./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/busybox-1.22.0/whoami-incomplete-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9cdcebc161918b7eba8ddf37eb6929c1febb35920ec9e070875db56fc6754865 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 05:57:38,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 05:57:38,380 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-09 05:57:38,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 05:57:38,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 05:57:38,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 05:57:38,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 05:57:38,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 05:57:38,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 05:57:38,404 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 05:57:38,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 05:57:38,405 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 05:57:38,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 05:57:38,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 05:57:38,405 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 05:57:38,406 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 05:57:38,406 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 05:57:38,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 05:57:38,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 05:57:38,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:57:38,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 05:57:38,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 05:57:38,407 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 05:57:38,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 05:57:38,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 05:57:38,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 05:57:38,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 05:57:38,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 05:57:38,408 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 05:57:38,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 05:57:38,408 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cdcebc161918b7eba8ddf37eb6929c1febb35920ec9e070875db56fc6754865 [2025-03-09 05:57:38,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 05:57:38,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 05:57:38,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 05:57:38,639 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 05:57:38,639 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 05:57:38,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i [2025-03-09 05:57:39,787 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ad201dc/b44077f91a3d4407a27baa1c07014f42/FLAGa086dce72 [2025-03-09 05:57:40,243 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 05:57:40,245 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i [2025-03-09 05:57:40,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ad201dc/b44077f91a3d4407a27baa1c07014f42/FLAGa086dce72 [2025-03-09 05:57:40,273 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ad201dc/b44077f91a3d4407a27baa1c07014f42 [2025-03-09 05:57:40,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 05:57:40,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 05:57:40,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 05:57:40,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 05:57:40,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 05:57:40,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:57:40" (1/1) ... [2025-03-09 05:57:40,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465ecbf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:40, skipping insertion in model container [2025-03-09 05:57:40,281 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:57:40" (1/1) ... [2025-03-09 05:57:40,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 05:57:41,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:57:41,086 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 05:57:41,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:57:41,289 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-09 05:57:41,294 INFO L204 MainTranslator]: Completed translation [2025-03-09 05:57:41,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41 WrapperNode [2025-03-09 05:57:41,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 05:57:41,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 05:57:41,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 05:57:41,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 05:57:41,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,360 INFO L138 Inliner]: procedures = 613, calls = 509, calls flagged for inlining = 19, calls inlined = 17, statements flattened = 809 [2025-03-09 05:57:41,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 05:57:41,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 05:57:41,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 05:57:41,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 05:57:41,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,392 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-09 05:57:41,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,433 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 05:57:41,464 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 05:57:41,466 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 05:57:41,466 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 05:57:41,467 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (1/1) ... [2025-03-09 05:57:41,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:57:41,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:41,491 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 05:57:41,493 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 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 05:57:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-09 05:57:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 05:57:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-09 05:57:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2025-03-09 05:57:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2025-03-09 05:57:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-09 05:57:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-09 05:57:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-09 05:57:41,778 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 05:57:41,779 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 05:57:42,288 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2466: havoc bb_internal_getpwuid_#t~ret120#1.base, bb_internal_getpwuid_#t~ret120#1.offset; [2025-03-09 05:57:42,288 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2446: havoc xuid2uname_#t~mem116#1.base, xuid2uname_#t~mem116#1.offset; [2025-03-09 05:57:42,339 INFO L? ?]: Removed 219 outVars from TransFormulas that were not future-live. [2025-03-09 05:57:42,340 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 05:57:42,352 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 05:57:42,353 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 05:57:42,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:57:42 BoogieIcfgContainer [2025-03-09 05:57:42,353 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 05:57:42,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 05:57:42,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 05:57:42,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 05:57:42,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 05:57:40" (1/3) ... [2025-03-09 05:57:42,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169dca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:57:42, skipping insertion in model container [2025-03-09 05:57:42,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:41" (2/3) ... [2025-03-09 05:57:42,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169dca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:57:42, skipping insertion in model container [2025-03-09 05:57:42,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:57:42" (3/3) ... [2025-03-09 05:57:42,359 INFO L128 eAbstractionObserver]: Analyzing ICFG whoami-incomplete-2.i [2025-03-09 05:57:42,369 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 05:57:42,370 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG whoami-incomplete-2.i that has 4 procedures, 146 locations, 1 initial locations, 11 loop locations, and 32 error locations. [2025-03-09 05:57:42,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 05:57:42,420 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;@657d200f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 05:57:42,421 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2025-03-09 05:57:42,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 103 states have (on average 1.6213592233009708) internal successors, (167), 135 states have internal predecessors, (167), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 05:57:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-09 05:57:42,427 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:42,427 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-09 05:57:42,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:42,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:42,430 INFO L85 PathProgramCache]: Analyzing trace with hash 7017727, now seen corresponding path program 1 times [2025-03-09 05:57:42,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:42,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49090977] [2025-03-09 05:57:42,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:42,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:42,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 05:57:42,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 05:57:42,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:42,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:42,892 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 05:57:42,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:42,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49090977] [2025-03-09 05:57:42,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49090977] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:42,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:42,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:57:42,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918098535] [2025-03-09 05:57:42,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:42,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:57:42,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:42,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:57:42,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:42,930 INFO L87 Difference]: Start difference. First operand has 146 states, 103 states have (on average 1.6213592233009708) internal successors, (167), 135 states have internal predecessors, (167), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:42,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:42,975 INFO L93 Difference]: Finished difference Result 194 states and 242 transitions. [2025-03-09 05:57:42,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:57:42,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-09 05:57:42,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:42,982 INFO L225 Difference]: With dead ends: 194 [2025-03-09 05:57:42,982 INFO L226 Difference]: Without dead ends: 52 [2025-03-09 05:57:42,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:42,988 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:42,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 100 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:42,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-03-09 05:57:43,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-03-09 05:57:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 48 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2025-03-09 05:57:43,018 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 4 [2025-03-09 05:57:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:43,020 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2025-03-09 05:57:43,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2025-03-09 05:57:43,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-09 05:57:43,020 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:43,020 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-03-09 05:57:43,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 05:57:43,021 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:43,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:43,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1388131455, now seen corresponding path program 1 times [2025-03-09 05:57:43,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:43,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36790181] [2025-03-09 05:57:43,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:43,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 05:57:43,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 05:57:43,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:43,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:43,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 05:57:43,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:43,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36790181] [2025-03-09 05:57:43,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36790181] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 05:57:43,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635424184] [2025-03-09 05:57:43,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:43,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:43,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:43,250 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 05:57:43,252 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 05:57:43,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 05:57:43,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 05:57:43,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:43,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:43,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 05:57:43,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:57:43,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 05:57:43,546 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:57:43,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635424184] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:43,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 05:57:43,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-09 05:57:43,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470655409] [2025-03-09 05:57:43,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:43,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 05:57:43,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:43,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 05:57:43,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:57:43,548 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:43,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:43,574 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2025-03-09 05:57:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 05:57:43,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-09 05:57:43,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:43,575 INFO L225 Difference]: With dead ends: 52 [2025-03-09 05:57:43,575 INFO L226 Difference]: Without dead ends: 51 [2025-03-09 05:57:43,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:57:43,576 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 95 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 05:57:43,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 95 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:43,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2025-03-09 05:57:43,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2025-03-09 05:57:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 47 states have internal predecessors, (53), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:43,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2025-03-09 05:57:43,585 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 7 [2025-03-09 05:57:43,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:43,586 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2025-03-09 05:57:43,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:43,587 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2025-03-09 05:57:43,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 05:57:43,587 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:43,587 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-03-09 05:57:43,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 05:57:43,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:43,788 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:43,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:43,789 INFO L85 PathProgramCache]: Analyzing trace with hash -82401983, now seen corresponding path program 1 times [2025-03-09 05:57:43,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:43,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996638639] [2025-03-09 05:57:43,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:43,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:43,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 05:57:43,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 05:57:43,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:43,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:43,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 05:57:43,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:43,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996638639] [2025-03-09 05:57:43,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996638639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:43,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:43,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:57:43,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054864622] [2025-03-09 05:57:43,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:43,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:57:43,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:43,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:57:43,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:43,932 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:43,944 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2025-03-09 05:57:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:57:43,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-09 05:57:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:43,946 INFO L225 Difference]: With dead ends: 51 [2025-03-09 05:57:43,946 INFO L226 Difference]: Without dead ends: 50 [2025-03-09 05:57:43,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:43,947 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:43,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-03-09 05:57:43,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2025-03-09 05:57:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 44 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:43,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2025-03-09 05:57:43,952 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 8 [2025-03-09 05:57:43,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:43,952 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2025-03-09 05:57:43,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:43,953 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2025-03-09 05:57:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-09 05:57:43,953 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:43,953 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:43,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 05:57:43,953 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:43,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:43,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1529999686, now seen corresponding path program 1 times [2025-03-09 05:57:43,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:43,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366263192] [2025-03-09 05:57:43,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:43,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:43,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 05:57:44,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 05:57:44,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:44,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:44,160 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 05:57:44,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:44,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366263192] [2025-03-09 05:57:44,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366263192] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 05:57:44,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555000813] [2025-03-09 05:57:44,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:44,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:44,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:44,163 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 05:57:44,164 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 05:57:44,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 05:57:44,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 05:57:44,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:44,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:44,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 05:57:44,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:57:44,413 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 05:57:44,413 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:57:44,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555000813] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:44,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 05:57:44,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-09 05:57:44,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365500592] [2025-03-09 05:57:44,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:44,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:57:44,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:44,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:57:44,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:57:44,417 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:44,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:44,437 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2025-03-09 05:57:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:57:44,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-03-09 05:57:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:44,439 INFO L225 Difference]: With dead ends: 48 [2025-03-09 05:57:44,439 INFO L226 Difference]: Without dead ends: 46 [2025-03-09 05:57:44,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:57:44,440 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 34 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:44,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 53 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-03-09 05:57:44,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-03-09 05:57:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 42 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2025-03-09 05:57:44,445 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 12 [2025-03-09 05:57:44,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:44,445 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2025-03-09 05:57:44,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:44,445 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2025-03-09 05:57:44,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-09 05:57:44,446 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:44,446 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:44,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 05:57:44,646 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,SelfDestructingSolverStorable3 [2025-03-09 05:57:44,647 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:44,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:44,647 INFO L85 PathProgramCache]: Analyzing trace with hash -185349854, now seen corresponding path program 1 times [2025-03-09 05:57:44,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:44,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310775748] [2025-03-09 05:57:44,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:44,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:44,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:57:44,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:57:44,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:44,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:44,811 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 05:57:44,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:44,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310775748] [2025-03-09 05:57:44,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310775748] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 05:57:44,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076373431] [2025-03-09 05:57:44,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:44,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:44,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:44,816 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 05:57:44,819 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 05:57:44,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:57:45,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:57:45,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:45,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:45,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 05:57:45,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:57:45,106 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 05:57:45,106 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:57:45,135 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 05:57:45,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076373431] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:57:45,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 05:57:45,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-09 05:57:45,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84851220] [2025-03-09 05:57:45,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 05:57:45,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 05:57:45,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:45,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 05:57:45,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 05:57:45,136 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 05:57:45,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:45,163 INFO L93 Difference]: Finished difference Result 95 states and 107 transitions. [2025-03-09 05:57:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 05:57:45,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2025-03-09 05:57:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:45,165 INFO L225 Difference]: With dead ends: 95 [2025-03-09 05:57:45,167 INFO L226 Difference]: Without dead ends: 55 [2025-03-09 05:57:45,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 05:57:45,168 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:45,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 92 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:45,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-03-09 05:57:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2025-03-09 05:57:45,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 51 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2025-03-09 05:57:45,173 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 60 transitions. Word has length 13 [2025-03-09 05:57:45,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:45,173 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 60 transitions. [2025-03-09 05:57:45,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 05:57:45,174 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2025-03-09 05:57:45,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-09 05:57:45,174 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:45,174 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:45,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 05:57:45,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:45,375 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:45,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash -548635232, now seen corresponding path program 2 times [2025-03-09 05:57:45,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:45,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987192576] [2025-03-09 05:57:45,375 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 05:57:45,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:45,411 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-03-09 05:57:45,429 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 22 statements. [2025-03-09 05:57:45,429 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 05:57:45,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:45,619 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-09 05:57:45,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:45,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987192576] [2025-03-09 05:57:45,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987192576] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:45,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:45,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 05:57:45,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364768164] [2025-03-09 05:57:45,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:45,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 05:57:45,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:45,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 05:57:45,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:57:45,621 INFO L87 Difference]: Start difference. First operand 55 states and 60 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:45,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:45,659 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2025-03-09 05:57:45,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 05:57:45,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-03-09 05:57:45,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:45,664 INFO L225 Difference]: With dead ends: 55 [2025-03-09 05:57:45,664 INFO L226 Difference]: Without dead ends: 53 [2025-03-09 05:57:45,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:57:45,664 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 33 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:45,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 125 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:45,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2025-03-09 05:57:45,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2025-03-09 05:57:45,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 44 states have (on average 1.25) internal successors, (55), 49 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:45,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2025-03-09 05:57:45,669 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 22 [2025-03-09 05:57:45,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:45,669 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2025-03-09 05:57:45,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:45,670 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2025-03-09 05:57:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-09 05:57:45,670 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:45,670 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:45,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 05:57:45,670 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:45,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:45,670 INFO L85 PathProgramCache]: Analyzing trace with hash 935496695, now seen corresponding path program 1 times [2025-03-09 05:57:45,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:45,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754546400] [2025-03-09 05:57:45,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:45,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:45,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-09 05:57:45,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-09 05:57:45,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:45,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:45,852 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-09 05:57:45,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:45,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754546400] [2025-03-09 05:57:45,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754546400] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:45,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:45,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:57:45,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419126623] [2025-03-09 05:57:45,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:45,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:57:45,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:45,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:57:45,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:45,854 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:45,877 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2025-03-09 05:57:45,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:57:45,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2025-03-09 05:57:45,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:45,879 INFO L225 Difference]: With dead ends: 85 [2025-03-09 05:57:45,879 INFO L226 Difference]: Without dead ends: 56 [2025-03-09 05:57:45,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:45,880 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:45,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 85 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-03-09 05:57:45,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-03-09 05:57:45,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 52 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:45,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2025-03-09 05:57:45,888 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 27 [2025-03-09 05:57:45,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:45,888 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2025-03-09 05:57:45,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:45,889 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2025-03-09 05:57:45,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-09 05:57:45,889 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:45,889 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:45,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 05:57:45,889 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:45,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash -660597895, now seen corresponding path program 1 times [2025-03-09 05:57:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:45,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088185224] [2025-03-09 05:57:45,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:45,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 05:57:45,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 05:57:45,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:45,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-09 05:57:46,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:46,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088185224] [2025-03-09 05:57:46,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088185224] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 05:57:46,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906169402] [2025-03-09 05:57:46,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:46,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:46,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:46,102 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 05:57:46,104 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 05:57:46,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 05:57:46,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 05:57:46,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:46,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:46,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 05:57:46,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:57:46,421 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 05:57:46,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:57:46,489 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 05:57:46,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906169402] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:57:46,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 05:57:46,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2025-03-09 05:57:46,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016041954] [2025-03-09 05:57:46,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 05:57:46,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-09 05:57:46,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:46,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-09 05:57:46,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-03-09 05:57:46,491 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 05:57:46,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:46,565 INFO L93 Difference]: Finished difference Result 114 states and 130 transitions. [2025-03-09 05:57:46,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 05:57:46,566 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2025-03-09 05:57:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:46,566 INFO L225 Difference]: With dead ends: 114 [2025-03-09 05:57:46,566 INFO L226 Difference]: Without dead ends: 73 [2025-03-09 05:57:46,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-03-09 05:57:46,567 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 5 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:46,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 224 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 05:57:46,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2025-03-09 05:57:46,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2025-03-09 05:57:46,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 69 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:46,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2025-03-09 05:57:46,572 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 30 [2025-03-09 05:57:46,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:46,572 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2025-03-09 05:57:46,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 05:57:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2025-03-09 05:57:46,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-09 05:57:46,573 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:46,573 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:46,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 05:57:46,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:46,774 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:46,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:46,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1642521319, now seen corresponding path program 1 times [2025-03-09 05:57:46,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:46,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114966493] [2025-03-09 05:57:46,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:46,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:46,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 05:57:46,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 05:57:46,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:46,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-03-09 05:57:46,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:46,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114966493] [2025-03-09 05:57:46,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114966493] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:46,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:46,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:57:46,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116443103] [2025-03-09 05:57:46,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:46,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:57:46,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:46,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:57:46,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:46,960 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:46,983 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2025-03-09 05:57:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:57:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2025-03-09 05:57:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:46,985 INFO L225 Difference]: With dead ends: 85 [2025-03-09 05:57:46,985 INFO L226 Difference]: Without dead ends: 83 [2025-03-09 05:57:46,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:46,985 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:46,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 80 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:46,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-09 05:57:46,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2025-03-09 05:57:46,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 78 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:46,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2025-03-09 05:57:46,990 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 48 [2025-03-09 05:57:46,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:46,990 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2025-03-09 05:57:46,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:46,991 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2025-03-09 05:57:46,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-09 05:57:46,991 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:46,991 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:46,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 05:57:46,992 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:46,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:46,992 INFO L85 PathProgramCache]: Analyzing trace with hash 621451769, now seen corresponding path program 1 times [2025-03-09 05:57:46,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:46,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750915559] [2025-03-09 05:57:46,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:46,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:47,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-09 05:57:47,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-09 05:57:47,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:47,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-03-09 05:57:47,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:47,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750915559] [2025-03-09 05:57:47,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750915559] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:47,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:47,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:57:47,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617645020] [2025-03-09 05:57:47,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:47,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:57:47,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:47,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:57:47,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:47,150 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:47,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:47,163 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2025-03-09 05:57:47,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:57:47,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2025-03-09 05:57:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:47,165 INFO L225 Difference]: With dead ends: 82 [2025-03-09 05:57:47,165 INFO L226 Difference]: Without dead ends: 81 [2025-03-09 05:57:47,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:47,165 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:47,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:47,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-03-09 05:57:47,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 77. [2025-03-09 05:57:47,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 70 states have (on average 1.1571428571428573) internal successors, (81), 73 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2025-03-09 05:57:47,172 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 49 [2025-03-09 05:57:47,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:47,173 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2025-03-09 05:57:47,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:47,174 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2025-03-09 05:57:47,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-09 05:57:47,176 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:47,176 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:47,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 05:57:47,176 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:47,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:47,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1841375102, now seen corresponding path program 1 times [2025-03-09 05:57:47,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:47,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931697361] [2025-03-09 05:57:47,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:47,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:47,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-09 05:57:47,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 05:57:47,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:47,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 05:57:47,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:47,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931697361] [2025-03-09 05:57:47,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931697361] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:47,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:47,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 05:57:47,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835121181] [2025-03-09 05:57:47,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:47,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:57:47,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:47,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:57:47,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:47,456 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 05:57:47,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:47,461 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2025-03-09 05:57:47,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:57:47,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 53 [2025-03-09 05:57:47,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:47,463 INFO L225 Difference]: With dead ends: 80 [2025-03-09 05:57:47,463 INFO L226 Difference]: Without dead ends: 77 [2025-03-09 05:57:47,464 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 05:57:47,464 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 3 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:47,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 83 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:47,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-09 05:57:47,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-03-09 05:57:47,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 70 states have (on average 1.1428571428571428) internal successors, (80), 73 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2025-03-09 05:57:47,474 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 53 [2025-03-09 05:57:47,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:47,475 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2025-03-09 05:57:47,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 05:57:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2025-03-09 05:57:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-09 05:57:47,476 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:47,476 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:47,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 05:57:47,477 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:47,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:47,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1841376063, now seen corresponding path program 1 times [2025-03-09 05:57:47,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:47,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602646818] [2025-03-09 05:57:47,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:47,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:47,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-09 05:57:47,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 05:57:47,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:47,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 05:57:47,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:47,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602646818] [2025-03-09 05:57:47,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602646818] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:47,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:47,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 05:57:47,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937707181] [2025-03-09 05:57:47,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:47,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 05:57:47,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:47,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 05:57:47,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 05:57:47,873 INFO L87 Difference]: Start difference. First operand 77 states and 83 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 05:57:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:47,915 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2025-03-09 05:57:47,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 05:57:47,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 53 [2025-03-09 05:57:47,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:47,916 INFO L225 Difference]: With dead ends: 96 [2025-03-09 05:57:47,916 INFO L226 Difference]: Without dead ends: 77 [2025-03-09 05:57:47,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 05:57:47,916 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 40 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:47,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 127 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:47,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-09 05:57:47,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-03-09 05:57:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 70 states have (on average 1.1285714285714286) internal successors, (79), 73 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:47,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2025-03-09 05:57:47,920 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 53 [2025-03-09 05:57:47,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:47,920 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2025-03-09 05:57:47,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 05:57:47,920 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2025-03-09 05:57:47,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-09 05:57:47,922 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:47,922 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:47,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 05:57:47,922 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:47,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:47,922 INFO L85 PathProgramCache]: Analyzing trace with hash -673492977, now seen corresponding path program 1 times [2025-03-09 05:57:47,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:47,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777400743] [2025-03-09 05:57:47,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:47,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:47,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-09 05:57:47,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-09 05:57:47,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:47,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:48,082 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-03-09 05:57:48,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:48,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777400743] [2025-03-09 05:57:48,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777400743] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 05:57:48,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144509655] [2025-03-09 05:57:48,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:48,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:48,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:48,084 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:57:48,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 05:57:48,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-09 05:57:48,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-09 05:57:48,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:48,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:48,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 05:57:48,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:57:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-03-09 05:57:48,426 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:57:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2025-03-09 05:57:48,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144509655] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:57:48,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 05:57:48,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-09 05:57:48,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691008071] [2025-03-09 05:57:48,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 05:57:48,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 05:57:48,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:48,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 05:57:48,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 05:57:48,446 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:48,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:48,479 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2025-03-09 05:57:48,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 05:57:48,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2025-03-09 05:57:48,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:48,480 INFO L225 Difference]: With dead ends: 125 [2025-03-09 05:57:48,480 INFO L226 Difference]: Without dead ends: 95 [2025-03-09 05:57:48,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 05:57:48,481 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 4 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:48,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 81 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:48,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2025-03-09 05:57:48,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2025-03-09 05:57:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 88 states have (on average 1.1022727272727273) internal successors, (97), 91 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:48,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2025-03-09 05:57:48,490 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 55 [2025-03-09 05:57:48,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:48,490 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2025-03-09 05:57:48,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:48,491 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2025-03-09 05:57:48,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-09 05:57:48,493 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:48,493 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 1, 1, 1, 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 05:57:48,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 05:57:48,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-09 05:57:48,694 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:48,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:48,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1192616583, now seen corresponding path program 1 times [2025-03-09 05:57:48,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:48,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281441508] [2025-03-09 05:57:48,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:48,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:48,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-09 05:57:48,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-09 05:57:48,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:48,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 05:57:48,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:57:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281441508] [2025-03-09 05:57:48,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281441508] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 05:57:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424153737] [2025-03-09 05:57:48,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:48,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:48,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:48,975 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:57:48,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 05:57:49,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-09 05:57:49,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-09 05:57:49,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:49,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:49,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 05:57:49,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:57:49,377 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 05:57:49,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:57:49,440 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 05:57:49,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424153737] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:57:49,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 05:57:49,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-03-09 05:57:49,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944894962] [2025-03-09 05:57:49,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 05:57:49,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 05:57:49,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:57:49,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 05:57:49,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-09 05:57:49,442 INFO L87 Difference]: Start difference. First operand 95 states and 100 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 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 05:57:49,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:49,491 INFO L93 Difference]: Finished difference Result 170 states and 190 transitions. [2025-03-09 05:57:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 05:57:49,492 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 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 69 [2025-03-09 05:57:49,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:49,492 INFO L225 Difference]: With dead ends: 170 [2025-03-09 05:57:49,493 INFO L226 Difference]: Without dead ends: 131 [2025-03-09 05:57:49,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-09 05:57:49,493 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 4 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:49,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 120 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:49,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2025-03-09 05:57:49,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2025-03-09 05:57:49,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 124 states have (on