Free memory was 132.7MB in the beginning and 125.1MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 667]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 667]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 659]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 659]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 48 locations, 58 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 1631 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 228 IncrementalHoareTripleChecker+Unchecked, 1270 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 979 IncrementalHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 361 mSDtfsCounter, 979 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 101, 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, 12 MinimizatonAttempts, 20 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 365 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 349 ConstructedInterpolants, 8 QuantifiedInterpolants, 1455 SizeOfPredicates, 39 NumberOfNonLiveVariables, 989 ConjunctsInSsa, 405 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 3/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 01:53:00,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE