./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/easy2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/easy2-2.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 0ba0e3ec7d24c78a29a4980275f3f450c6adf9cab13a788bc587b5f2c8c6cbd4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:45:24,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:45:24,656 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 14:45:24,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:45:24,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:45:24,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:45:24,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:45:24,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:45:24,685 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:45:24,685 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:45:24,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:45:24,685 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:45:24,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:45:24,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:45:24,686 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:45:24,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 14:45:24,687 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:45:24,688 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:45:24,688 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:45:24,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:45:24,688 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:45:24,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:45:24,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:45:24,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:45:24,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:45:24,689 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 14:45:24,689 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 14:45:24,689 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:45:24,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:45:24,689 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:45:24,689 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:45:24,689 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:45:24,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:45:24,689 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 -> 0ba0e3ec7d24c78a29a4980275f3f450c6adf9cab13a788bc587b5f2c8c6cbd4 [2025-03-17 14:45:24,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:45:24,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:45:24,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:45:24,898 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:45:24,899 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:45:24,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/easy2-2.c [2025-03-17 14:45:25,976 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a844c9b1d/0363ec3e4c3845d491798f6cf2e176c8/FLAG341a489ba [2025-03-17 14:45:26,186 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:45:26,187 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/easy2-2.c [2025-03-17 14:45:26,211 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a844c9b1d/0363ec3e4c3845d491798f6cf2e176c8/FLAG341a489ba [2025-03-17 14:45:26,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a844c9b1d/0363ec3e4c3845d491798f6cf2e176c8 [2025-03-17 14:45:26,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:45:26,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:45:26,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:45:26,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:45:26,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:45:26,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369c26a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26, skipping insertion in model container [2025-03-17 14:45:26,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:45:26,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:45:26,328 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:45:26,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:45:26,341 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:45:26,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26 WrapperNode [2025-03-17 14:45:26,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:45:26,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:45:26,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:45:26,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:45:26,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,359 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2025-03-17 14:45:26,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:45:26,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:45:26,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:45:26,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:45:26,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,364 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,367 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 14:45:26,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,368 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:45:26,373 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:45:26,373 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:45:26,373 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:45:26,374 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (1/1) ... [2025-03-17 14:45:26,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:45:26,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:26,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 14:45:26,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 14:45:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:45:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:45:26,450 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:45:26,451 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:45:26,508 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-17 14:45:26,508 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:45:26,515 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:45:26,515 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:45:26,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:45:26 BoogieIcfgContainer [2025-03-17 14:45:26,516 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:45:26,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:45:26,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:45:26,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:45:26,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:45:26" (1/3) ... [2025-03-17 14:45:26,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26187e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:45:26, skipping insertion in model container [2025-03-17 14:45:26,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:45:26" (2/3) ... [2025-03-17 14:45:26,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26187e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:45:26, skipping insertion in model container [2025-03-17 14:45:26,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:45:26" (3/3) ... [2025-03-17 14:45:26,522 INFO L128 eAbstractionObserver]: Analyzing ICFG easy2-2.c [2025-03-17 14:45:26,532 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:45:26,534 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG easy2-2.c that has 1 procedures, 16 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2025-03-17 14:45:26,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:45:26,580 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;@5dfa02f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:45:26,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-03-17 14:45:26,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 14:45:26,588 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:26,589 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 14:45:26,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:26,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:26,594 INFO L85 PathProgramCache]: Analyzing trace with hash 43660, now seen corresponding path program 1 times [2025-03-17 14:45:26,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:26,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095660954] [2025-03-17 14:45:26,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:26,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:26,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 14:45:26,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 14:45:26,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:26,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:26,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:26,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:26,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095660954] [2025-03-17 14:45:26,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095660954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:45:26,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:45:26,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:45:26,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632590109] [2025-03-17 14:45:26,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:45:26,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:45:26,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:26,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:45:26,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,716 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:26,736 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2025-03-17 14:45:26,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:45:26,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-03-17 14:45:26,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:26,742 INFO L225 Difference]: With dead ends: 16 [2025-03-17 14:45:26,742 INFO L226 Difference]: Without dead ends: 13 [2025-03-17 14:45:26,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,748 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:26,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 13 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:26,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-03-17 14:45:26,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-03-17 14:45:26,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.625) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2025-03-17 14:45:26,775 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 3 [2025-03-17 14:45:26,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:26,775 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-03-17 14:45:26,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,775 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2025-03-17 14:45:26,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 14:45:26,776 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:26,776 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 14:45:26,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:45:26,777 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:26,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:26,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1353439, now seen corresponding path program 1 times [2025-03-17 14:45:26,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:26,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470436879] [2025-03-17 14:45:26,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:26,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:26,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 14:45:26,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 14:45:26,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:26,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:26,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:26,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:26,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470436879] [2025-03-17 14:45:26,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470436879] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:45:26,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:45:26,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:45:26,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956679938] [2025-03-17 14:45:26,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:45:26,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:45:26,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:26,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:45:26,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,817 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:26,824 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2025-03-17 14:45:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:45:26,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-17 14:45:26,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:26,825 INFO L225 Difference]: With dead ends: 17 [2025-03-17 14:45:26,825 INFO L226 Difference]: Without dead ends: 16 [2025-03-17 14:45:26,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,825 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:26,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:26,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-03-17 14:45:26,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-03-17 14:45:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2025-03-17 14:45:26,828 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2025-03-17 14:45:26,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:26,828 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2025-03-17 14:45:26,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2025-03-17 14:45:26,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-17 14:45:26,828 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:26,828 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 14:45:26,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:45:26,828 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:26,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:26,829 INFO L85 PathProgramCache]: Analyzing trace with hash 41956586, now seen corresponding path program 1 times [2025-03-17 14:45:26,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:26,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238821894] [2025-03-17 14:45:26,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:26,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:26,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 14:45:26,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 14:45:26,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:26,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:26,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:26,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238821894] [2025-03-17 14:45:26,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238821894] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:45:26,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:45:26,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:45:26,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384491112] [2025-03-17 14:45:26,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:45:26,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:45:26,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:26,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:45:26,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,852 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:26,862 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2025-03-17 14:45:26,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:45:26,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-17 14:45:26,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:26,863 INFO L225 Difference]: With dead ends: 19 [2025-03-17 14:45:26,863 INFO L226 Difference]: Without dead ends: 18 [2025-03-17 14:45:26,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,863 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:26,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 18 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:26,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-03-17 14:45:26,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2025-03-17 14:45:26,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2025-03-17 14:45:26,867 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 5 [2025-03-17 14:45:26,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:26,867 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2025-03-17 14:45:26,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,867 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2025-03-17 14:45:26,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 14:45:26,868 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:26,868 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 14:45:26,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 14:45:26,868 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:26,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:26,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1300654141, now seen corresponding path program 1 times [2025-03-17 14:45:26,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:26,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769535039] [2025-03-17 14:45:26,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:26,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:26,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 14:45:26,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 14:45:26,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:26,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:26,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:26,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769535039] [2025-03-17 14:45:26,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769535039] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:45:26,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:45:26,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:45:26,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538792942] [2025-03-17 14:45:26,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:45:26,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:45:26,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:26,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:45:26,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,890 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:26,901 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2025-03-17 14:45:26,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:45:26,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-17 14:45:26,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:26,903 INFO L225 Difference]: With dead ends: 17 [2025-03-17 14:45:26,903 INFO L226 Difference]: Without dead ends: 16 [2025-03-17 14:45:26,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,904 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:26,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:26,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-03-17 14:45:26,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-03-17 14:45:26,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2025-03-17 14:45:26,906 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6 [2025-03-17 14:45:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:26,906 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2025-03-17 14:45:26,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2025-03-17 14:45:26,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 14:45:26,907 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:26,907 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:45:26,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 14:45:26,907 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:26,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:26,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1665572680, now seen corresponding path program 1 times [2025-03-17 14:45:26,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:26,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216076987] [2025-03-17 14:45:26,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:26,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:26,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 14:45:26,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 14:45:26,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:26,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:26,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:26,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216076987] [2025-03-17 14:45:26,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216076987] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:45:26,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:45:26,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:45:26,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843152319] [2025-03-17 14:45:26,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:45:26,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:45:26,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:26,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:45:26,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,939 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:26,950 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2025-03-17 14:45:26,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:45:26,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 14:45:26,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:26,951 INFO L225 Difference]: With dead ends: 16 [2025-03-17 14:45:26,951 INFO L226 Difference]: Without dead ends: 15 [2025-03-17 14:45:26,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,952 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:26,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:26,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-17 14:45:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-17 14:45:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2025-03-17 14:45:26,954 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2025-03-17 14:45:26,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:26,954 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2025-03-17 14:45:26,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,955 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2025-03-17 14:45:26,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-17 14:45:26,955 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:26,955 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:45:26,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 14:45:26,955 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:26,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:26,956 INFO L85 PathProgramCache]: Analyzing trace with hash 93145499, now seen corresponding path program 1 times [2025-03-17 14:45:26,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:26,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042478944] [2025-03-17 14:45:26,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:26,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:26,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 14:45:26,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 14:45:26,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:26,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:26,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:26,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:26,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042478944] [2025-03-17 14:45:26,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042478944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:45:26,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:45:26,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:45:26,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188326462] [2025-03-17 14:45:26,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:45:26,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:45:26,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:26,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:45:26,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,978 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:26,983 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2025-03-17 14:45:26,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:45:26,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-17 14:45:26,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:26,983 INFO L225 Difference]: With dead ends: 15 [2025-03-17 14:45:26,983 INFO L226 Difference]: Without dead ends: 14 [2025-03-17 14:45:26,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:45:26,984 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:26,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-03-17 14:45:26,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-03-17 14:45:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2025-03-17 14:45:26,986 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2025-03-17 14:45:26,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:26,987 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2025-03-17 14:45:26,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2025-03-17 14:45:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 14:45:26,987 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:26,987 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:45:26,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 14:45:26,988 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:26,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash 348670546, now seen corresponding path program 1 times [2025-03-17 14:45:26,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:26,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907506610] [2025-03-17 14:45:26,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:26,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:26,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 14:45:26,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 14:45:26,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:26,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:27,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:27,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:27,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907506610] [2025-03-17 14:45:27,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907506610] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:27,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045612381] [2025-03-17 14:45:27,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:27,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:27,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:27,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:27,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 14:45:27,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 14:45:27,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 14:45:27,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:27,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:27,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 14:45:27,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:27,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:27,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:27,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045612381] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:27,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:27,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2025-03-17 14:45:27,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711113997] [2025-03-17 14:45:27,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:27,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:45:27,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:27,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:45:27,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:45:27,140 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:27,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:27,164 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2025-03-17 14:45:27,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:45:27,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-03-17 14:45:27,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:27,165 INFO L225 Difference]: With dead ends: 37 [2025-03-17 14:45:27,165 INFO L226 Difference]: Without dead ends: 36 [2025-03-17 14:45:27,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:45:27,166 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:27,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 31 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:27,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-03-17 14:45:27,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2025-03-17 14:45:27,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:27,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2025-03-17 14:45:27,169 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 11 [2025-03-17 14:45:27,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:27,169 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2025-03-17 14:45:27,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:27,169 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2025-03-17 14:45:27,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 14:45:27,170 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:27,170 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 14:45:27,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 14:45:27,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:27,372 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:27,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2076114985, now seen corresponding path program 1 times [2025-03-17 14:45:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:27,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880560846] [2025-03-17 14:45:27,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:27,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:27,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 14:45:27,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 14:45:27,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:27,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:27,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:27,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:27,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880560846] [2025-03-17 14:45:27,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880560846] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:27,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628331149] [2025-03-17 14:45:27,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:45:27,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:27,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:27,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:27,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 14:45:27,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 14:45:27,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 14:45:27,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:45:27,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:27,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 14:45:27,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:27,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:27,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628331149] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:27,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:27,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2025-03-17 14:45:27,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261665558] [2025-03-17 14:45:27,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:27,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:45:27,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:27,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:45:27,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:45:27,503 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:27,516 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2025-03-17 14:45:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:45:27,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-17 14:45:27,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:27,517 INFO L225 Difference]: With dead ends: 36 [2025-03-17 14:45:27,517 INFO L226 Difference]: Without dead ends: 35 [2025-03-17 14:45:27,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:45:27,518 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:27,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 30 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:27,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-17 14:45:27,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-03-17 14:45:27,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2025-03-17 14:45:27,521 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 12 [2025-03-17 14:45:27,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:27,521 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2025-03-17 14:45:27,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2025-03-17 14:45:27,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-17 14:45:27,521 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:27,521 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1] [2025-03-17 14:45:27,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 14:45:27,725 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,SelfDestructingSolverStorable7 [2025-03-17 14:45:27,725 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:27,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:27,725 INFO L85 PathProgramCache]: Analyzing trace with hash -651386849, now seen corresponding path program 2 times [2025-03-17 14:45:27,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:27,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103762393] [2025-03-17 14:45:27,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:45:27,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:27,733 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 2 equivalence classes. [2025-03-17 14:45:27,743 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 14:45:27,743 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:45:27,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:27,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:27,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103762393] [2025-03-17 14:45:27,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103762393] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:27,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573532112] [2025-03-17 14:45:27,832 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:45:27,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:27,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:27,834 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:27,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 14:45:27,853 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 2 equivalence classes. [2025-03-17 14:45:27,862 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 14:45:27,862 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:45:27,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:27,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 14:45:27,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:27,904 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:27,904 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:27,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573532112] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:27,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:27,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 14:45:27,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573061408] [2025-03-17 14:45:27,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:27,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 14:45:27,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:27,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 14:45:27,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:45:27,983 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:28,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:28,019 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2025-03-17 14:45:28,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 14:45:28,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2025-03-17 14:45:28,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:28,020 INFO L225 Difference]: With dead ends: 82 [2025-03-17 14:45:28,020 INFO L226 Difference]: Without dead ends: 81 [2025-03-17 14:45:28,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:45:28,021 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 15 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:28,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 65 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:28,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-03-17 14:45:28,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2025-03-17 14:45:28,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 75 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:28,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2025-03-17 14:45:28,026 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 32 [2025-03-17 14:45:28,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:28,026 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2025-03-17 14:45:28,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:28,026 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2025-03-17 14:45:28,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-17 14:45:28,027 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:28,027 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1] [2025-03-17 14:45:28,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 14:45:28,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:28,227 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:28,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:28,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1281844138, now seen corresponding path program 2 times [2025-03-17 14:45:28,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:28,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144957843] [2025-03-17 14:45:28,228 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:45:28,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:28,232 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 2 equivalence classes. [2025-03-17 14:45:28,235 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 14:45:28,235 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:45:28,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:28,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:28,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144957843] [2025-03-17 14:45:28,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144957843] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:28,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662831763] [2025-03-17 14:45:28,320 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:45:28,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:28,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:28,322 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:28,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 14:45:28,339 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 2 equivalence classes. [2025-03-17 14:45:28,347 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 14:45:28,347 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:45:28,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:28,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 14:45:28,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:28,386 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:28,469 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:28,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662831763] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:28,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:28,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 14:45:28,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162566887] [2025-03-17 14:45:28,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:28,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 14:45:28,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:28,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 14:45:28,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:45:28,475 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:28,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:28,502 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2025-03-17 14:45:28,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 14:45:28,503 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2025-03-17 14:45:28,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:28,503 INFO L225 Difference]: With dead ends: 78 [2025-03-17 14:45:28,504 INFO L226 Difference]: Without dead ends: 77 [2025-03-17 14:45:28,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:45:28,504 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:28,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 62 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:28,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-17 14:45:28,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-03-17 14:45:28,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.0266666666666666) internal successors, (77), 76 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:28,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2025-03-17 14:45:28,509 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 33 [2025-03-17 14:45:28,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:28,509 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2025-03-17 14:45:28,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:28,510 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2025-03-17 14:45:28,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-17 14:45:28,511 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:28,511 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1] [2025-03-17 14:45:28,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 14:45:28,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:28,711 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:28,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:28,712 INFO L85 PathProgramCache]: Analyzing trace with hash -236609025, now seen corresponding path program 3 times [2025-03-17 14:45:28,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:28,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100668973] [2025-03-17 14:45:28,712 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:45:28,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:28,730 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 74 statements into 11 equivalence classes. [2025-03-17 14:45:28,739 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 14:45:28,739 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:45:28,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:28,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:28,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100668973] [2025-03-17 14:45:28,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100668973] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:28,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035769790] [2025-03-17 14:45:28,893 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:45:28,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:28,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:28,894 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:28,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 14:45:28,913 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 74 statements into 11 equivalence classes. [2025-03-17 14:45:28,929 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 14:45:28,929 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:45:28,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:28,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:45:28,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:29,019 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:29,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035769790] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:29,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:29,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2025-03-17 14:45:29,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050604762] [2025-03-17 14:45:29,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:29,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 14:45:29,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:29,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 14:45:29,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:45:29,257 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:29,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:29,321 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2025-03-17 14:45:29,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-17 14:45:29,321 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2025-03-17 14:45:29,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:29,322 INFO L225 Difference]: With dead ends: 172 [2025-03-17 14:45:29,322 INFO L226 Difference]: Without dead ends: 171 [2025-03-17 14:45:29,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:45:29,323 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 25 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:29,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 130 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:45:29,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2025-03-17 14:45:29,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 160. [2025-03-17 14:45:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0822784810126582) internal successors, (171), 159 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 171 transitions. [2025-03-17 14:45:29,330 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 171 transitions. Word has length 74 [2025-03-17 14:45:29,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:29,330 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 171 transitions. [2025-03-17 14:45:29,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.434782608695652) internal successors, (148), 23 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:29,330 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 171 transitions. [2025-03-17 14:45:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 14:45:29,331 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:29,331 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1] [2025-03-17 14:45:29,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 14:45:29,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-17 14:45:29,535 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:29,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:29,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1255054794, now seen corresponding path program 3 times [2025-03-17 14:45:29,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:29,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762932227] [2025-03-17 14:45:29,535 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:45:29,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:29,540 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 11 equivalence classes. [2025-03-17 14:45:29,551 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 14:45:29,551 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:45:29,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:29,687 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:29,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:29,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762932227] [2025-03-17 14:45:29,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762932227] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:29,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073405787] [2025-03-17 14:45:29,687 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:45:29,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:29,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:29,691 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:29,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 14:45:29,710 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 11 equivalence classes. [2025-03-17 14:45:29,726 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 14:45:29,726 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:45:29,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:29,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:45:29,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:29,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:30,022 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:30,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073405787] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:30,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:30,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2025-03-17 14:45:30,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524841481] [2025-03-17 14:45:30,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:30,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 14:45:30,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:30,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 14:45:30,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:45:30,026 INFO L87 Difference]: Start difference. First operand 160 states and 171 transitions. Second operand has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:30,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:30,084 INFO L93 Difference]: Finished difference Result 162 states and 173 transitions. [2025-03-17 14:45:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-17 14:45:30,084 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2025-03-17 14:45:30,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:30,085 INFO L225 Difference]: With dead ends: 162 [2025-03-17 14:45:30,085 INFO L226 Difference]: Without dead ends: 161 [2025-03-17 14:45:30,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:45:30,086 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:30,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 124 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:45:30,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-03-17 14:45:30,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2025-03-17 14:45:30,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 159 states have (on average 1.0125786163522013) internal successors, (161), 160 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2025-03-17 14:45:30,099 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 75 [2025-03-17 14:45:30,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:30,099 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2025-03-17 14:45:30,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:30,099 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2025-03-17 14:45:30,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-17 14:45:30,100 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:30,100 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1] [2025-03-17 14:45:30,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 14:45:30,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:30,301 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:30,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:30,301 INFO L85 PathProgramCache]: Analyzing trace with hash 60071359, now seen corresponding path program 4 times [2025-03-17 14:45:30,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:30,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140099175] [2025-03-17 14:45:30,302 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:45:30,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:30,308 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 158 statements into 2 equivalence classes. [2025-03-17 14:45:30,320 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 14:45:30,320 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:45:30,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:30,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:30,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140099175] [2025-03-17 14:45:30,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140099175] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:30,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351355468] [2025-03-17 14:45:30,785 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:45:30,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:30,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:30,787 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:30,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 14:45:30,810 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 158 statements into 2 equivalence classes. [2025-03-17 14:45:30,839 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 158 of 158 statements. [2025-03-17 14:45:30,839 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:45:30,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:30,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-17 14:45:30,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:30,987 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:31,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:31,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351355468] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:31,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:31,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2025-03-17 14:45:31,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583169977] [2025-03-17 14:45:31,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:31,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-03-17 14:45:31,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:31,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-03-17 14:45:31,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-03-17 14:45:31,693 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand has 48 states, 47 states have (on average 6.723404255319149) internal successors, (316), 47 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:31,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:31,817 INFO L93 Difference]: Finished difference Result 352 states and 375 transitions. [2025-03-17 14:45:31,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-17 14:45:31,817 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.723404255319149) internal successors, (316), 47 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2025-03-17 14:45:31,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:31,819 INFO L225 Difference]: With dead ends: 352 [2025-03-17 14:45:31,820 INFO L226 Difference]: Without dead ends: 351 [2025-03-17 14:45:31,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-03-17 14:45:31,821 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 71 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:31,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 266 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:45:31,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2025-03-17 14:45:31,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 328. [2025-03-17 14:45:31,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 326 states have (on average 1.0766871165644172) internal successors, (351), 327 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:31,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 351 transitions. [2025-03-17 14:45:31,838 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 351 transitions. Word has length 158 [2025-03-17 14:45:31,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:31,838 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 351 transitions. [2025-03-17 14:45:31,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.723404255319149) internal successors, (316), 47 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:31,838 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 351 transitions. [2025-03-17 14:45:31,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-03-17 14:45:31,839 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:31,839 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1] [2025-03-17 14:45:31,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 14:45:32,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:32,040 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:32,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:32,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1862212106, now seen corresponding path program 4 times [2025-03-17 14:45:32,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:32,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486128752] [2025-03-17 14:45:32,040 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:45:32,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:32,046 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-17 14:45:32,054 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 14:45:32,054 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:45:32,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:32,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:32,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:32,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486128752] [2025-03-17 14:45:32,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486128752] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:32,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117867406] [2025-03-17 14:45:32,565 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:45:32,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:32,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:32,567 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:32,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 14:45:32,599 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-03-17 14:45:32,627 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-03-17 14:45:32,628 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:45:32,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:32,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-17 14:45:32,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:32,796 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:33,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:33,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117867406] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:33,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:33,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2025-03-17 14:45:33,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608579704] [2025-03-17 14:45:33,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:33,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-03-17 14:45:33,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:33,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-03-17 14:45:33,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-03-17 14:45:33,499 INFO L87 Difference]: Start difference. First operand 328 states and 351 transitions. Second operand has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:33,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:33,622 INFO L93 Difference]: Finished difference Result 330 states and 353 transitions. [2025-03-17 14:45:33,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-17 14:45:33,622 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2025-03-17 14:45:33,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:33,624 INFO L225 Difference]: With dead ends: 330 [2025-03-17 14:45:33,624 INFO L226 Difference]: Without dead ends: 329 [2025-03-17 14:45:33,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-03-17 14:45:33,625 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:33,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 244 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:45:33,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2025-03-17 14:45:33,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2025-03-17 14:45:33,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 327 states have (on average 1.0061162079510704) internal successors, (329), 328 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:33,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 329 transitions. [2025-03-17 14:45:33,636 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 329 transitions. Word has length 159 [2025-03-17 14:45:33,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:33,636 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 329 transitions. [2025-03-17 14:45:33,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:33,636 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 329 transitions. [2025-03-17 14:45:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2025-03-17 14:45:33,642 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:33,642 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1] [2025-03-17 14:45:33,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 14:45:33,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-17 14:45:33,846 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:33,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:33,846 INFO L85 PathProgramCache]: Analyzing trace with hash -512854721, now seen corresponding path program 5 times [2025-03-17 14:45:33,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:33,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100864279] [2025-03-17 14:45:33,847 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:45:33,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:33,855 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 326 statements into 47 equivalence classes. [2025-03-17 14:45:33,945 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 326 of 326 statements. [2025-03-17 14:45:33,946 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:45:33,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:35,384 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:35,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:35,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100864279] [2025-03-17 14:45:35,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100864279] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:35,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168422787] [2025-03-17 14:45:35,385 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:45:35,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:35,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:35,387 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:35,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 14:45:35,418 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 326 statements into 47 equivalence classes. [2025-03-17 14:45:35,501 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 326 of 326 statements. [2025-03-17 14:45:35,501 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:45:35,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:35,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-17 14:45:35,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:35,788 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:37,716 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:37,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168422787] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:37,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:37,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2025-03-17 14:45:37,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353195550] [2025-03-17 14:45:37,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:37,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-03-17 14:45:37,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:37,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-03-17 14:45:37,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 14:45:37,721 INFO L87 Difference]: Start difference. First operand 329 states and 329 transitions. Second operand has 96 states, 95 states have (on average 6.863157894736842) internal successors, (652), 95 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:38,031 INFO L93 Difference]: Finished difference Result 712 states and 759 transitions. [2025-03-17 14:45:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-03-17 14:45:38,031 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.863157894736842) internal successors, (652), 95 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2025-03-17 14:45:38,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:38,033 INFO L225 Difference]: With dead ends: 712 [2025-03-17 14:45:38,033 INFO L226 Difference]: Without dead ends: 711 [2025-03-17 14:45:38,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 603 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 14:45:38,035 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 155 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:38,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 533 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:45:38,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2025-03-17 14:45:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 664. [2025-03-17 14:45:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 662 states have (on average 1.0740181268882176) internal successors, (711), 663 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 711 transitions. [2025-03-17 14:45:38,046 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 711 transitions. Word has length 326 [2025-03-17 14:45:38,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:38,047 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 711 transitions. [2025-03-17 14:45:38,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.863157894736842) internal successors, (652), 95 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:38,047 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 711 transitions. [2025-03-17 14:45:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2025-03-17 14:45:38,049 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:38,049 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1] [2025-03-17 14:45:38,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 14:45:38,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 14:45:38,253 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:38,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:38,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1281372810, now seen corresponding path program 5 times [2025-03-17 14:45:38,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:38,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20859384] [2025-03-17 14:45:38,254 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:45:38,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:38,261 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 327 statements into 47 equivalence classes. [2025-03-17 14:45:38,317 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 327 of 327 statements. [2025-03-17 14:45:38,317 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:45:38,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:39,703 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:39,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:39,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20859384] [2025-03-17 14:45:39,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20859384] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:39,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147054315] [2025-03-17 14:45:39,703 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:45:39,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:39,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:39,705 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:39,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 14:45:39,731 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 327 statements into 47 equivalence classes. [2025-03-17 14:45:39,801 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 327 of 327 statements. [2025-03-17 14:45:39,801 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:45:39,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:39,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-17 14:45:39,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:40,052 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:40,052 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:41,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:41,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147054315] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:41,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:41,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2025-03-17 14:45:41,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626546832] [2025-03-17 14:45:41,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:41,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-03-17 14:45:41,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:41,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-03-17 14:45:41,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 14:45:41,989 INFO L87 Difference]: Start difference. First operand 664 states and 711 transitions. Second operand has 96 states, 95 states have (on average 6.88421052631579) internal successors, (654), 95 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:42,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:42,237 INFO L93 Difference]: Finished difference Result 666 states and 713 transitions. [2025-03-17 14:45:42,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-03-17 14:45:42,237 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.88421052631579) internal successors, (654), 95 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327 [2025-03-17 14:45:42,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:42,239 INFO L225 Difference]: With dead ends: 666 [2025-03-17 14:45:42,239 INFO L226 Difference]: Without dead ends: 665 [2025-03-17 14:45:42,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 14:45:42,241 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:42,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 483 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:45:42,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2025-03-17 14:45:42,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2025-03-17 14:45:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 663 states have (on average 1.0030165912518854) internal successors, (665), 664 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 665 transitions. [2025-03-17 14:45:42,253 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 665 transitions. Word has length 327 [2025-03-17 14:45:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:42,253 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 665 transitions. [2025-03-17 14:45:42,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.88421052631579) internal successors, (654), 95 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 665 transitions. [2025-03-17 14:45:42,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2025-03-17 14:45:42,261 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:42,261 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 1, 1] [2025-03-17 14:45:42,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 14:45:42,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-17 14:45:42,462 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:42,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:42,462 INFO L85 PathProgramCache]: Analyzing trace with hash 659661887, now seen corresponding path program 6 times [2025-03-17 14:45:42,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:42,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477559092] [2025-03-17 14:45:42,462 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:45:42,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:42,476 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 662 statements into 95 equivalence classes. [2025-03-17 14:45:42,574 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 662 of 662 statements. [2025-03-17 14:45:42,574 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-17 14:45:42,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:47,481 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:47,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:45:47,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477559092] [2025-03-17 14:45:47,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477559092] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:45:47,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012776131] [2025-03-17 14:45:47,481 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:45:47,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:45:47,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:45:47,483 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:45:47,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 14:45:47,518 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 662 statements into 95 equivalence classes. [2025-03-17 14:45:47,686 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 662 of 662 statements. [2025-03-17 14:45:47,686 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-17 14:45:47,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:45:47,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-03-17 14:45:47,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:45:48,183 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:48,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:45:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:45:55,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012776131] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:45:55,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:45:55,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2025-03-17 14:45:55,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079562219] [2025-03-17 14:45:55,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:45:55,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2025-03-17 14:45:55,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:45:55,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2025-03-17 14:45:55,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-03-17 14:45:55,307 INFO L87 Difference]: Start difference. First operand 665 states and 665 transitions. Second operand has 192 states, 191 states have (on average 6.9319371727748695) internal successors, (1324), 191 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:56,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:45:56,757 INFO L93 Difference]: Finished difference Result 1432 states and 1527 transitions. [2025-03-17 14:45:56,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2025-03-17 14:45:56,758 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.9319371727748695) internal successors, (1324), 191 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 662 [2025-03-17 14:45:56,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:45:56,764 INFO L225 Difference]: With dead ends: 1432 [2025-03-17 14:45:56,764 INFO L226 Difference]: Without dead ends: 1431 [2025-03-17 14:45:56,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1417 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-03-17 14:45:56,767 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 403 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:45:56,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1060 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:45:56,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2025-03-17 14:45:56,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1336. [2025-03-17 14:45:56,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1334 states have (on average 1.0727136431784108) internal successors, (1431), 1335 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:56,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1431 transitions. [2025-03-17 14:45:56,789 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1431 transitions. Word has length 662 [2025-03-17 14:45:56,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:45:56,790 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1431 transitions. [2025-03-17 14:45:56,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.9319371727748695) internal successors, (1324), 191 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:45:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1431 transitions. [2025-03-17 14:45:56,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2025-03-17 14:45:56,808 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:45:56,808 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1] [2025-03-17 14:45:56,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 14:45:57,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-17 14:45:57,009 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:45:57,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:45:57,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1025318006, now seen corresponding path program 6 times [2025-03-17 14:45:57,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:45:57,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30724034] [2025-03-17 14:45:57,009 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:45:57,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:45:57,022 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 663 statements into 95 equivalence classes. [2025-03-17 14:45:57,102 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 663 of 663 statements. [2025-03-17 14:45:57,102 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-17 14:45:57,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:01,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:01,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30724034] [2025-03-17 14:46:01,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30724034] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:46:01,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301707753] [2025-03-17 14:46:01,701 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:46:01,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:01,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:46:01,703 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:46:01,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 14:46:01,739 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 663 statements into 95 equivalence classes. [2025-03-17 14:46:01,891 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 663 of 663 statements. [2025-03-17 14:46:01,891 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-17 14:46:01,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:01,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-03-17 14:46:01,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:46:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:02,413 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:46:09,841 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:09,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301707753] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:46:09,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:46:09,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2025-03-17 14:46:09,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626527697] [2025-03-17 14:46:09,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:46:09,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2025-03-17 14:46:09,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:46:09,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2025-03-17 14:46:09,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-03-17 14:46:09,848 INFO L87 Difference]: Start difference. First operand 1336 states and 1431 transitions. Second operand has 192 states, 191 states have (on average 6.942408376963351) internal successors, (1326), 191 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:46:10,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:46:10,711 INFO L93 Difference]: Finished difference Result 1338 states and 1433 transitions. [2025-03-17 14:46:10,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2025-03-17 14:46:10,712 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.942408376963351) internal successors, (1326), 191 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 663 [2025-03-17 14:46:10,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:46:10,716 INFO L225 Difference]: With dead ends: 1338 [2025-03-17 14:46:10,716 INFO L226 Difference]: Without dead ends: 1337 [2025-03-17 14:46:10,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1419 GetRequests, 1229 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-03-17 14:46:10,718 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:46:10,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 962 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:46:10,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2025-03-17 14:46:10,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2025-03-17 14:46:10,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1335 states have (on average 1.0014981273408239) internal successors, (1337), 1336 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:46:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1337 transitions. [2025-03-17 14:46:10,739 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1337 transitions. Word has length 663 [2025-03-17 14:46:10,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:46:10,740 INFO L471 AbstractCegarLoop]: Abstraction has 1337 states and 1337 transitions. [2025-03-17 14:46:10,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.942408376963351) internal successors, (1326), 191 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:46:10,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1337 transitions. [2025-03-17 14:46:10,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2025-03-17 14:46:10,749 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:46:10,749 INFO L218 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 1, 1] [2025-03-17 14:46:10,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 14:46:10,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 14:46:10,950 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 14:46:10,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:46:10,951 INFO L85 PathProgramCache]: Analyzing trace with hash 500564543, now seen corresponding path program 7 times [2025-03-17 14:46:10,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:46:10,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543056621] [2025-03-17 14:46:10,951 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:46:10,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:46:10,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1334 statements into 1 equivalence classes. [2025-03-17 14:46:11,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1334 of 1334 statements. [2025-03-17 14:46:11,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:11,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:33,768 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:33,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:33,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543056621] [2025-03-17 14:46:33,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543056621] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:46:33,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236375270] [2025-03-17 14:46:33,768 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:46:33,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:33,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:46:33,770 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:46:33,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 14:46:33,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1334 statements into 1 equivalence classes. [2025-03-17 14:46:33,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1334 of 1334 statements. [2025-03-17 14:46:33,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:33,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:34,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 192 conjuncts are in the unsatisfiable core [2025-03-17 14:46:34,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:46:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:34,866 INFO L312 TraceCheckSpWp]: Computing backward predicates...