average 1.0725806451612903) internal successors, (133), 127 states have internal predecessors, (133), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:49,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 136 transitions. [2025-03-09 05:57:49,500 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 136 transitions. Word has length 69 [2025-03-09 05:57:49,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:49,500 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 136 transitions. [2025-03-09 05:57:49,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 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 05:57:49,500 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 136 transitions. [2025-03-09 05:57:49,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-09 05:57:49,501 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:49,501 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 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 05:57:49,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 05:57:49,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:49,702 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:49,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:49,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1683510073, now seen corresponding path program 2 times [2025-03-09 05:57:49,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:57:49,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666818187] [2025-03-09 05:57:49,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 05:57:49,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:57:49,764 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 87 statements into 2 equivalence classes. [2025-03-09 05:57:50,054 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 87 of 87 statements. [2025-03-09 05:57:50,055 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 05:57:50,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:57:50,055 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 05:57:50,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-09 05:57:50,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-09 05:57:50,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:50,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:57:50,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 05:57:50,327 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 05:57:50,328 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONUNSUPPORTED_FEATURE (31 of 32 remaining) [2025-03-09 05:57:50,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (30 of 32 remaining) [2025-03-09 05:57:50,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 32 remaining) [2025-03-09 05:57:50,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 32 remaining) [2025-03-09 05:57:50,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 32 remaining) [2025-03-09 05:57:50,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 32 remaining) [2025-03-09 05:57:50,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 32 remaining) [2025-03-09 05:57:50,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 32 remaining) [2025-03-09 05:57:50,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 32 remaining) [2025-03-09 05:57:50,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 32 remaining) [2025-03-09 05:57:50,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 32 remaining) [2025-03-09 05:57:50,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 32 remaining) [2025-03-09 05:57:50,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 32 remaining) [2025-03-09 05:57:50,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 32 remaining) [2025-03-09 05:57:50,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 32 remaining) [2025-03-09 05:57:50,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 32 remaining) [2025-03-09 05:57:50,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 32 remaining) [2025-03-09 05:57:50,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 32 remaining) [2025-03-09 05:57:50,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 32 remaining) [2025-03-09 05:57:50,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 32 remaining) [2025-03-09 05:57:50,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 32 remaining) [2025-03-09 05:57:50,334 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 32 remaining) [2025-03-09 05:57:50,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 05:57:50,337 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:57:50,418 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 05:57:50,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 05:57:50 BoogieIcfgContainer [2025-03-09 05:57:50,423 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 05:57:50,424 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 05:57:50,424 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 05:57:50,425 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 05:57:50,425 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:57:42" (3/4) ... [2025-03-09 05:57:50,427 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-09 05:57:50,428 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 05:57:50,428 INFO L158 Benchmark]: Toolchain (without parser) took 10152.77ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 102.7MB in the beginning and 154.9MB in the end (delta: -52.3MB). Peak memory consumption was 227.6MB. Max. memory is 16.1GB. [2025-03-09 05:57:50,429 INFO L158 Benchmark]: CDTParser took 0.99ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:57:50,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1018.45ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 78.9MB in the end (delta: 23.7MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. [2025-03-09 05:57:50,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.33ms. Allocated memory is still 142.6MB. Free memory was 78.9MB in the beginning and 71.3MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 05:57:50,429 INFO L158 Benchmark]: Boogie Preprocessor took 101.90ms. Allocated memory is still 142.6MB. Free memory was 71.3MB in the beginning and 63.9MB in the end (delta: 7.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:57:50,429 INFO L158 Benchmark]: IcfgBuilder took 889.39ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 47.8MB in the end (delta: 16.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-09 05:57:50,430 INFO L158 Benchmark]: TraceAbstraction took 8068.80ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 46.9MB in the beginning and 155.0MB in the end (delta: -108.0MB). Peak memory consumption was 170.6MB. Max. memory is 16.1GB. [2025-03-09 05:57:50,430 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 419.4MB. Free memory was 155.0MB in the beginning and 154.9MB in the end (delta: 35.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:57:50,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1018.45ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 78.9MB in the end (delta: 23.7MB). Peak memory consumption was 88.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.33ms. Allocated memory is still 142.6MB. Free memory was 78.9MB in the beginning and 71.3MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.90ms. Allocated memory is still 142.6MB. Free memory was 71.3MB in the beginning and 63.9MB in the end (delta: 7.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 889.39ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 47.8MB in the end (delta: 16.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8068.80ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 46.9MB in the beginning and 155.0MB in the end (delta: -108.0MB). Peak memory consumption was 170.6MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 419.4MB. Free memory was 155.0MB in the beginning and 154.9MB in the end (delta: 35.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 972]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of undefined function vasprintf at line 972. Possible FailurePath: [L2271] static const char *applet_name; [L2272] static signed int bb_errno_location; [L2273] static signed int * const bb_errno = &bb_errno_location; [L2274] static struct __jmp_buf_tag die_jmp[1l]; [L2275] static signed int die_sleep; [L2276] static signed char logmode = (signed char)1; [L2277] static const char *msg_eol = "\n"; [L2278] static unsigned char xfunc_error_retval = (unsigned char)1; [L2451] static struct passwd p; [L2473] static struct utmp dummy_utmp; VAL [applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2536] char *a = malloc(11); [L2537] a[10] = 0 [L2538] int i=0; VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=0, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=0, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=1, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=1, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=2, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=2, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=3, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=3, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=4, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=4, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=5, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=5, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=6, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=6, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=7, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=7, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=8, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=8, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=9, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND TRUE i<10 [L2539] a[i]=__VERIFIER_nondet_char() VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=9, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] ++i VAL [a={331:0}, applet_name={0:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=10, logmode=1, msg_eol={3:0}, p={13:0}, xfunc_error_retval=1] [L2538] COND FALSE !(i<10) [L2540] applet_name = a [L2541] bb_errno_location = __VERIFIER_nondet_int() [L2542] optind = 1 [L2543] int argc = __VERIFIER_nondet_int(); [L2544] CALL assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [\old(cond)=1, applet_name={331:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, logmode=1, msg_eol={3:0}, optind=1, p={13:0}, xfunc_error_retval=1] [L9] COND FALSE !(!cond) VAL [\old(cond)=1, applet_name={331:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, logmode=1, msg_eol={3:0}, optind=1, p={13:0}, xfunc_error_retval=1] [L2544] RET assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [applet_name={331:0}, argc=1, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, logmode=1, msg_eol={3:0}, optind=1, p={13:0}, xfunc_error_retval=1] [L2545] EXPR argc+1 [L2545] char **argv=malloc((argc+1)*sizeof(char*)); [L2546] EXPR argc+1 [L2546] char **mem_track=malloc((argc+1)*sizeof(char*)); [L2547] argv[argc]=0 [L2548] int i=0; VAL [applet_name={331:0}, argc=1, argv={-12:0}, bb_errno={12:0}, bb_errno_location={12:0}, die_sleep=0, dummy_utmp={14:0}, i=0, logmode=1, mem_track={-13:0}, msg_eol={3:0}, optind=1, p={13:0}, xfunc_error_retval=1] [L2548] COND TRUE i main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cdcebc161918b7eba8ddf37eb6929c1febb35920ec9e070875db56fc6754865 [2025-03-09 05:57:52,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 05:57:52,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 05:57:52,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 05:57:52,793 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 05:57:52,793 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 05:57:52,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i [2025-03-09 05:57:53,934 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca5b57fc/4b8be9981f884fbcbcacc576a952b22c/FLAGfc374861b [2025-03-09 05:57:54,259 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 05:57:54,259 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i [2025-03-09 05:57:54,286 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca5b57fc/4b8be9981f884fbcbcacc576a952b22c/FLAGfc374861b [2025-03-09 05:57:54,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca5b57fc/4b8be9981f884fbcbcacc576a952b22c [2025-03-09 05:57:54,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 05:57:54,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 05:57:54,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 05:57:54,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 05:57:54,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 05:57:54,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:57:54" (1/1) ... [2025-03-09 05:57:54,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524d5dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:54, skipping insertion in model container [2025-03-09 05:57:54,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:57:54" (1/1) ... [2025-03-09 05:57:54,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 05:57:55,146 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,148 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,149 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,150 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,155 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,155 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,156 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,156 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,157 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,162 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,164 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,167 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,168 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,174 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,177 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,188 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,197 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 05:57:55,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:57:55,238 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 05:57:55,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:57:55,491 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-09 05:57:55,498 INFO L204 MainTranslator]: Completed translation [2025-03-09 05:57:55,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55 WrapperNode [2025-03-09 05:57:55,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 05:57:55,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 05:57:55,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 05:57:55,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 05:57:55,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,589 INFO L138 Inliner]: procedures = 624, calls = 509, calls flagged for inlining = 19, calls inlined = 17, statements flattened = 789 [2025-03-09 05:57:55,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 05:57:55,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 05:57:55,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 05:57:55,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 05:57:55,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,625 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-09 05:57:55,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,667 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 05:57:55,696 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 05:57:55,696 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 05:57:55,696 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 05:57:55,697 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (1/1) ... [2025-03-09 05:57:55,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:57:55,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:55,726 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 05:57:55,728 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 05:57:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 05:57:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 05:57:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-09 05:57:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 05:57:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2025-03-09 05:57:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-09 05:57:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2025-03-09 05:57:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2025-03-09 05:57:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2025-03-09 05:57:56,030 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 05:57:56,032 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 05:57:57,266 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2466: havoc bb_internal_getpwuid_#t~ret119#1.base, bb_internal_getpwuid_#t~ret119#1.offset; [2025-03-09 05:57:57,266 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2446: havoc xuid2uname_#t~mem115#1.base, xuid2uname_#t~mem115#1.offset; [2025-03-09 05:57:57,320 INFO L? ?]: Removed 211 outVars from TransFormulas that were not future-live. [2025-03-09 05:57:57,320 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 05:57:57,329 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 05:57:57,329 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 05:57:57,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:57:57 BoogieIcfgContainer [2025-03-09 05:57:57,329 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 05:57:57,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 05:57:57,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 05:57:57,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 05:57:57,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 05:57:54" (1/3) ... [2025-03-09 05:57:57,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7853e6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:57:57, skipping insertion in model container [2025-03-09 05:57:57,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:57:55" (2/3) ... [2025-03-09 05:57:57,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7853e6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:57:57, skipping insertion in model container [2025-03-09 05:57:57,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:57:57" (3/3) ... [2025-03-09 05:57:57,336 INFO L128 eAbstractionObserver]: Analyzing ICFG whoami-incomplete-2.i [2025-03-09 05:57:57,346 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 05:57:57,350 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG whoami-incomplete-2.i that has 4 procedures, 143 locations, 1 initial locations, 11 loop locations, and 32 error locations. [2025-03-09 05:57:57,391 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 05:57:57,401 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;@3241b982, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 05:57:57,401 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2025-03-09 05:57:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 100 states have (on average 1.62) internal successors, (162), 132 states have internal predecessors, (162), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 05:57:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-09 05:57:57,410 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:57,410 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-09 05:57:57,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:57,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:57,414 INFO L85 PathProgramCache]: Analyzing trace with hash 6833023, now seen corresponding path program 1 times [2025-03-09 05:57:57,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:57:57,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620483648] [2025-03-09 05:57:57,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:57,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:57,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:57,425 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 05:57:57,427 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 05:57:57,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 05:57:58,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 05:57:58,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:58,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:58,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-09 05:57:58,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:57:58,086 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 05:57:58,087 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:57:58,087 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:57:58,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620483648] [2025-03-09 05:57:58,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620483648] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:58,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:58,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 05:57:58,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127120762] [2025-03-09 05:57:58,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:58,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 05:57:58,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:57:58,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 05:57:58,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 05:57:58,109 INFO L87 Difference]: Start difference. First operand has 143 states, 100 states have (on average 1.62) internal successors, (162), 132 states have internal predecessors, (162), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:58,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:58,128 INFO L93 Difference]: Finished difference Result 181 states and 229 transitions. [2025-03-09 05:57:58,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 05:57:58,129 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-09 05:57:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:58,133 INFO L225 Difference]: With dead ends: 181 [2025-03-09 05:57:58,133 INFO L226 Difference]: Without dead ends: 44 [2025-03-09 05:57:58,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 05:57:58,139 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:58,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:58,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2025-03-09 05:57:58,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2025-03-09 05:57:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 40 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:58,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2025-03-09 05:57:58,167 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 4 [2025-03-09 05:57:58,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:58,168 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2025-03-09 05:57:58,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2025-03-09 05:57:58,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 05:57:58,169 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:58,169 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 05:57:58,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 05:57:58,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:58,370 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:58,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash 211823869, now seen corresponding path program 1 times [2025-03-09 05:57:58,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:57:58,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372986055] [2025-03-09 05:57:58,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:58,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:58,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:58,374 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 05:57:58,375 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 05:57:58,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 05:57:58,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 05:57:58,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:58,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:59,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 05:57:59,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:57:59,032 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 05:57:59,033 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:57:59,033 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:57:59,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372986055] [2025-03-09 05:57:59,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372986055] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:57:59,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:57:59,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:57:59,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424856671] [2025-03-09 05:57:59,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:57:59,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:57:59,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:57:59,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:57:59,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:59,035 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:59,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:57:59,063 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2025-03-09 05:57:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:57:59,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-09 05:57:59,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:57:59,066 INFO L225 Difference]: With dead ends: 86 [2025-03-09 05:57:59,066 INFO L226 Difference]: Without dead ends: 47 [2025-03-09 05:57:59,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:57:59,067 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:57:59,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:57:59,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-03-09 05:57:59,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2025-03-09 05:57:59,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 43 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:57:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2025-03-09 05:57:59,074 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 5 [2025-03-09 05:57:59,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:57:59,075 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2025-03-09 05:57:59,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:57:59,075 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2025-03-09 05:57:59,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 05:57:59,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:57:59,075 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-03-09 05:57:59,104 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 05:57:59,275 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 [2025-03-09 05:57:59,276 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:57:59,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:57:59,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1138082369, now seen corresponding path program 1 times [2025-03-09 05:57:59,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:57:59,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324016948] [2025-03-09 05:57:59,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:57:59,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:57:59,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:57:59,279 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 05:57:59,280 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 05:57:59,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 05:57:59,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 05:57:59,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:57:59,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:57:59,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 05:57:59,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:57:59,934 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 05:57:59,934 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:57:59,976 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 05:57:59,977 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:57:59,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324016948] [2025-03-09 05:57:59,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324016948] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:57:59,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 05:57:59,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-03-09 05:57:59,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610545320] [2025-03-09 05:57:59,977 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 05:57:59,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 05:57:59,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:57:59,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 05:57:59,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-09 05:57:59,978 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:58:00,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:58:00,070 INFO L93 Difference]: Finished difference Result 89 states and 101 transitions. [2025-03-09 05:58:00,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 05:58:00,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-09 05:58:00,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:58:00,072 INFO L225 Difference]: With dead ends: 89 [2025-03-09 05:58:00,072 INFO L226 Difference]: Without dead ends: 50 [2025-03-09 05:58:00,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-09 05:58:00,073 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 05:58:00,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 05:58:00,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-03-09 05:58:00,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2025-03-09 05:58:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 43 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:00,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2025-03-09 05:58:00,078 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 8 [2025-03-09 05:58:00,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:58:00,078 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2025-03-09 05:58:00,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 05:58:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2025-03-09 05:58:00,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-09 05:58:00,078 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:58:00,078 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:58:00,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 05:58:00,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:00,279 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:58:00,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:58:00,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1232403922, now seen corresponding path program 1 times [2025-03-09 05:58:00,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:58:00,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1528205268] [2025-03-09 05:58:00,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:58:00,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:00,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:58:00,282 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 05:58:00,282 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 05:58:00,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 05:58:00,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 05:58:00,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:58:00,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:58:00,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 05:58:00,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:58:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 05:58:00,967 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:58:00,967 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:58:00,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528205268] [2025-03-09 05:58:00,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528205268] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:58:00,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:58:00,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 05:58:00,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292775231] [2025-03-09 05:58:00,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:58:00,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 05:58:00,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:58:00,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 05:58:00,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:58:00,968 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:01,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:58:01,124 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2025-03-09 05:58:01,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 05:58:01,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-03-09 05:58:01,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:58:01,134 INFO L225 Difference]: With dead ends: 47 [2025-03-09 05:58:01,134 INFO L226 Difference]: Without dead ends: 45 [2025-03-09 05:58:01,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:58:01,134 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 31 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 05:58:01,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 119 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 05:58:01,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-03-09 05:58:01,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2025-03-09 05:58:01,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.236842105263158) internal successors, (47), 41 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:01,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2025-03-09 05:58:01,142 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 16 [2025-03-09 05:58:01,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:58:01,142 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2025-03-09 05:58:01,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:01,142 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2025-03-09 05:58:01,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-09 05:58:01,142 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:58:01,142 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:58:01,175 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 05:58:01,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:01,343 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:58:01,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:58:01,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1421508744, now seen corresponding path program 1 times [2025-03-09 05:58:01,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:58:01,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632519090] [2025-03-09 05:58:01,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:58:01,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:01,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:58:01,346 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:58:01,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 05:58:01,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 05:58:01,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 05:58:01,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:58:01,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:58:01,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 05:58:01,982 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:58:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 05:58:01,994 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:58:01,994 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:58:01,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632519090] [2025-03-09 05:58:01,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632519090] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:58:01,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:58:01,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:58:01,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317800533] [2025-03-09 05:58:01,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:58:01,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:58:01,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:58:01,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:58:01,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:58:01,995 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:58:02,086 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2025-03-09 05:58:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:58:02,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-03-09 05:58:02,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:58:02,087 INFO L225 Difference]: With dead ends: 53 [2025-03-09 05:58:02,087 INFO L226 Difference]: Without dead ends: 52 [2025-03-09 05:58:02,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:58:02,088 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 05:58:02,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 79 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 05:58:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-03-09 05:58:02,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2025-03-09 05:58:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 47 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:02,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2025-03-09 05:58:02,091 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 22 [2025-03-09 05:58:02,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:58:02,091 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2025-03-09 05:58:02,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:02,091 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2025-03-09 05:58:02,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-09 05:58:02,092 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:58:02,092 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:58:02,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-09 05:58:02,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:02,293 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:58:02,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:58:02,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1421513709, now seen corresponding path program 1 times [2025-03-09 05:58:02,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:58:02,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320072526] [2025-03-09 05:58:02,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:58:02,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:02,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:58:02,296 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:58:02,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 05:58:02,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 05:58:02,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 05:58:02,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:58:02,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:58:02,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 05:58:02,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:58:02,975 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 05:58:02,975 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:58:02,975 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:58:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320072526] [2025-03-09 05:58:02,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320072526] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:58:02,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:58:02,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:58:02,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521102949] [2025-03-09 05:58:02,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:58:02,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:58:02,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:58:02,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:58:02,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:58:02,977 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:03,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:58:03,014 INFO L93 Difference]: Finished difference Result 86 states and 102 transitions. [2025-03-09 05:58:03,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:58:03,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-03-09 05:58:03,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:58:03,016 INFO L225 Difference]: With dead ends: 86 [2025-03-09 05:58:03,016 INFO L226 Difference]: Without dead ends: 57 [2025-03-09 05:58:03,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:58:03,017 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 05:58:03,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 05:58:03,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2025-03-09 05:58:03,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2025-03-09 05:58:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.24) internal successors, (62), 53 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2025-03-09 05:58:03,022 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 22 [2025-03-09 05:58:03,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:58:03,023 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2025-03-09 05:58:03,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:03,023 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2025-03-09 05:58:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 05:58:03,024 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:58:03,024 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:58:03,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 05:58:03,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:03,225 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:58:03,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:58:03,227 INFO L85 PathProgramCache]: Analyzing trace with hash -62490815, now seen corresponding path program 1 times [2025-03-09 05:58:03,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:58:03,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621862144] [2025-03-09 05:58:03,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:58:03,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:03,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:58:03,229 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:58:03,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 05:58:03,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 05:58:03,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 05:58:03,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:58:03,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:58:03,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 05:58:03,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:58:03,992 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 05:58:03,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:58:04,026 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 05:58:04,027 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:58:04,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621862144] [2025-03-09 05:58:04,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621862144] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:58:04,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 05:58:04,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-03-09 05:58:04,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10555558] [2025-03-09 05:58:04,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 05:58:04,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 05:58:04,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:58:04,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 05:58:04,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-09 05:58:04,028 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:04,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:58:04,141 INFO L93 Difference]: Finished difference Result 96 states and 115 transitions. [2025-03-09 05:58:04,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 05:58:04,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2025-03-09 05:58:04,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:58:04,143 INFO L225 Difference]: With dead ends: 96 [2025-03-09 05:58:04,143 INFO L226 Difference]: Without dead ends: 64 [2025-03-09 05:58:04,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-09 05:58:04,143 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 05:58:04,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 05:58:04,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-03-09 05:58:04,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2025-03-09 05:58:04,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 54 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:04,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2025-03-09 05:58:04,149 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 25 [2025-03-09 05:58:04,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:58:04,149 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2025-03-09 05:58:04,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:04,149 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2025-03-09 05:58:04,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-09 05:58:04,150 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:58:04,150 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:58:04,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 05:58:04,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:04,350 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:58:04,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:58:04,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1572492039, now seen corresponding path program 1 times [2025-03-09 05:58:04,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:58:04,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636372545] [2025-03-09 05:58:04,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:58:04,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:04,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:58:04,354 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:58:04,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 05:58:04,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-09 05:58:04,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-09 05:58:04,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:58:04,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:58:04,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 05:58:04,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:58:05,053 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 05:58:05,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:58:05,053 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:58:05,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636372545] [2025-03-09 05:58:05,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636372545] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:58:05,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:58:05,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 05:58:05,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402395804] [2025-03-09 05:58:05,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:58:05,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 05:58:05,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:58:05,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 05:58:05,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 05:58:05,054 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 05:58:05,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:58:05,206 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2025-03-09 05:58:05,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 05:58:05,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 29 [2025-03-09 05:58:05,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:58:05,207 INFO L225 Difference]: With dead ends: 77 [2025-03-09 05:58:05,207 INFO L226 Difference]: Without dead ends: 58 [2025-03-09 05:58:05,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 05:58:05,207 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 34 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 05:58:05,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 138 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 05:58:05,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2025-03-09 05:58:05,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2025-03-09 05:58:05,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 54 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2025-03-09 05:58:05,211 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 29 [2025-03-09 05:58:05,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:58:05,211 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2025-03-09 05:58:05,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 05:58:05,211 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2025-03-09 05:58:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-09 05:58:05,211 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:58:05,211 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:58:05,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-09 05:58:05,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:05,412 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:58:05,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:58:05,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1979263424, now seen corresponding path program 1 times [2025-03-09 05:58:05,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:58:05,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1769904913] [2025-03-09 05:58:05,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:58:05,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:05,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:58:05,416 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:58:05,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 05:58:05,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 05:58:06,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 05:58:06,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:58:06,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:58:06,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 05:58:06,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:58:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-09 05:58:06,218 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:58:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-09 05:58:06,279 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:58:06,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769904913] [2025-03-09 05:58:06,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769904913] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:58:06,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 05:58:06,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-03-09 05:58:06,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092504251] [2025-03-09 05:58:06,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 05:58:06,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 05:58:06,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:58:06,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 05:58:06,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-09 05:58:06,280 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:06,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:58:06,557 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2025-03-09 05:58:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 05:58:06,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2025-03-09 05:58:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:58:06,560 INFO L225 Difference]: With dead ends: 79 [2025-03-09 05:58:06,560 INFO L226 Difference]: Without dead ends: 78 [2025-03-09 05:58:06,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-09 05:58:06,560 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 05:58:06,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 05:58:06,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-03-09 05:58:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 48. [2025-03-09 05:58:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 44 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:06,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2025-03-09 05:58:06,568 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 38 [2025-03-09 05:58:06,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:58:06,568 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2025-03-09 05:58:06,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2025-03-09 05:58:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-09 05:58:06,568 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:58:06,568 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:58:06,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-09 05:58:06,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:06,769 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:58:06,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:58:06,769 INFO L85 PathProgramCache]: Analyzing trace with hash 444994511, now seen corresponding path program 1 times [2025-03-09 05:58:06,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:58:06,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178208805] [2025-03-09 05:58:06,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:58:06,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:06,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:58:06,772 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:58:06,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 05:58:06,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 05:58:07,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 05:58:07,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:58:07,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:58:07,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 05:58:07,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:58:07,621 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 05:58:07,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:58:07,667 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 05:58:07,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:58:07,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178208805] [2025-03-09 05:58:07,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178208805] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:58:07,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 05:58:07,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-09 05:58:07,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276156784] [2025-03-09 05:58:07,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 05:58:07,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 05:58:07,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:58:07,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 05:58:07,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-09 05:58:07,668 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 05:58:07,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:58:07,776 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2025-03-09 05:58:07,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 05:58:07,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 39 [2025-03-09 05:58:07,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:58:07,778 INFO L225 Difference]: With dead ends: 99 [2025-03-09 05:58:07,778 INFO L226 Difference]: Without dead ends: 60 [2025-03-09 05:58:07,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-03-09 05:58:07,779 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 10 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 05:58:07,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 197 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 05:58:07,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-03-09 05:58:07,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2025-03-09 05:58:07,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 56 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:58:07,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2025-03-09 05:58:07,788 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 39 [2025-03-09 05:58:07,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:58:07,788 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2025-03-09 05:58:07,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 05:58:07,788 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2025-03-09 05:58:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-09 05:58:07,789 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:58:07,789 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:58:07,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-09 05:58:07,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:07,991 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fflush_allErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2025-03-09 05:58:07,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:58:07,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1908291889, now seen corresponding path program 2 times [2025-03-09 05:58:07,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:58:07,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743214797] [2025-03-09 05:58:07,992 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 05:58:07,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:58:07,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:58:07,994 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:58:07,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-09 05:58:08,172 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-03-09 05:59:17,310 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-03-09 05:59:17,311 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 05:59:17,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:59:17,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 05:59:17,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:59:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-09 05:59:17,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:59:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-09 05:59:17,474 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-09 05:59:17,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743214797] [2025-03-09 05:59:17,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743214797] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:59:17,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 05:59:17,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-09 05:59:17,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454275601] [2025-03-09 05:59:17,475 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 05:59:17,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 05:59:17,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-09 05:59:17,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 05:59:17,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-09 05:59:17,476 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:59:17,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:59:17,691 INFO L93 Difference]: Finished difference Result 101 states and 114 transitions. [2025-03-09 05:59:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 05:59:17,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2025-03-09 05:59:17,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:59:17,692 INFO L225 Difference]: With dead ends: 101 [2025-03-09 05:59:17,692 INFO L226 Difference]: Without dead ends: 72 [2025-03-09 05:59:17,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-03-09 05:59:17,693 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 05:59:17,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 231 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 05:59:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-03-09 05:59:17,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-03-09 05:59:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 67 states have (on average 1.1044776119402986) internal successors, (74), 68 states have internal predecessors, (74), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:59:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2025-03-09 05:59:17,697 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 51 [2025-03-09 05:59:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:59:17,697 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2025-03-09 05:59:17,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 05:59:17,698 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2025-03-09 05:59:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-09 05:59:17,698 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:59:17,698 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 1, 1, 1, 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 05:59:17,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0