./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c --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/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c -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 b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:44:54,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:44:54,212 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-09 01:44:54,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:44:54,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:44:54,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:44:54,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:44:54,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:44:54,236 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:44:54,237 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:44:54,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:44:54,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:44:54,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:44:54,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:44:54,238 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:44:54,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:44:54,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 01:44:54,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:44:54,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:44:54,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 01:44:54,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:44:54,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 01:44:54,239 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 01:44:54,240 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:44:54,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 01:44:54,240 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:44:54,240 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:44:54,240 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:44:54,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:44:54,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:44:54,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:44:54,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:44:54,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:44:54,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:44:54,241 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 01:44:54,241 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 01:44:54,241 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:44:54,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:44:54,241 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:44:54,241 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:44:54,242 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:44:54,242 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:44:54,242 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 -> b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b [2025-03-09 01:44:54,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:44:54,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:44:54,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:44:54,464 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:44:54,464 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:44:54,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2025-03-09 01:44:55,566 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e07b009f/d57e8524190f46658683377960cf11fc/FLAG798808f3d [2025-03-09 01:44:55,807 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:44:55,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2025-03-09 01:44:55,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e07b009f/d57e8524190f46658683377960cf11fc/FLAG798808f3d [2025-03-09 01:44:56,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e07b009f/d57e8524190f46658683377960cf11fc [2025-03-09 01:44:56,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:44:56,149 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:44:56,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:44:56,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:44:56,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:44:56,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499a0ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56, skipping insertion in model container [2025-03-09 01:44:56,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:44:56,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:44:56,256 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:44:56,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:44:56,276 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:44:56,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56 WrapperNode [2025-03-09 01:44:56,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:44:56,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:44:56,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:44:56,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:44:56,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,294 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2025-03-09 01:44:56,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:44:56,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:44:56,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:44:56,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:44:56,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,303 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-09 01:44:56,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,304 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:44:56,308 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:44:56,308 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:44:56,308 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:44:56,308 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (1/1) ... [2025-03-09 01:44:56,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:44:56,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:44:56,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 01:44:56,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 01:44:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure unlock [2025-03-09 01:44:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock [2025-03-09 01:44:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure lock [2025-03-09 01:44:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure lock [2025-03-09 01:44:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:44:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:44:56,385 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:44:56,386 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:44:56,489 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-03-09 01:44:56,489 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:44:56,495 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:44:56,495 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:44:56,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:44:56 BoogieIcfgContainer [2025-03-09 01:44:56,495 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:44:56,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:44:56,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:44:56,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:44:56,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:44:56" (1/3) ... [2025-03-09 01:44:56,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:44:56, skipping insertion in model container [2025-03-09 01:44:56,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:44:56" (2/3) ... [2025-03-09 01:44:56,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:44:56, skipping insertion in model container [2025-03-09 01:44:56,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:44:56" (3/3) ... [2025-03-09 01:44:56,502 INFO L128 eAbstractionObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2025-03-09 01:44:56,511 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:44:56,512 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c that has 3 procedures, 36 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-03-09 01:44:56,544 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:44:56,555 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;@459eb14a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:44:56,555 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-09 01:44:56,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 25 states have (on average 1.52) internal successors, (38), 29 states have internal predecessors, (38), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 01:44:56,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-09 01:44:56,563 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:44:56,563 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:44:56,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:44:56,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:44:56,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1017778685, now seen corresponding path program 1 times [2025-03-09 01:44:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:44:56,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236853834] [2025-03-09 01:44:56,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:44:56,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:44:56,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 01:44:56,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 01:44:56,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:44:56,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:44:56,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:44:56,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236853834] [2025-03-09 01:44:56,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236853834] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:44:56,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:44:56,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:44:56,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913485588] [2025-03-09 01:44:56,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:44:56,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:44:56,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:44:56,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:44:56,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:44:56,732 INFO L87 Difference]: Start difference. First operand has 36 states, 25 states have (on average 1.52) internal successors, (38), 29 states have internal predecessors, (38), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 01:44:56,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:44:56,778 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2025-03-09 01:44:56,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:44:56,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2025-03-09 01:44:56,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:44:56,784 INFO L225 Difference]: With dead ends: 57 [2025-03-09 01:44:56,784 INFO L226 Difference]: Without dead ends: 30 [2025-03-09 01:44:56,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:44:56,789 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:44:56,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 109 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:44:56,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-09 01:44:56,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-03-09 01:44:56,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 24 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 01:44:56,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2025-03-09 01:44:56,824 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 11 [2025-03-09 01:44:56,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:44:56,826 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2025-03-09 01:44:56,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 01:44:56,826 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2025-03-09 01:44:56,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-09 01:44:56,828 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:44:56,828 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:44:56,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:44:56,829 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:44:56,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:44:56,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1486368164, now seen corresponding path program 1 times [2025-03-09 01:44:56,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:44:56,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501924589] [2025-03-09 01:44:56,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:44:56,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:44:56,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 01:44:56,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 01:44:56,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:44:56,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:56,892 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 01:44:56,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:44:56,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501924589] [2025-03-09 01:44:56,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501924589] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:44:56,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:44:56,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:44:56,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226276038] [2025-03-09 01:44:56,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:44:56,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:44:56,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:44:56,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:44:56,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:44:56,894 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 01:44:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:44:56,921 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2025-03-09 01:44:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:44:56,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-03-09 01:44:56,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:44:56,921 INFO L225 Difference]: With dead ends: 31 [2025-03-09 01:44:56,921 INFO L226 Difference]: Without dead ends: 30 [2025-03-09 01:44:56,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:44:56,922 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:44:56,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 93 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:44:56,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-09 01:44:56,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2025-03-09 01:44:56,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 23 states have internal predecessors, (30), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 01:44:56,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2025-03-09 01:44:56,928 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 12 [2025-03-09 01:44:56,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:44:56,929 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2025-03-09 01:44:56,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 01:44:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2025-03-09 01:44:56,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-09 01:44:56,930 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:44:56,930 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:44:56,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:44:56,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:44:56,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:44:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1956815421, now seen corresponding path program 1 times [2025-03-09 01:44:56,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:44:56,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833314797] [2025-03-09 01:44:56,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:44:56,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:44:56,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 01:44:56,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 01:44:56,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:44:56,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:44:56,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:44:56,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833314797] [2025-03-09 01:44:56,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833314797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:44:56,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:44:56,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:44:56,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644361510] [2025-03-09 01:44:56,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:44:56,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:44:56,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:44:56,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:44:56,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:44:56,999 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 01:44:57,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:44:57,022 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2025-03-09 01:44:57,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:44:57,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2025-03-09 01:44:57,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:44:57,024 INFO L225 Difference]: With dead ends: 29 [2025-03-09 01:44:57,024 INFO L226 Difference]: Without dead ends: 28 [2025-03-09 01:44:57,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:44:57,025 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 15 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:44:57,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 72 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:44:57,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-03-09 01:44:57,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2025-03-09 01:44:57,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 01:44:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2025-03-09 01:44:57,029 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 15 [2025-03-09 01:44:57,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:44:57,029 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2025-03-09 01:44:57,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 01:44:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2025-03-09 01:44:57,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-09 01:44:57,030 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:44:57,030 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:44:57,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 01:44:57,030 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:44:57,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:44:57,033 INFO L85 PathProgramCache]: Analyzing trace with hash -531735925, now seen corresponding path program 1 times [2025-03-09 01:44:57,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:44:57,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246338092] [2025-03-09 01:44:57,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:44:57,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:44:57,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 01:44:57,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 01:44:57,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:44:57,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:44:57,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:44:57,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246338092] [2025-03-09 01:44:57,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246338092] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:44:57,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:44:57,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:44:57,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747721702] [2025-03-09 01:44:57,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:44:57,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:44:57,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:44:57,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:44:57,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:44:57,101 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 01:44:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:44:57,127 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2025-03-09 01:44:57,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:44:57,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2025-03-09 01:44:57,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:44:57,128 INFO L225 Difference]: With dead ends: 37 [2025-03-09 01:44:57,128 INFO L226 Difference]: Without dead ends: 36 [2025-03-09 01:44:57,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:44:57,128 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:44:57,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 78 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:44:57,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-03-09 01:44:57,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-03-09 01:44:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 01:44:57,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2025-03-09 01:44:57,133 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 16 [2025-03-09 01:44:57,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:44:57,134 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2025-03-09 01:44:57,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 01:44:57,134 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2025-03-09 01:44:57,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-09 01:44:57,135 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:44:57,135 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-09 01:44:57,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:44:57,135 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:44:57,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:44:57,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2063298061, now seen corresponding path program 1 times [2025-03-09 01:44:57,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:44:57,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058677522] [2025-03-09 01:44:57,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:44:57,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:44:57,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 01:44:57,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 01:44:57,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:44:57,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:57,226 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 01:44:57,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:44:57,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058677522] [2025-03-09 01:44:57,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058677522] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:44:57,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794412363] [2025-03-09 01:44:57,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:44:57,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:44:57,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:44:57,230 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:44:57,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 01:44:57,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 01:44:57,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 01:44:57,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:44:57,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:57,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 01:44:57,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:44:57,332 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 01:44:57,333 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 01:44:57,419 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 01:44:57,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794412363] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 01:44:57,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 01:44:57,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-09 01:44:57,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369717368] [2025-03-09 01:44:57,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 01:44:57,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 01:44:57,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:44:57,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 01:44:57,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-09 01:44:57,421 INFO L87 Difference]: Start difference. First operand 36 states and 48 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-09 01:44:57,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:44:57,504 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2025-03-09 01:44:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 01:44:57,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 30 [2025-03-09 01:44:57,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:44:57,505 INFO L225 Difference]: With dead ends: 61 [2025-03-09 01:44:57,506 INFO L226 Difference]: Without dead ends: 60 [2025-03-09 01:44:57,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-09 01:44:57,506 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 32 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 01:44:57,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 126 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 01:44:57,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-03-09 01:44:57,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2025-03-09 01:44:57,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 46 states have internal predecessors, (57), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 01:44:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2025-03-09 01:44:57,520 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 30 [2025-03-09 01:44:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:44:57,520 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions. [2025-03-09 01:44:57,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-09 01:44:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2025-03-09 01:44:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-09 01:44:57,524 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:44:57,524 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2025-03-09 01:44:57,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 01:44:57,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:44:57,725 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:44:57,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:44:57,726 INFO L85 PathProgramCache]: Analyzing trace with hash -183847893, now seen corresponding path program 2 times [2025-03-09 01:44:57,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:44:57,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790385794] [2025-03-09 01:44:57,728 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:44:57,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:44:57,739 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-03-09 01:44:57,755 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 01:44:57,756 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 01:44:57,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:58,002 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 01:44:58,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:44:58,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790385794] [2025-03-09 01:44:58,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790385794] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:44:58,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950686176] [2025-03-09 01:44:58,003 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:44:58,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:44:58,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:44:58,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:44:58,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 01:44:58,039 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-03-09 01:44:58,060 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 01:44:58,060 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 01:44:58,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:58,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-09 01:44:58,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:44:58,130 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 01:44:58,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 01:44:58,358 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 01:44:58,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950686176] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 01:44:58,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 01:44:58,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2025-03-09 01:44:58,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872737604] [2025-03-09 01:44:58,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 01:44:58,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-09 01:44:58,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:44:58,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-09 01:44:58,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-03-09 01:44:58,362 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand has 22 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 22 states have internal predecessors, (67), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2025-03-09 01:44:58,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:44:58,472 INFO L93 Difference]: Finished difference Result 109 states and 153 transitions. [2025-03-09 01:44:58,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-09 01:44:58,473 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 22 states have internal predecessors, (67), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 72 [2025-03-09 01:44:58,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:44:58,474 INFO L225 Difference]: With dead ends: 109 [2025-03-09 01:44:58,475 INFO L226 Difference]: Without dead ends: 108 [2025-03-09 01:44:58,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-03-09 01:44:58,475 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 62 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 01:44:58,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 150 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 01:44:58,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2025-03-09 01:44:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2025-03-09 01:44:58,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 81 states have (on average 1.2222222222222223) internal successors, (99), 82 states have internal predecessors, (99), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-09 01:44:58,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2025-03-09 01:44:58,484 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 72 [2025-03-09 01:44:58,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:44:58,484 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2025-03-09 01:44:58,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 22 states have internal predecessors, (67), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2025-03-09 01:44:58,484 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2025-03-09 01:44:58,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-09 01:44:58,490 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:44:58,490 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2025-03-09 01:44:58,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 01:44:58,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-09 01:44:58,690 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:44:58,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:44:58,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2011145883, now seen corresponding path program 3 times [2025-03-09 01:44:58,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:44:58,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362677822] [2025-03-09 01:44:58,691 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 01:44:58,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:44:58,703 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 156 statements into 11 equivalence classes. [2025-03-09 01:44:58,715 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 156 of 156 statements. [2025-03-09 01:44:58,715 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-09 01:44:58,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:59,326 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2025-03-09 01:44:59,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:44:59,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362677822] [2025-03-09 01:44:59,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362677822] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:44:59,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198745476] [2025-03-09 01:44:59,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 01:44:59,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:44:59,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:44:59,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:44:59,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 01:44:59,370 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 156 statements into 11 equivalence classes. [2025-03-09 01:44:59,420 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 156 of 156 statements. [2025-03-09 01:44:59,420 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-09 01:44:59,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:44:59,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 01:44:59,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:44:59,566 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2025-03-09 01:44:59,567 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 01:45:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2025-03-09 01:45:00,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198745476] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 01:45:00,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 01:45:00,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2025-03-09 01:45:00,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254227385] [2025-03-09 01:45:00,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 01:45:00,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-03-09 01:45:00,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:45:00,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-03-09 01:45:00,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-03-09 01:45:00,166 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand has 46 states, 45 states have (on average 3.088888888888889) internal successors, (139), 46 states have internal predecessors, (139), 22 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 22 states have call predecessors, (44), 22 states have call successors, (44) [2025-03-09 01:45:00,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:45:00,382 INFO L93 Difference]: Finished difference Result 205 states and 291 transitions. [2025-03-09 01:45:00,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-09 01:45:00,383 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.088888888888889) internal successors, (139), 46 states have internal predecessors, (139), 22 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 22 states have call predecessors, (44), 22 states have call successors, (44) Word has length 156 [2025-03-09 01:45:00,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:45:00,386 INFO L225 Difference]: With dead ends: 205 [2025-03-09 01:45:00,386 INFO L226 Difference]: Without dead ends: 204 [2025-03-09 01:45:00,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-03-09 01:45:00,388 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 83 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 01:45:00,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 216 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 01:45:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-03-09 01:45:00,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2025-03-09 01:45:00,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 153 states have (on average 1.196078431372549) internal successors, (183), 154 states have internal predecessors, (183), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2025-03-09 01:45:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 279 transitions. [2025-03-09 01:45:00,415 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 279 transitions. Word has length 156 [2025-03-09 01:45:00,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:45:00,415 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 279 transitions. [2025-03-09 01:45:00,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.088888888888889) internal successors, (139), 46 states have internal predecessors, (139), 22 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 22 states have call predecessors, (44), 22 states have call successors, (44) [2025-03-09 01:45:00,416 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 279 transitions. [2025-03-09 01:45:00,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2025-03-09 01:45:00,422 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:45:00,422 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2025-03-09 01:45:00,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 01:45:00,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:45:00,623 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:45:00,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:45:00,623 INFO L85 PathProgramCache]: Analyzing trace with hash 849232763, now seen corresponding path program 4 times [2025-03-09 01:45:00,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:45:00,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807170897] [2025-03-09 01:45:00,623 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 01:45:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:45:00,637 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 324 statements into 2 equivalence classes. [2025-03-09 01:45:00,657 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 324 of 324 statements. [2025-03-09 01:45:00,657 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 01:45:00,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:45:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 2068 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2025-03-09 01:45:02,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:45:02,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807170897] [2025-03-09 01:45:02,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807170897] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:45:02,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612396168] [2025-03-09 01:45:02,580 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 01:45:02,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:45:02,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:45:02,583 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 01:45:02,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 01:45:02,627 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 324 statements into 2 equivalence classes. [2025-03-09 01:45:02,691 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 324 of 324 statements. [2025-03-09 01:45:02,691 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 01:45:02,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:45:02,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-09 01:45:02,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:45:02,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 2002 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2025-03-09 01:45:02,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 01:45:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 2002 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2025-03-09 01:45:04,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612396168] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 01:45:04,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 01:45:04,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 47, 47] total 97 [2025-03-09 01:45:04,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917460365] [2025-03-09 01:45:04,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 01:45:04,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2025-03-09 01:45:04,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:45:04,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2025-03-09 01:45:04,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=7196, Unknown=0, NotChecked=0, Total=9506 [2025-03-09 01:45:04,788 INFO L87 Difference]: Start difference. First operand 204 states and 279 transitions. Second operand has 98 states, 97 states have (on average 2.9690721649484537) internal successors, (288), 97 states have internal predecessors, (288), 47 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 46 states have call predecessors, (93), 47 states have call successors, (93) [2025-03-09 01:45:07,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:45:07,843 INFO L93 Difference]: Finished difference Result 1010 states and 1627 transitions. [2025-03-09 01:45:07,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2025-03-09 01:45:07,844 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 2.9690721649484537) internal successors, (288), 97 states have internal predecessors, (288), 47 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 46 states have call predecessors, (93), 47 states have call successors, (93) Word has length 324 [2025-03-09 01:45:07,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:45:07,851 INFO L225 Difference]: With dead ends: 1010 [2025-03-09 01:45:07,851 INFO L226 Difference]: Without dead ends: 809 [2025-03-09 01:45:07,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9457 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=6868, Invalid=29422, Unknown=0, NotChecked=0, Total=36290 [2025-03-09 01:45:07,861 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 628 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-09 01:45:07,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 408 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-09 01:45:07,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2025-03-09 01:45:07,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 792. [2025-03-09 01:45:07,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 593 states have (on average 1.178752107925801) internal successors, (699), 597 states have internal predecessors, (699), 192 states have call successors, (192), 4 states have call predecessors, (192), 6 states have return successors, (336), 192 states have call predecessors, (336), 192 states have call successors, (336) [2025-03-09 01:45:07,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1227 transitions. [2025-03-09 01:45:07,955 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1227 transitions. Word has length 324 [2025-03-09 01:45:07,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:45:07,957 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1227 transitions. [2025-03-09 01:45:07,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 2.9690721649484537) internal successors, (288), 97 states have internal predecessors, (288), 47 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 46 states have call predecessors, (93), 47 states have call successors, (93) [2025-03-09 01:45:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1227 transitions. [2025-03-09 01:45:07,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2025-03-09 01:45:07,969 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:45:07,969 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 46, 46, 1, 1, 1, 1] [2025-03-09 01:45:07,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-09 01:45:08,173 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 01:45:08,173 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:45:08,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:45:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1761500475, now seen corresponding path program 5 times [2025-03-09 01:45:08,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:45:08,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193068959] [2025-03-09 01:45:08,174 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 01:45:08,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:45:08,187 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 660 statements into 47 equivalence classes. [2025-03-09 01:45:08,311 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 660 of 660 statements. [2025-03-09 01:45:08,311 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-09 01:45:08,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:45:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 15088 backedges. 0 proven. 8602 refuted. 0 times theorem prover too weak. 6486 trivial. 0 not checked. [2025-03-09 01:45:13,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:45:13,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193068959] [2025-03-09 01:45:13,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193068959] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:45:13,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020513475] [2025-03-09 01:45:13,221 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 01:45:13,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:45:13,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:45:13,223 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 01:45:13,225 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 01:45:13,280 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 660 statements into 47 equivalence classes. [2025-03-09 01:45:13,448 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 660 of 660 statements. [2025-03-09 01:45:13,448 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-09 01:45:13,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:45:13,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-03-09 01:45:13,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:45:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 15088 backedges. 0 proven. 8602 refuted. 0 times theorem prover too weak. 6486 trivial. 0 not checked. [2025-03-09 01:45:13,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 01:45:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 15088 backedges. 0 proven. 8602 refuted. 0 times theorem prover too weak. 6486 trivial. 0 not checked. [2025-03-09 01:45:18,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020513475] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 01:45:18,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 01:45:18,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2025-03-09 01:45:18,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61393647] [2025-03-09 01:45:18,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 01:45:18,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2025-03-09 01:45:18,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:45:18,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2025-03-09 01:45:18,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2025-03-09 01:45:18,759 INFO L87 Difference]: Start difference. First operand 792 states and 1227 transitions. Second operand has 190 states, 189 states have (on average 3.0211640211640214) internal successors, (571), 190 states have internal predecessors, (571), 94 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 94 states have call predecessors, (188), 94 states have call successors, (188) [2025-03-09 01:45:19,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:45:19,793 INFO L93 Difference]: Finished difference Result 1561 states and 2523 transitions. [2025-03-09 01:45:19,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2025-03-09 01:45:19,794 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.0211640211640214) internal successors, (571), 190 states have internal predecessors, (571), 94 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 94 states have call predecessors, (188), 94 states have call successors, (188) Word has length 660 [2025-03-09 01:45:19,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:45:19,805 INFO L225 Difference]: With dead ends: 1561 [2025-03-09 01:45:19,806 INFO L226 Difference]: Without dead ends: 1560 [2025-03-09 01:45:19,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1413 GetRequests, 1225 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2025-03-09 01:45:19,810 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 386 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-09 01:45:19,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 570 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-09 01:45:19,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2025-03-09 01:45:19,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1560. [2025-03-09 01:45:19,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1169 states have (on average 1.172797262617622) internal successors, (1371), 1173 states have internal predecessors, (1371), 384 states have call successors, (384), 4 states have call predecessors, (384), 6 states have return successors, (672), 384 states have call predecessors, (672), 384 states have call successors, (672) [2025-03-09 01:45:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2427 transitions. [2025-03-09 01:45:19,876 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2427 transitions. Word has length 660 [2025-03-09 01:45:19,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:45:19,877 INFO L471 AbstractCegarLoop]: Abstraction has 1560 states and 2427 transitions. [2025-03-09 01:45:19,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.0211640211640214) internal successors, (571), 190 states have internal predecessors, (571), 94 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 94 states have call predecessors, (188), 94 states have call successors, (188) [2025-03-09 01:45:19,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2427 transitions. [2025-03-09 01:45:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1333 [2025-03-09 01:45:19,911 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:45:19,912 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 94, 94, 1, 1, 1, 1] [2025-03-09 01:45:19,920 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 01:45:20,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:45:20,112 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:45:20,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:45:20,113 INFO L85 PathProgramCache]: Analyzing trace with hash 231346363, now seen corresponding path program 6 times [2025-03-09 01:45:20,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:45:20,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335794911] [2025-03-09 01:45:20,113 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-09 01:45:20,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:45:20,142 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1332 statements into 95 equivalence classes. [2025-03-09 01:45:20,520 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 1332 of 1332 statements. [2025-03-09 01:45:20,520 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-09 01:45:20,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:45:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 62416 backedges. 0 proven. 35626 refuted. 0 times theorem prover too weak. 26790 trivial. 0 not checked. [2025-03-09 01:45:44,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:45:44,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335794911] [2025-03-09 01:45:44,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335794911] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:45:44,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387918240] [2025-03-09 01:45:44,774 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-09 01:45:44,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:45:44,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:45:44,775 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 01:45:44,777 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 01:45:44,862 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1332 statements into 95 equivalence classes. [2025-03-09 01:45:45,370 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 1332 of 1332 statements. [2025-03-09 01:45:45,371 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-09 01:45:45,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:45:45,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 3239 conjuncts, 191 conjuncts are in the unsatisfiable core [2025-03-09 01:45:45,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:45:46,080 INFO L134 CoverageAnalysis]: Checked inductivity of 62416 backedges. 0 proven. 35626 refuted. 0 times theorem prover too weak. 26790 trivial. 0 not checked. [2025-03-09 01:45:46,080 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 01:46:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 62416 backedges. 0 proven. 35626 refuted. 0 times theorem prover too weak. 26790 trivial. 0 not checked. [2025-03-09 01:46:04,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387918240] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 01:46:04,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 01:46:04,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 191, 191] total 383 [2025-03-09 01:46:04,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628764568] [2025-03-09 01:46:04,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 01:46:05,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2025-03-09 01:46:05,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:46:05,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2025-03-09 01:46:05,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36917, Invalid=110155, Unknown=0, NotChecked=0, Total=147072 [2025-03-09 01:46:05,020 INFO L87 Difference]: Start difference. First operand 1560 states and 2427 transitions. Second operand has 384 states, 383 states have (on average 3.0078328981723237) internal successors, (1152), 384 states have internal predecessors, (1152), 191 states have call successors, (381), 1 states have call predecessors, (381), 1 states have return successors, (381), 191 states have call predecessors, (381), 191 states have call successors, (381) [2025-03-09 01:46:18,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:46:18,565 INFO L93 Difference]: Finished difference Result 4771 states and 7547 transitions. [2025-03-09 01:46:18,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 452 states. [2025-03-09 01:46:18,567 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 3.0078328981723237) internal successors, (1152), 384 states have internal predecessors, (1152), 191 states have call successors, (381), 1 states have call predecessors, (381), 1 states have return successors, (381), 191 states have call predecessors, (381), 191 states have call successors, (381) Word has length 1332 [2025-03-09 01:46:18,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:46:18,582 INFO L225 Difference]: With dead ends: 4771 [2025-03-09 01:46:18,582 INFO L226 Difference]: Without dead ends: 3094 [2025-03-09 01:46:18,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2992 GetRequests, 2472 SyntacticMatches, 0 SemanticMatches, 520 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68089 ImplicationChecksByTransitivity, 31.9s TimeCoverageRelationStatistics Valid=63551, Invalid=208411, Unknown=0, NotChecked=0, Total=271962 [2025-03-09 01:46:18,597 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 874 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-09 01:46:18,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 663 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-09 01:46:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2025-03-09 01:46:18,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3094. [2025-03-09 01:46:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 2319 states have (on average 1.1095299698145753) internal successors, (2573), 2323 states have internal predecessors, (2573), 768 states have call successors, (768), 4 states have call predecessors, (768), 6 states have return successors, (1344), 768 states have call predecessors, (1344), 768 states have call successors, (1344) [2025-03-09 01:46:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 4685 transitions. [2025-03-09 01:46:18,696 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 4685 transitions. Word has length 1332 [2025-03-09 01:46:18,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:46:18,698 INFO L471 AbstractCegarLoop]: Abstraction has 3094 states and 4685 transitions. [2025-03-09 01:46:18,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 3.0078328981723237) internal successors, (1152), 384 states have internal predecessors, (1152), 191 states have call successors, (381), 1 states have call predecessors, (381), 1 states have return successors, (381), 191 states have call predecessors, (381), 191 states have call successors, (381) [2025-03-09 01:46:18,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 4685 transitions. [2025-03-09 01:46:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2677 [2025-03-09 01:46:18,735 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:46:18,736 INFO L218 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 191, 190, 190, 1, 1, 1, 1] [2025-03-09 01:46:18,747 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 01:46:18,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:46:18,937 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-09 01:46:18,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:46:18,938 INFO L85 PathProgramCache]: Analyzing trace with hash -611354693, now seen corresponding path program 7 times [2025-03-09 01:46:18,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:46:18,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302676189] [2025-03-09 01:46:18,938 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-09 01:46:18,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:46:18,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2676 statements into 1 equivalence classes. [2025-03-09 01:46:19,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2676 of 2676 statements. [2025-03-09 01:46:19,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:46:19,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat