./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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/nla-digbench-scaling/hard2_valuebound50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63cd3e528fa28694be9f2ecbe948122395c3f48db5408253e949dc50f2a74038 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 11:12:27,601 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 11:12:27,644 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 11:12:27,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 11:12:27,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 11:12:27,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 11:12:27,662 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 11:12:27,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 11:12:27,663 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 11:12:27,663 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 11:12:27,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 11:12:27,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 11:12:27,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 11:12:27,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 11:12:27,664 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 11:12:27,665 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 11:12:27,665 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 11:12:27,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 11:12:27,665 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 11:12:27,665 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 11:12:27,665 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 11:12:27,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 11:12:27,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 11:12:27,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 11:12:27,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:12:27,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 11:12:27,666 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63cd3e528fa28694be9f2ecbe948122395c3f48db5408253e949dc50f2a74038 [2025-03-04 11:12:27,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 11:12:27,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 11:12:27,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 11:12:27,895 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 11:12:27,895 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 11:12:27,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound50.c [2025-03-04 11:12:29,035 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ab8cf6f/9a6e1ee742e441dcb4f56be601084619/FLAGf8a1568cc [2025-03-04 11:12:29,213 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 11:12:29,214 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound50.c [2025-03-04 11:12:29,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ab8cf6f/9a6e1ee742e441dcb4f56be601084619/FLAGf8a1568cc [2025-03-04 11:12:29,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ab8cf6f/9a6e1ee742e441dcb4f56be601084619 [2025-03-04 11:12:29,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 11:12:29,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 11:12:29,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 11:12:29,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 11:12:29,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 11:12:29,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d489d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29, skipping insertion in model container [2025-03-04 11:12:29,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,255 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 11:12:29,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:12:29,381 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 11:12:29,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:12:29,405 INFO L204 MainTranslator]: Completed translation [2025-03-04 11:12:29,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29 WrapperNode [2025-03-04 11:12:29,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 11:12:29,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 11:12:29,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 11:12:29,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 11:12:29,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,432 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2025-03-04 11:12:29,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 11:12:29,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 11:12:29,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 11:12:29,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 11:12:29,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,451 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-03-04 11:12:29,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,453 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 11:12:29,463 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 11:12:29,463 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 11:12:29,463 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 11:12:29,464 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (1/1) ... [2025-03-04 11:12:29,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:12:29,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:29,490 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) [2025-03-04 11:12:29,492 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 [2025-03-04 11:12:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 11:12:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 11:12:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 11:12:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 11:12:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 11:12:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 11:12:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 11:12:29,555 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 11:12:29,556 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 11:12:29,742 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2025-03-04 11:12:29,742 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 11:12:29,755 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 11:12:29,755 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 11:12:29,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:12:29 BoogieIcfgContainer [2025-03-04 11:12:29,756 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 11:12:29,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 11:12:29,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 11:12:29,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 11:12:29,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 11:12:29" (1/3) ... [2025-03-04 11:12:29,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7504bac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:12:29, skipping insertion in model container [2025-03-04 11:12:29,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:12:29" (2/3) ... [2025-03-04 11:12:29,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7504bac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:12:29, skipping insertion in model container [2025-03-04 11:12:29,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:12:29" (3/3) ... [2025-03-04 11:12:29,762 INFO L128 eAbstractionObserver]: Analyzing ICFG hard2_valuebound50.c [2025-03-04 11:12:29,771 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 11:12:29,772 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard2_valuebound50.c that has 2 procedures, 72 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2025-03-04 11:12:29,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 11:12:29,828 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;@77e432b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 11:12:29,829 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2025-03-04 11:12:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 40 states have (on average 1.75) internal successors, (70), 63 states have internal predecessors, (70), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-04 11:12:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-04 11:12:29,836 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:29,836 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 11:12:29,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:29,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:29,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1337638612, now seen corresponding path program 1 times [2025-03-04 11:12:29,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:29,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799027704] [2025-03-04 11:12:29,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:29,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:29,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 11:12:29,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 11:12:29,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:29,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:12:29,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799027704] [2025-03-04 11:12:29,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799027704] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:29,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:29,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:12:29,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317009066] [2025-03-04 11:12:29,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:29,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 11:12:29,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:29,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 11:12:29,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:12:29,955 INFO L87 Difference]: Start difference. First operand has 72 states, 40 states have (on average 1.75) internal successors, (70), 63 states have internal predecessors, (70), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 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) [2025-03-04 11:12:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:29,969 INFO L93 Difference]: Finished difference Result 140 states and 170 transitions. [2025-03-04 11:12:29,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 11:12:29,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 [2025-03-04 11:12:29,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:29,975 INFO L225 Difference]: With dead ends: 140 [2025-03-04 11:12:29,975 INFO L226 Difference]: Without dead ends: 64 [2025-03-04 11:12:29,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:12:29,980 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:29,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:12:29,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-03-04 11:12:30,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2025-03-04 11:12:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 57 states have internal predecessors, (60), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:12:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2025-03-04 11:12:30,008 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 6 [2025-03-04 11:12:30,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:30,008 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2025-03-04 11:12:30,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2025-03-04 11:12:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2025-03-04 11:12:30,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-04 11:12:30,009 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:30,009 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:30,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 11:12:30,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:30,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1606297948, now seen corresponding path program 1 times [2025-03-04 11:12:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723382730] [2025-03-04 11:12:30,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:30,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 11:12:30,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 11:12:30,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:30,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:30,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190243778] [2025-03-04 11:12:30,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:30,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:30,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:30,033 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) [2025-03-04 11:12:30,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 11:12:30,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 11:12:30,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 11:12:30,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:30,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:30,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:12:30,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:12:30,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:12:30,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:30,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723382730] [2025-03-04 11:12:30,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:30,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190243778] [2025-03-04 11:12:30,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190243778] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:30,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:30,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:12:30,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703829944] [2025-03-04 11:12:30,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:30,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:12:30,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:30,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:12:30,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:12:30,130 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:12:30,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:30,218 INFO L93 Difference]: Finished difference Result 133 states and 154 transitions. [2025-03-04 11:12:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:12:30,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2025-03-04 11:12:30,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:30,219 INFO L225 Difference]: With dead ends: 133 [2025-03-04 11:12:30,219 INFO L226 Difference]: Without dead ends: 85 [2025-03-04 11:12:30,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:12:30,220 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 15 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:30,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 93 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:30,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2025-03-04 11:12:30,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2025-03-04 11:12:30,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 48 states have (on average 1.6875) internal successors, (81), 71 states have internal predecessors, (81), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:12:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 101 transitions. [2025-03-04 11:12:30,233 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 101 transitions. Word has length 15 [2025-03-04 11:12:30,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:30,234 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 101 transitions. [2025-03-04 11:12:30,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:12:30,234 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 101 transitions. [2025-03-04 11:12:30,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-04 11:12:30,234 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:30,235 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:30,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 11:12:30,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:30,435 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:30,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1479458051, now seen corresponding path program 1 times [2025-03-04 11:12:30,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:30,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327950531] [2025-03-04 11:12:30,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:30,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:30,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 11:12:30,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 11:12:30,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:30,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:30,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075328806] [2025-03-04 11:12:30,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:30,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:30,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:30,459 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) [2025-03-04 11:12:30,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 11:12:30,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 11:12:30,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 11:12:30,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:30,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:30,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:12:30,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:30,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:12:30,526 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:12:30,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:30,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327950531] [2025-03-04 11:12:30,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:30,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075328806] [2025-03-04 11:12:30,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075328806] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:30,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:30,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:12:30,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475947417] [2025-03-04 11:12:30,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:30,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:12:30,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:30,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:12:30,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:12:30,529 INFO L87 Difference]: Start difference. First operand 83 states and 101 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:12:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:30,593 INFO L93 Difference]: Finished difference Result 117 states and 144 transitions. [2025-03-04 11:12:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:12:30,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2025-03-04 11:12:30,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:30,594 INFO L225 Difference]: With dead ends: 117 [2025-03-04 11:12:30,594 INFO L226 Difference]: Without dead ends: 113 [2025-03-04 11:12:30,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:12:30,594 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 39 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:30,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 87 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:12:30,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-03-04 11:12:30,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 99. [2025-03-04 11:12:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 85 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 11:12:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 127 transitions. [2025-03-04 11:12:30,608 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 127 transitions. Word has length 23 [2025-03-04 11:12:30,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:30,608 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 127 transitions. [2025-03-04 11:12:30,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:12:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 127 transitions. [2025-03-04 11:12:30,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-04 11:12:30,609 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:30,609 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:30,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 11:12:30,809 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,SelfDestructingSolverStorable2 [2025-03-04 11:12:30,810 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:30,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:30,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1479458011, now seen corresponding path program 1 times [2025-03-04 11:12:30,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:30,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819533562] [2025-03-04 11:12:30,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:30,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:30,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 11:12:30,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 11:12:30,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:30,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:30,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:12:30,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819533562] [2025-03-04 11:12:30,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819533562] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:30,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:30,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:12:30,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774693462] [2025-03-04 11:12:30,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:30,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:12:30,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:30,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:12:30,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:12:30,903 INFO L87 Difference]: Start difference. First operand 99 states and 127 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:12:30,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:30,947 INFO L93 Difference]: Finished difference Result 107 states and 132 transitions. [2025-03-04 11:12:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:12:30,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2025-03-04 11:12:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:30,948 INFO L225 Difference]: With dead ends: 107 [2025-03-04 11:12:30,949 INFO L226 Difference]: Without dead ends: 105 [2025-03-04 11:12:30,949 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 [2025-03-04 11:12:30,950 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:30,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 106 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:12:30,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-03-04 11:12:30,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2025-03-04 11:12:30,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.6290322580645162) internal successors, (101), 85 states have internal predecessors, (101), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 11:12:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 125 transitions. [2025-03-04 11:12:30,967 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 125 transitions. Word has length 23 [2025-03-04 11:12:30,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:30,967 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 125 transitions. [2025-03-04 11:12:30,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:12:30,967 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 125 transitions. [2025-03-04 11:12:30,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-04 11:12:30,967 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:30,968 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:30,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 11:12:30,968 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:30,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:30,968 INFO L85 PathProgramCache]: Analyzing trace with hash -125011621, now seen corresponding path program 1 times [2025-03-04 11:12:30,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:30,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044767286] [2025-03-04 11:12:30,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:30,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:30,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 11:12:30,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 11:12:30,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:30,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:12:31,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:31,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044767286] [2025-03-04 11:12:31,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044767286] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:31,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:31,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 11:12:31,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634843706] [2025-03-04 11:12:31,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:31,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:12:31,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:31,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:12:31,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:31,118 INFO L87 Difference]: Start difference. First operand 99 states and 125 transitions. Second operand has 7 states, 5 states have (on average 2.6) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:12:31,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:31,300 INFO L93 Difference]: Finished difference Result 114 states and 138 transitions. [2025-03-04 11:12:31,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:12:31,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2025-03-04 11:12:31,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:31,302 INFO L225 Difference]: With dead ends: 114 [2025-03-04 11:12:31,302 INFO L226 Difference]: Without dead ends: 113 [2025-03-04 11:12:31,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:12:31,302 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 135 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:31,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 121 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:31,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-03-04 11:12:31,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 102. [2025-03-04 11:12:31,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 65 states have (on average 1.6) internal successors, (104), 88 states have internal predecessors, (104), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 11:12:31,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 128 transitions. [2025-03-04 11:12:31,315 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 128 transitions. Word has length 25 [2025-03-04 11:12:31,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:31,316 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 128 transitions. [2025-03-04 11:12:31,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:12:31,316 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 128 transitions. [2025-03-04 11:12:31,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-04 11:12:31,316 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:31,316 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:31,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 11:12:31,316 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:31,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:31,317 INFO L85 PathProgramCache]: Analyzing trace with hash 419607054, now seen corresponding path program 1 times [2025-03-04 11:12:31,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:31,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142485245] [2025-03-04 11:12:31,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:31,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:31,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 11:12:31,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 11:12:31,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:31,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:12:31,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:31,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142485245] [2025-03-04 11:12:31,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142485245] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:31,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:31,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 11:12:31,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502769573] [2025-03-04 11:12:31,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:31,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:12:31,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:31,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:12:31,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:12:31,399 INFO L87 Difference]: Start difference. First operand 102 states and 128 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:12:31,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:31,587 INFO L93 Difference]: Finished difference Result 113 states and 140 transitions. [2025-03-04 11:12:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:12:31,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2025-03-04 11:12:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:31,588 INFO L225 Difference]: With dead ends: 113 [2025-03-04 11:12:31,588 INFO L226 Difference]: Without dead ends: 112 [2025-03-04 11:12:31,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:31,589 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 49 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:31,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 148 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:12:31,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2025-03-04 11:12:31,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2025-03-04 11:12:31,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.542857142857143) internal successors, (108), 93 states have internal predecessors, (108), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 11:12:31,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2025-03-04 11:12:31,610 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 26 [2025-03-04 11:12:31,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:31,610 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2025-03-04 11:12:31,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:12:31,610 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2025-03-04 11:12:31,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-04 11:12:31,611 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:31,611 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:31,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 11:12:31,611 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:31,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:31,612 INFO L85 PathProgramCache]: Analyzing trace with hash 318596564, now seen corresponding path program 1 times [2025-03-04 11:12:31,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:31,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56844718] [2025-03-04 11:12:31,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:31,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:31,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:12:31,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:12:31,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:31,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:31,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425177828] [2025-03-04 11:12:31,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:31,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:31,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:31,627 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) [2025-03-04 11:12:31,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 11:12:31,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:12:31,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:12:31,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:31,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:31,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:12:31,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-04 11:12:31,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:12:31,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:31,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56844718] [2025-03-04 11:12:31,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:31,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425177828] [2025-03-04 11:12:31,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425177828] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:31,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:31,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:12:31,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154735720] [2025-03-04 11:12:31,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:31,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:12:31,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:31,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:12:31,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:12:31,738 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 11:12:31,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:31,808 INFO L93 Difference]: Finished difference Result 118 states and 147 transitions. [2025-03-04 11:12:31,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:12:31,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2025-03-04 11:12:31,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:31,809 INFO L225 Difference]: With dead ends: 118 [2025-03-04 11:12:31,810 INFO L226 Difference]: Without dead ends: 108 [2025-03-04 11:12:31,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:12:31,811 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 45 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:31,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 86 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:31,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2025-03-04 11:12:31,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2025-03-04 11:12:31,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 73 states have (on average 1.452054794520548) internal successors, (106), 92 states have internal predecessors, (106), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 11:12:31,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 134 transitions. [2025-03-04 11:12:31,828 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 134 transitions. Word has length 37 [2025-03-04 11:12:31,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:31,828 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 134 transitions. [2025-03-04 11:12:31,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 11:12:31,829 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 134 transitions. [2025-03-04 11:12:31,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-04 11:12:31,829 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:31,829 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:31,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 11:12:32,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:32,030 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:32,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:32,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1286558921, now seen corresponding path program 1 times [2025-03-04 11:12:32,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:32,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739848231] [2025-03-04 11:12:32,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:32,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:32,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:12:32,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:12:32,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:32,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:32,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779394305] [2025-03-04 11:12:32,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:32,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:32,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:32,042 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) [2025-03-04 11:12:32,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 11:12:32,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:12:32,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:12:32,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:32,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:32,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:12:32,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-04 11:12:32,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:32,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:32,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739848231] [2025-03-04 11:12:32,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:32,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779394305] [2025-03-04 11:12:32,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779394305] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:32,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:32,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-04 11:12:32,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024440439] [2025-03-04 11:12:32,306 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:32,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:12:32,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:32,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:12:32,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:12:32,307 INFO L87 Difference]: Start difference. First operand 108 states and 134 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 11:12:32,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:32,410 INFO L93 Difference]: Finished difference Result 179 states and 234 transitions. [2025-03-04 11:12:32,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:12:32,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2025-03-04 11:12:32,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:32,412 INFO L225 Difference]: With dead ends: 179 [2025-03-04 11:12:32,412 INFO L226 Difference]: Without dead ends: 175 [2025-03-04 11:12:32,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:12:32,413 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 56 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:32,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 96 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:32,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-04 11:12:32,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 163. [2025-03-04 11:12:32,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 119 states have (on average 1.4621848739495797) internal successors, (174), 138 states have internal predecessors, (174), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 11:12:32,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 220 transitions. [2025-03-04 11:12:32,431 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 220 transitions. Word has length 38 [2025-03-04 11:12:32,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:32,431 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 220 transitions. [2025-03-04 11:12:32,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 11:12:32,431 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 220 transitions. [2025-03-04 11:12:32,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-04 11:12:32,434 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:32,434 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:32,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 11:12:32,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:32,635 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:32,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:32,635 INFO L85 PathProgramCache]: Analyzing trace with hash -259674666, now seen corresponding path program 1 times [2025-03-04 11:12:32,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:32,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713726995] [2025-03-04 11:12:32,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:32,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:32,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-04 11:12:32,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-04 11:12:32,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:32,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-04 11:12:32,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:32,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713726995] [2025-03-04 11:12:32,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713726995] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:32,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:32,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 11:12:32,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93310854] [2025-03-04 11:12:32,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:32,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:12:32,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:32,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:12:32,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:32,774 INFO L87 Difference]: Start difference. First operand 163 states and 220 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 11:12:32,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:32,900 INFO L93 Difference]: Finished difference Result 175 states and 232 transitions. [2025-03-04 11:12:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:12:32,901 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2025-03-04 11:12:32,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:32,902 INFO L225 Difference]: With dead ends: 175 [2025-03-04 11:12:32,902 INFO L226 Difference]: Without dead ends: 174 [2025-03-04 11:12:32,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:12:32,902 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 165 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:32,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 136 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:32,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-03-04 11:12:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 164. [2025-03-04 11:12:32,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 139 states have internal predecessors, (175), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 11:12:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 221 transitions. [2025-03-04 11:12:32,914 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 221 transitions. Word has length 42 [2025-03-04 11:12:32,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:32,914 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 221 transitions. [2025-03-04 11:12:32,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 11:12:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 221 transitions. [2025-03-04 11:12:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-04 11:12:32,917 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:32,917 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:32,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 11:12:32,918 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:32,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:32,918 INFO L85 PathProgramCache]: Analyzing trace with hash 540019921, now seen corresponding path program 1 times [2025-03-04 11:12:32,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:32,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033142693] [2025-03-04 11:12:32,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:32,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:32,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 11:12:32,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 11:12:32,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:32,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:32,987 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-04 11:12:32,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:32,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033142693] [2025-03-04 11:12:32,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033142693] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:32,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 11:12:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367445944] [2025-03-04 11:12:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:32,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:12:32,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:32,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:12:32,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:12:32,988 INFO L87 Difference]: Start difference. First operand 164 states and 221 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 11:12:33,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:33,059 INFO L93 Difference]: Finished difference Result 169 states and 225 transitions. [2025-03-04 11:12:33,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:12:33,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2025-03-04 11:12:33,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:33,061 INFO L225 Difference]: With dead ends: 169 [2025-03-04 11:12:33,061 INFO L226 Difference]: Without dead ends: 155 [2025-03-04 11:12:33,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:12:33,062 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:33,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 105 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2025-03-04 11:12:33,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2025-03-04 11:12:33,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 113 states have (on average 1.4778761061946903) internal successors, (167), 132 states have internal predecessors, (167), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-03-04 11:12:33,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 209 transitions. [2025-03-04 11:12:33,074 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 209 transitions. Word has length 43 [2025-03-04 11:12:33,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:33,075 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 209 transitions. [2025-03-04 11:12:33,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 11:12:33,075 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 209 transitions. [2025-03-04 11:12:33,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-04 11:12:33,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:33,075 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:33,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 11:12:33,076 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:33,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:33,076 INFO L85 PathProgramCache]: Analyzing trace with hash 912433749, now seen corresponding path program 1 times [2025-03-04 11:12:33,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:33,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108408542] [2025-03-04 11:12:33,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:33,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:33,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 11:12:33,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 11:12:33,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:33,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 11:12:33,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:33,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108408542] [2025-03-04 11:12:33,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108408542] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:33,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673496763] [2025-03-04 11:12:33,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:33,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:33,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:33,125 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) [2025-03-04 11:12:33,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 11:12:33,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 11:12:33,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 11:12:33,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:33,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:33,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:12:33,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 11:12:33,187 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:12:33,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673496763] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:33,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:33,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-04 11:12:33,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936076931] [2025-03-04 11:12:33,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:33,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:12:33,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:33,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:12:33,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:12:33,189 INFO L87 Difference]: Start difference. First operand 155 states and 209 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 11:12:33,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:33,252 INFO L93 Difference]: Finished difference Result 235 states and 326 transitions. [2025-03-04 11:12:33,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:12:33,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2025-03-04 11:12:33,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:33,255 INFO L225 Difference]: With dead ends: 235 [2025-03-04 11:12:33,255 INFO L226 Difference]: Without dead ends: 233 [2025-03-04 11:12:33,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:12:33,256 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 42 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:33,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 122 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:12:33,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-03-04 11:12:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 212. [2025-03-04 11:12:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.4846625766871167) internal successors, (242), 181 states have internal predecessors, (242), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-04 11:12:33,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 300 transitions. [2025-03-04 11:12:33,271 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 300 transitions. Word has length 45 [2025-03-04 11:12:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:33,272 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 300 transitions. [2025-03-04 11:12:33,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 11:12:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 300 transitions. [2025-03-04 11:12:33,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-04 11:12:33,273 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:33,273 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:33,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 11:12:33,477 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 [2025-03-04 11:12:33,477 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:33,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:33,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1779324831, now seen corresponding path program 1 times [2025-03-04 11:12:33,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:33,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068032531] [2025-03-04 11:12:33,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:33,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:33,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 11:12:33,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 11:12:33,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:33,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 11:12:33,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:33,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068032531] [2025-03-04 11:12:33,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068032531] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:33,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751376190] [2025-03-04 11:12:33,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:33,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:33,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:33,529 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) [2025-03-04 11:12:33,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 11:12:33,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 11:12:33,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 11:12:33,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:33,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:33,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:12:33,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 11:12:33,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 11:12:33,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751376190] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:12:33,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:12:33,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-04 11:12:33,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374018404] [2025-03-04 11:12:33,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:33,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:12:33,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:33,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:12:33,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:33,656 INFO L87 Difference]: Start difference. First operand 212 states and 300 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 11:12:33,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:33,778 INFO L93 Difference]: Finished difference Result 351 states and 490 transitions. [2025-03-04 11:12:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:12:33,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 46 [2025-03-04 11:12:33,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:33,780 INFO L225 Difference]: With dead ends: 351 [2025-03-04 11:12:33,780 INFO L226 Difference]: Without dead ends: 349 [2025-03-04 11:12:33,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:33,780 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 131 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:33,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 196 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:33,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2025-03-04 11:12:33,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 304. [2025-03-04 11:12:33,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 239 states have (on average 1.4853556485355648) internal successors, (355), 257 states have internal predecessors, (355), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 11:12:33,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 445 transitions. [2025-03-04 11:12:33,809 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 445 transitions. Word has length 46 [2025-03-04 11:12:33,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:33,810 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 445 transitions. [2025-03-04 11:12:33,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 11:12:33,810 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 445 transitions. [2025-03-04 11:12:33,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-04 11:12:33,810 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:33,810 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:33,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 11:12:34,010 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 [2025-03-04 11:12:34,011 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:34,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:34,011 INFO L85 PathProgramCache]: Analyzing trace with hash -535378722, now seen corresponding path program 1 times [2025-03-04 11:12:34,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:34,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803202944] [2025-03-04 11:12:34,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:34,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:34,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 11:12:34,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 11:12:34,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:34,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:34,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832512380] [2025-03-04 11:12:34,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:34,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:34,024 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) [2025-03-04 11:12:34,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 11:12:34,051 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 11:12:34,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 11:12:34,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:34,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:34,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:12:34,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-03-04 11:12:34,130 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:12:34,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:34,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803202944] [2025-03-04 11:12:34,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:34,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832512380] [2025-03-04 11:12:34,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832512380] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:34,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:34,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:12:34,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789504527] [2025-03-04 11:12:34,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:34,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:12:34,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:34,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:12:34,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:12:34,131 INFO L87 Difference]: Start difference. First operand 304 states and 445 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:12:34,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:34,195 INFO L93 Difference]: Finished difference Result 323 states and 470 transitions. [2025-03-04 11:12:34,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:12:34,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2025-03-04 11:12:34,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:34,197 INFO L225 Difference]: With dead ends: 323 [2025-03-04 11:12:34,197 INFO L226 Difference]: Without dead ends: 317 [2025-03-04 11:12:34,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:12:34,198 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 100 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:34,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 79 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:12:34,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2025-03-04 11:12:34,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 301. [2025-03-04 11:12:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 236 states have (on average 1.4533898305084745) internal successors, (343), 254 states have internal predecessors, (343), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 11:12:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 433 transitions. [2025-03-04 11:12:34,216 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 433 transitions. Word has length 48 [2025-03-04 11:12:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:34,216 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 433 transitions. [2025-03-04 11:12:34,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:12:34,216 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 433 transitions. [2025-03-04 11:12:34,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-04 11:12:34,217 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:34,217 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 11:12:34,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 11:12:34,417 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 [2025-03-04 11:12:34,417 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:34,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:34,418 INFO L85 PathProgramCache]: Analyzing trace with hash 380481433, now seen corresponding path program 2 times [2025-03-04 11:12:34,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:34,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070721558] [2025-03-04 11:12:34,418 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:12:34,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:34,422 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-03-04 11:12:34,428 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 11:12:34,428 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:12:34,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:34,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [548038158] [2025-03-04 11:12:34,429 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:12:34,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:34,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:34,430 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) [2025-03-04 11:12:34,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 11:12:34,453 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-03-04 11:12:34,466 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 11:12:34,467 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:12:34,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:34,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:12:34,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:34,546 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 11:12:34,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:34,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:34,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070721558] [2025-03-04 11:12:34,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:34,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548038158] [2025-03-04 11:12:34,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548038158] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:34,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:34,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-04 11:12:34,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092141557] [2025-03-04 11:12:34,680 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:34,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:12:34,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:34,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:12:34,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:34,681 INFO L87 Difference]: Start difference. First operand 301 states and 433 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-04 11:12:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:34,797 INFO L93 Difference]: Finished difference Result 390 states and 558 transitions. [2025-03-04 11:12:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:12:34,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2025-03-04 11:12:34,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:34,799 INFO L225 Difference]: With dead ends: 390 [2025-03-04 11:12:34,799 INFO L226 Difference]: Without dead ends: 386 [2025-03-04 11:12:34,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:34,800 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 73 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:34,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 128 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:34,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2025-03-04 11:12:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 301. [2025-03-04 11:12:34,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 236 states have (on average 1.444915254237288) internal successors, (341), 254 states have internal predecessors, (341), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 11:12:34,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 431 transitions. [2025-03-04 11:12:34,821 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 431 transitions. Word has length 60 [2025-03-04 11:12:34,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:34,821 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 431 transitions. [2025-03-04 11:12:34,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-04 11:12:34,821 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 431 transitions. [2025-03-04 11:12:34,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-04 11:12:34,822 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:34,822 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:34,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 11:12:35,022 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 [2025-03-04 11:12:35,023 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:35,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:35,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1442874976, now seen corresponding path program 1 times [2025-03-04 11:12:35,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:35,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16983700] [2025-03-04 11:12:35,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:35,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:35,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-04 11:12:35,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-04 11:12:35,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:35,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 11:12:35,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:35,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16983700] [2025-03-04 11:12:35,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16983700] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:35,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:35,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:12:35,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36606049] [2025-03-04 11:12:35,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:35,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:12:35,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:35,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:12:35,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:12:35,080 INFO L87 Difference]: Start difference. First operand 301 states and 431 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:35,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:35,131 INFO L93 Difference]: Finished difference Result 301 states and 431 transitions. [2025-03-04 11:12:35,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:12:35,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2025-03-04 11:12:35,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:35,133 INFO L225 Difference]: With dead ends: 301 [2025-03-04 11:12:35,133 INFO L226 Difference]: Without dead ends: 300 [2025-03-04 11:12:35,133 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 [2025-03-04 11:12:35,135 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:35,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 95 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:12:35,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2025-03-04 11:12:35,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2025-03-04 11:12:35,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 236 states have (on average 1.4194915254237288) internal successors, (335), 253 states have internal predecessors, (335), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 11:12:35,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 425 transitions. [2025-03-04 11:12:35,153 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 425 transitions. Word has length 67 [2025-03-04 11:12:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:35,154 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 425 transitions. [2025-03-04 11:12:35,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 425 transitions. [2025-03-04 11:12:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-04 11:12:35,154 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:35,154 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:35,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 11:12:35,155 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:35,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:35,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1779451283, now seen corresponding path program 1 times [2025-03-04 11:12:35,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:35,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355391579] [2025-03-04 11:12:35,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:35,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:35,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-04 11:12:35,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-04 11:12:35,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:35,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:35,285 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 11:12:35,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:35,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355391579] [2025-03-04 11:12:35,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355391579] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:35,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553320662] [2025-03-04 11:12:35,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:35,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:35,288 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) [2025-03-04 11:12:35,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 11:12:35,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-04 11:12:35,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-04 11:12:35,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:35,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:35,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:12:35,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 11:12:35,454 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:12:35,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553320662] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:35,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:35,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-04 11:12:35,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885478941] [2025-03-04 11:12:35,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:35,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:12:35,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:35,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:12:35,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:12:35,455 INFO L87 Difference]: Start difference. First operand 300 states and 425 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-04 11:12:35,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:35,569 INFO L93 Difference]: Finished difference Result 318 states and 440 transitions. [2025-03-04 11:12:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:12:35,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2025-03-04 11:12:35,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:35,571 INFO L225 Difference]: With dead ends: 318 [2025-03-04 11:12:35,571 INFO L226 Difference]: Without dead ends: 317 [2025-03-04 11:12:35,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:12:35,572 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 119 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:35,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 122 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:35,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2025-03-04 11:12:35,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 300. [2025-03-04 11:12:35,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 236 states have (on average 1.4067796610169492) internal successors, (332), 253 states have internal predecessors, (332), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 11:12:35,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 422 transitions. [2025-03-04 11:12:35,601 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 422 transitions. Word has length 68 [2025-03-04 11:12:35,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:35,602 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 422 transitions. [2025-03-04 11:12:35,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-04 11:12:35,602 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 422 transitions. [2025-03-04 11:12:35,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-04 11:12:35,602 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:35,603 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:35,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-04 11:12:35,803 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,SelfDestructingSolverStorable15 [2025-03-04 11:12:35,803 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:35,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:35,804 INFO L85 PathProgramCache]: Analyzing trace with hash -671585090, now seen corresponding path program 1 times [2025-03-04 11:12:35,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:35,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890238270] [2025-03-04 11:12:35,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:35,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:35,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-04 11:12:35,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-04 11:12:35,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:35,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:35,932 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 11:12:35,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:35,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890238270] [2025-03-04 11:12:35,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890238270] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:35,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960868906] [2025-03-04 11:12:35,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:35,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:35,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:35,935 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) [2025-03-04 11:12:35,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 11:12:35,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-04 11:12:35,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-04 11:12:35,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:35,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:35,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:12:35,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 11:12:36,090 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:12:36,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960868906] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-04 11:12:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252714482] [2025-03-04 11:12:36,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:36,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:12:36,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:36,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:12:36,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:12:36,091 INFO L87 Difference]: Start difference. First operand 300 states and 422 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:36,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:36,205 INFO L93 Difference]: Finished difference Result 319 states and 443 transitions. [2025-03-04 11:12:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:12:36,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2025-03-04 11:12:36,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:36,207 INFO L225 Difference]: With dead ends: 319 [2025-03-04 11:12:36,207 INFO L226 Difference]: Without dead ends: 318 [2025-03-04 11:12:36,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:12:36,207 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 59 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:36,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 91 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:36,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2025-03-04 11:12:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 309. [2025-03-04 11:12:36,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 245 states have (on average 1.3918367346938776) internal successors, (341), 262 states have internal predecessors, (341), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 11:12:36,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 431 transitions. [2025-03-04 11:12:36,225 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 431 transitions. Word has length 69 [2025-03-04 11:12:36,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:36,225 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 431 transitions. [2025-03-04 11:12:36,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:36,225 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 431 transitions. [2025-03-04 11:12:36,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-04 11:12:36,226 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:36,226 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:36,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 11:12:36,426 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,SelfDestructingSolverStorable16 [2025-03-04 11:12:36,426 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:36,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:36,427 INFO L85 PathProgramCache]: Analyzing trace with hash 655698673, now seen corresponding path program 1 times [2025-03-04 11:12:36,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:36,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397307457] [2025-03-04 11:12:36,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:36,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:36,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-04 11:12:36,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-04 11:12:36,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:36,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:36,514 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 11:12:36,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:36,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397307457] [2025-03-04 11:12:36,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397307457] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:36,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14053747] [2025-03-04 11:12:36,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:36,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:36,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:36,516 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) [2025-03-04 11:12:36,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 11:12:36,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-04 11:12:36,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-04 11:12:36,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:36,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:36,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:12:36,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 11:12:36,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:12:36,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14053747] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:36,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:36,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-04 11:12:36,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227354554] [2025-03-04 11:12:36,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:36,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:12:36,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:36,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:12:36,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:36,647 INFO L87 Difference]: Start difference. First operand 309 states and 431 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:36,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:36,732 INFO L93 Difference]: Finished difference Result 318 states and 437 transitions. [2025-03-04 11:12:36,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:12:36,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2025-03-04 11:12:36,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:36,734 INFO L225 Difference]: With dead ends: 318 [2025-03-04 11:12:36,734 INFO L226 Difference]: Without dead ends: 316 [2025-03-04 11:12:36,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:36,735 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 30 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:36,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 75 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:36,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2025-03-04 11:12:36,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 312. [2025-03-04 11:12:36,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 248 states have (on average 1.3588709677419355) internal successors, (337), 265 states have internal predecessors, (337), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 11:12:36,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 427 transitions. [2025-03-04 11:12:36,753 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 427 transitions. Word has length 70 [2025-03-04 11:12:36,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:36,753 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 427 transitions. [2025-03-04 11:12:36,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:36,754 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 427 transitions. [2025-03-04 11:12:36,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-04 11:12:36,754 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:36,754 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:36,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 11:12:36,954 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,SelfDestructingSolverStorable17 [2025-03-04 11:12:36,955 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:36,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:36,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1148177602, now seen corresponding path program 1 times [2025-03-04 11:12:36,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:36,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841403093] [2025-03-04 11:12:36,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:36,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:36,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 11:12:36,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 11:12:36,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:36,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:36,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157974889] [2025-03-04 11:12:36,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:36,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:36,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:36,975 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) [2025-03-04 11:12:36,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 11:12:36,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 11:12:37,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 11:12:37,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:37,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:37,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:12:37,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:37,216 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 11:12:37,216 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:37,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:37,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841403093] [2025-03-04 11:12:37,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:37,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157974889] [2025-03-04 11:12:37,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157974889] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:37,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:37,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:12:37,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537630523] [2025-03-04 11:12:37,632 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:37,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:12:37,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:37,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:12:37,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:12:37,633 INFO L87 Difference]: Start difference. First operand 312 states and 427 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:37,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:37,738 INFO L93 Difference]: Finished difference Result 390 states and 547 transitions. [2025-03-04 11:12:37,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:12:37,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 71 [2025-03-04 11:12:37,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:37,739 INFO L225 Difference]: With dead ends: 390 [2025-03-04 11:12:37,739 INFO L226 Difference]: Without dead ends: 389 [2025-03-04 11:12:37,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:12:37,740 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 74 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:37,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 86 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:37,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2025-03-04 11:12:37,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 366. [2025-03-04 11:12:37,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 296 states have (on average 1.3783783783783783) internal successors, (408), 313 states have internal predecessors, (408), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-04 11:12:37,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 510 transitions. [2025-03-04 11:12:37,770 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 510 transitions. Word has length 71 [2025-03-04 11:12:37,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:37,771 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 510 transitions. [2025-03-04 11:12:37,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:37,771 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 510 transitions. [2025-03-04 11:12:37,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-04 11:12:37,771 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:37,771 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:37,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 11:12:37,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:37,972 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:37,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:37,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1233767281, now seen corresponding path program 1 times [2025-03-04 11:12:37,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:37,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821392235] [2025-03-04 11:12:37,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:37,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:37,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-04 11:12:37,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 11:12:37,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:37,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:37,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152412316] [2025-03-04 11:12:37,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:37,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:37,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:38,001 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) [2025-03-04 11:12:38,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 11:12:38,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-04 11:12:38,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 11:12:38,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:38,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:38,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:12:38,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 11:12:38,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:38,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:38,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821392235] [2025-03-04 11:12:38,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:38,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152412316] [2025-03-04 11:12:38,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152412316] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:38,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:38,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-04 11:12:38,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916048354] [2025-03-04 11:12:38,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:38,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:12:38,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:38,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:12:38,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:12:38,615 INFO L87 Difference]: Start difference. First operand 366 states and 510 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:38,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:38,677 INFO L93 Difference]: Finished difference Result 370 states and 510 transitions. [2025-03-04 11:12:38,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:12:38,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 72 [2025-03-04 11:12:38,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:38,679 INFO L225 Difference]: With dead ends: 370 [2025-03-04 11:12:38,679 INFO L226 Difference]: Without dead ends: 367 [2025-03-04 11:12:38,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:12:38,680 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 51 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:38,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 67 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:12:38,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2025-03-04 11:12:38,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 364. [2025-03-04 11:12:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 296 states have (on average 1.3006756756756757) internal successors, (385), 311 states have internal predecessors, (385), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-04 11:12:38,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 487 transitions. [2025-03-04 11:12:38,698 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 487 transitions. Word has length 72 [2025-03-04 11:12:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:38,699 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 487 transitions. [2025-03-04 11:12:38,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:38,699 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 487 transitions. [2025-03-04 11:12:38,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-04 11:12:38,699 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:38,699 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:38,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-04 11:12:38,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2025-03-04 11:12:38,900 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:38,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:38,901 INFO L85 PathProgramCache]: Analyzing trace with hash 407919964, now seen corresponding path program 1 times [2025-03-04 11:12:38,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:38,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566161013] [2025-03-04 11:12:38,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:38,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:38,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-04 11:12:38,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-04 11:12:38,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:38,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 11:12:38,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:38,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566161013] [2025-03-04 11:12:38,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566161013] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:38,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:38,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 11:12:38,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913898615] [2025-03-04 11:12:38,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:38,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:12:38,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:38,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:12:38,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:12:38,945 INFO L87 Difference]: Start difference. First operand 364 states and 487 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:39,088 INFO L93 Difference]: Finished difference Result 366 states and 487 transitions. [2025-03-04 11:12:39,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:12:39,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 73 [2025-03-04 11:12:39,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:39,090 INFO L225 Difference]: With dead ends: 366 [2025-03-04 11:12:39,090 INFO L226 Difference]: Without dead ends: 365 [2025-03-04 11:12:39,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:12:39,091 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 48 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:39,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 135 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:39,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2025-03-04 11:12:39,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 363. [2025-03-04 11:12:39,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 296 states have (on average 1.2702702702702702) internal successors, (376), 310 states have internal predecessors, (376), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-04 11:12:39,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 478 transitions. [2025-03-04 11:12:39,124 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 478 transitions. Word has length 73 [2025-03-04 11:12:39,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:39,124 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 478 transitions. [2025-03-04 11:12:39,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:12:39,124 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 478 transitions. [2025-03-04 11:12:39,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-04 11:12:39,124 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:39,125 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:39,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-04 11:12:39,125 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:39,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:39,125 INFO L85 PathProgramCache]: Analyzing trace with hash -239382995, now seen corresponding path program 1 times [2025-03-04 11:12:39,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:39,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664229066] [2025-03-04 11:12:39,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:39,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:39,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:12:39,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:12:39,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:39,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 11:12:39,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:39,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664229066] [2025-03-04 11:12:39,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664229066] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:39,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064916922] [2025-03-04 11:12:39,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:39,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:39,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:39,250 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:12:39,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 11:12:39,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:12:39,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:12:39,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:39,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:39,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 11:12:39,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 11:12:39,559 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:40,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064916922] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:40,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:12:40,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2025-03-04 11:12:40,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110452053] [2025-03-04 11:12:40,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:40,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:12:40,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:40,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:12:40,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2025-03-04 11:12:40,011 INFO L87 Difference]: Start difference. First operand 363 states and 478 transitions. Second operand has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-04 11:12:40,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:40,888 INFO L93 Difference]: Finished difference Result 645 states and 870 transitions. [2025-03-04 11:12:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-04 11:12:40,889 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 74 [2025-03-04 11:12:40,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:40,892 INFO L225 Difference]: With dead ends: 645 [2025-03-04 11:12:40,892 INFO L226 Difference]: Without dead ends: 640 [2025-03-04 11:12:40,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2025-03-04 11:12:40,896 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 413 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:40,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 260 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 11:12:40,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2025-03-04 11:12:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 490. [2025-03-04 11:12:40,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 407 states have (on average 1.2604422604422605) internal successors, (513), 421 states have internal predecessors, (513), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-03-04 11:12:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 647 transitions. [2025-03-04 11:12:40,932 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 647 transitions. Word has length 74 [2025-03-04 11:12:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:40,933 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 647 transitions. [2025-03-04 11:12:40,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 16 states have internal predecessors, (68), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-04 11:12:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 647 transitions. [2025-03-04 11:12:40,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-04 11:12:40,933 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:40,934 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:40,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-04 11:12:41,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:41,138 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:41,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:41,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1236330583, now seen corresponding path program 1 times [2025-03-04 11:12:41,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:41,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34622555] [2025-03-04 11:12:41,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:41,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:41,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 11:12:41,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 11:12:41,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:41,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:41,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048391372] [2025-03-04 11:12:41,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:41,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:41,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:41,158 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:12:41,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 11:12:41,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 11:12:41,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 11:12:41,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:41,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:41,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-04 11:12:41,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-03-04 11:12:41,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:41,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:41,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34622555] [2025-03-04 11:12:41,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:41,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048391372] [2025-03-04 11:12:41,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048391372] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:41,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:41,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 11:12:41,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839308533] [2025-03-04 11:12:41,762 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:41,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:12:41,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:41,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:12:41,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:12:41,763 INFO L87 Difference]: Start difference. First operand 490 states and 647 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-04 11:12:42,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:42,047 INFO L93 Difference]: Finished difference Result 510 states and 659 transitions. [2025-03-04 11:12:42,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:12:42,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2025-03-04 11:12:42,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:42,050 INFO L225 Difference]: With dead ends: 510 [2025-03-04 11:12:42,050 INFO L226 Difference]: Without dead ends: 395 [2025-03-04 11:12:42,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:12:42,050 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 12 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:42,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 150 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:12:42,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2025-03-04 11:12:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 393. [2025-03-04 11:12:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 322 states have (on average 1.2484472049689441) internal successors, (402), 336 states have internal predecessors, (402), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-03-04 11:12:42,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 512 transitions. [2025-03-04 11:12:42,074 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 512 transitions. Word has length 88 [2025-03-04 11:12:42,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:42,074 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 512 transitions. [2025-03-04 11:12:42,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-04 11:12:42,074 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 512 transitions. [2025-03-04 11:12:42,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-04 11:12:42,076 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:42,076 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:42,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-04 11:12:42,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:42,277 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:42,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:42,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1592251403, now seen corresponding path program 1 times [2025-03-04 11:12:42,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:42,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587505483] [2025-03-04 11:12:42,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:42,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:42,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-04 11:12:42,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-04 11:12:42,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:42,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:42,325 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-04 11:12:42,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:42,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587505483] [2025-03-04 11:12:42,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587505483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:12:42,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:12:42,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 11:12:42,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421917718] [2025-03-04 11:12:42,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:12:42,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:12:42,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:42,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:12:42,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:12:42,326 INFO L87 Difference]: Start difference. First operand 393 states and 512 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 11:12:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:42,427 INFO L93 Difference]: Finished difference Result 395 states and 512 transitions. [2025-03-04 11:12:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:12:42,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2025-03-04 11:12:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:42,429 INFO L225 Difference]: With dead ends: 395 [2025-03-04 11:12:42,429 INFO L226 Difference]: Without dead ends: 364 [2025-03-04 11:12:42,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:12:42,430 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 22 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:42,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 175 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:42,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2025-03-04 11:12:42,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 362. [2025-03-04 11:12:42,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 296 states have (on average 1.2635135135135136) internal successors, (374), 309 states have internal predecessors, (374), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-04 11:12:42,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 476 transitions. [2025-03-04 11:12:42,460 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 476 transitions. Word has length 90 [2025-03-04 11:12:42,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:42,460 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 476 transitions. [2025-03-04 11:12:42,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 11:12:42,460 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 476 transitions. [2025-03-04 11:12:42,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-04 11:12:42,461 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:42,461 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1] [2025-03-04 11:12:42,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-04 11:12:42,462 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:42,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:42,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1901115329, now seen corresponding path program 1 times [2025-03-04 11:12:42,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:42,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658987569] [2025-03-04 11:12:42,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:42,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:42,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-04 11:12:42,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-04 11:12:42,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:42,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-04 11:12:42,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:42,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658987569] [2025-03-04 11:12:42,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658987569] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:42,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359910393] [2025-03-04 11:12:42,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:42,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:42,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:42,523 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:12:42,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 11:12:42,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-04 11:12:42,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-04 11:12:42,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:42,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:42,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:12:42,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-04 11:12:42,603 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-04 11:12:42,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359910393] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:12:42,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:12:42,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 11:12:42,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826121301] [2025-03-04 11:12:42,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:42,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:12:42,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:42,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:12:42,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:12:42,687 INFO L87 Difference]: Start difference. First operand 362 states and 476 transitions. Second operand has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-03-04 11:12:42,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:42,894 INFO L93 Difference]: Finished difference Result 741 states and 972 transitions. [2025-03-04 11:12:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:12:42,894 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 92 [2025-03-04 11:12:42,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:42,901 INFO L225 Difference]: With dead ends: 741 [2025-03-04 11:12:42,902 INFO L226 Difference]: Without dead ends: 739 [2025-03-04 11:12:42,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:12:42,902 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 262 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:42,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 310 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:12:42,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2025-03-04 11:12:42,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 500. [2025-03-04 11:12:42,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2682926829268293) internal successors, (520), 423 states have internal predecessors, (520), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-04 11:12:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 670 transitions. [2025-03-04 11:12:42,931 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 670 transitions. Word has length 92 [2025-03-04 11:12:42,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:42,931 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 670 transitions. [2025-03-04 11:12:42,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-03-04 11:12:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 670 transitions. [2025-03-04 11:12:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-04 11:12:42,933 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:42,933 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:42,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 11:12:43,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-03-04 11:12:43,133 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:43,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:43,134 INFO L85 PathProgramCache]: Analyzing trace with hash 225476861, now seen corresponding path program 2 times [2025-03-04 11:12:43,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:43,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486310882] [2025-03-04 11:12:43,134 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:12:43,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:43,138 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 96 statements into 2 equivalence classes. [2025-03-04 11:12:43,145 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 96 of 96 statements. [2025-03-04 11:12:43,146 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:12:43,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:43,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808132833] [2025-03-04 11:12:43,147 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:12:43,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:43,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:43,149 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:12:43,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 11:12:43,186 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 96 statements into 2 equivalence classes. [2025-03-04 11:12:43,203 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 96 of 96 statements. [2025-03-04 11:12:43,204 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:12:43,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:43,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-04 11:12:43,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-04 11:12:43,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:44,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:44,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486310882] [2025-03-04 11:12:44,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:12:44,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808132833] [2025-03-04 11:12:44,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808132833] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:44,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:12:44,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 11:12:44,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197437027] [2025-03-04 11:12:44,271 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:44,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:12:44,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:44,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:12:44,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:12:44,272 INFO L87 Difference]: Start difference. First operand 500 states and 670 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 11:12:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:44,702 INFO L93 Difference]: Finished difference Result 523 states and 699 transitions. [2025-03-04 11:12:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 11:12:44,703 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 96 [2025-03-04 11:12:44,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:44,705 INFO L225 Difference]: With dead ends: 523 [2025-03-04 11:12:44,705 INFO L226 Difference]: Without dead ends: 522 [2025-03-04 11:12:44,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:12:44,706 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 28 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:44,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 245 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:12:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2025-03-04 11:12:44,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 500. [2025-03-04 11:12:44,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2658536585365854) internal successors, (519), 423 states have internal predecessors, (519), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-04 11:12:44,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 669 transitions. [2025-03-04 11:12:44,735 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 669 transitions. Word has length 96 [2025-03-04 11:12:44,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:44,736 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 669 transitions. [2025-03-04 11:12:44,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 11:12:44,736 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 669 transitions. [2025-03-04 11:12:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-04 11:12:44,737 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:44,737 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:44,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-04 11:12:44,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-04 11:12:44,938 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:44,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash 564981543, now seen corresponding path program 2 times [2025-03-04 11:12:44,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:44,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529487069] [2025-03-04 11:12:44,939 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:12:44,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:44,951 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 11:12:44,957 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 11:12:44,957 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:12:44,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:12:45,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:45,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529487069] [2025-03-04 11:12:45,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529487069] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:45,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678604180] [2025-03-04 11:12:45,054 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:12:45,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:45,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:45,055 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:12:45,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 11:12:45,080 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 11:12:45,099 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 11:12:45,099 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:12:45,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:45,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:12:45,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:12:45,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:12:45,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678604180] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:12:45,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:12:45,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2025-03-04 11:12:45,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531268688] [2025-03-04 11:12:45,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:45,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 11:12:45,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:45,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 11:12:45,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:12:45,266 INFO L87 Difference]: Start difference. First operand 500 states and 669 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2025-03-04 11:12:45,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:45,362 INFO L93 Difference]: Finished difference Result 509 states and 675 transitions. [2025-03-04 11:12:45,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:12:45,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 110 [2025-03-04 11:12:45,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:45,364 INFO L225 Difference]: With dead ends: 509 [2025-03-04 11:12:45,364 INFO L226 Difference]: Without dead ends: 502 [2025-03-04 11:12:45,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:12:45,365 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 41 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:45,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 237 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:45,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2025-03-04 11:12:45,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 500. [2025-03-04 11:12:45,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2560975609756098) internal successors, (515), 423 states have internal predecessors, (515), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-04 11:12:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 665 transitions. [2025-03-04 11:12:45,399 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 665 transitions. Word has length 110 [2025-03-04 11:12:45,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:45,400 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 665 transitions. [2025-03-04 11:12:45,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2025-03-04 11:12:45,401 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 665 transitions. [2025-03-04 11:12:45,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-04 11:12:45,402 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:45,402 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2025-03-04 11:12:45,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 11:12:45,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-04 11:12:45,603 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:45,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1588417745, now seen corresponding path program 2 times [2025-03-04 11:12:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:45,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147001539] [2025-03-04 11:12:45,604 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:12:45,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:45,607 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 112 statements into 2 equivalence classes. [2025-03-04 11:12:45,609 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 112 statements. [2025-03-04 11:12:45,609 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 11:12:45,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2025-03-04 11:12:45,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:45,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147001539] [2025-03-04 11:12:45,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147001539] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:45,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439765124] [2025-03-04 11:12:45,648 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:12:45,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:45,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:45,650 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:12:45,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 11:12:45,672 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 112 statements into 2 equivalence classes. [2025-03-04 11:12:45,678 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 112 statements. [2025-03-04 11:12:45,678 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 11:12:45,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:45,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:12:45,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2025-03-04 11:12:45,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:45,840 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2025-03-04 11:12:45,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439765124] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:12:45,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:12:45,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 11:12:45,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703820966] [2025-03-04 11:12:45,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:45,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:12:45,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:45,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:12:45,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:12:45,841 INFO L87 Difference]: Start difference. First operand 500 states and 665 transitions. Second operand has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 11:12:46,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:46,004 INFO L93 Difference]: Finished difference Result 598 states and 815 transitions. [2025-03-04 11:12:46,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:12:46,005 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 112 [2025-03-04 11:12:46,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:46,007 INFO L225 Difference]: With dead ends: 598 [2025-03-04 11:12:46,007 INFO L226 Difference]: Without dead ends: 596 [2025-03-04 11:12:46,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:12:46,008 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 136 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:46,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 242 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:12:46,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-03-04 11:12:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 402. [2025-03-04 11:12:46,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 326 states have (on average 1.2177914110429449) internal successors, (397), 337 states have internal predecessors, (397), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-03-04 11:12:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 523 transitions. [2025-03-04 11:12:46,034 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 523 transitions. Word has length 112 [2025-03-04 11:12:46,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:46,034 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 523 transitions. [2025-03-04 11:12:46,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 11:12:46,034 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 523 transitions. [2025-03-04 11:12:46,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-04 11:12:46,035 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:46,035 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:46,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-04 11:12:46,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:46,236 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:46,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:46,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2033206665, now seen corresponding path program 1 times [2025-03-04 11:12:46,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:46,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995861416] [2025-03-04 11:12:46,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:46,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:46,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-04 11:12:46,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-04 11:12:46,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:46,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:46,363 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:12:46,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:46,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995861416] [2025-03-04 11:12:46,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995861416] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:46,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724029065] [2025-03-04 11:12:46,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:46,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:46,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:46,366 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:12:46,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 11:12:46,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-04 11:12:46,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-04 11:12:46,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:46,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:46,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:12:46,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:46,647 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:12:46,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:12:46,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724029065] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:12:46,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:12:46,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2025-03-04 11:12:46,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998362430] [2025-03-04 11:12:46,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:46,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-04 11:12:46,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:46,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-04 11:12:46,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:12:46,940 INFO L87 Difference]: Start difference. First operand 402 states and 523 transitions. Second operand has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-04 11:12:47,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:47,430 INFO L93 Difference]: Finished difference Result 542 states and 705 transitions. [2025-03-04 11:12:47,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-04 11:12:47,431 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 112 [2025-03-04 11:12:47,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:47,432 INFO L225 Difference]: With dead ends: 542 [2025-03-04 11:12:47,432 INFO L226 Difference]: Without dead ends: 457 [2025-03-04 11:12:47,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=430, Invalid=1210, Unknown=0, NotChecked=0, Total=1640 [2025-03-04 11:12:47,433 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 748 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:47,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 401 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:12:47,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2025-03-04 11:12:47,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 396. [2025-03-04 11:12:47,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 318 states have (on average 1.2452830188679245) internal successors, (396), 329 states have internal predecessors, (396), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2025-03-04 11:12:47,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 526 transitions. [2025-03-04 11:12:47,457 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 526 transitions. Word has length 112 [2025-03-04 11:12:47,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:47,457 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 526 transitions. [2025-03-04 11:12:47,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-04 11:12:47,457 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 526 transitions. [2025-03-04 11:12:47,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-04 11:12:47,458 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:47,458 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:47,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-04 11:12:47,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-04 11:12:47,659 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:47,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:47,659 INFO L85 PathProgramCache]: Analyzing trace with hash 729663999, now seen corresponding path program 1 times [2025-03-04 11:12:47,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:47,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568246730] [2025-03-04 11:12:47,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:47,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:47,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-04 11:12:47,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-04 11:12:47,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:47,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:47,808 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2025-03-04 11:12:47,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:12:47,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568246730] [2025-03-04 11:12:47,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568246730] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:12:47,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292805704] [2025-03-04 11:12:47,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:12:47,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:47,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:47,811 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:12:47,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 11:12:47,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-04 11:12:47,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-04 11:12:47,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:12:47,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:47,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:12:47,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:48,011 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:12:48,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:12:49,910 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:12:49,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292805704] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:12:49,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:12:49,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2025-03-04 11:12:49,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212667317] [2025-03-04 11:12:49,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:12:49,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-04 11:12:49,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:12:49,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-04 11:12:49,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:12:49,913 INFO L87 Difference]: Start difference. First operand 396 states and 526 transitions. Second operand has 21 states, 20 states have (on average 7.4) internal successors, (148), 21 states have internal predecessors, (148), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-03-04 11:12:50,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:12:50,207 INFO L93 Difference]: Finished difference Result 523 states and 707 transitions. [2025-03-04 11:12:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 11:12:50,207 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 7.4) internal successors, (148), 21 states have internal predecessors, (148), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 117 [2025-03-04 11:12:50,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:12:50,209 INFO L225 Difference]: With dead ends: 523 [2025-03-04 11:12:50,209 INFO L226 Difference]: Without dead ends: 522 [2025-03-04 11:12:50,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2025-03-04 11:12:50,210 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 249 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:12:50,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 299 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:12:50,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2025-03-04 11:12:50,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 395. [2025-03-04 11:12:50,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 318 states have (on average 1.2358490566037736) internal successors, (393), 328 states have internal predecessors, (393), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2025-03-04 11:12:50,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 523 transitions. [2025-03-04 11:12:50,235 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 523 transitions. Word has length 117 [2025-03-04 11:12:50,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:12:50,236 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 523 transitions. [2025-03-04 11:12:50,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 7.4) internal successors, (148), 21 states have internal predecessors, (148), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-03-04 11:12:50,236 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 523 transitions. [2025-03-04 11:12:50,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-04 11:12:50,237 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:12:50,237 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:12:50,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-04 11:12:50,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:50,437 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:12:50,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:12:50,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1000388557, now seen corresponding path program 3 times [2025-03-04 11:12:50,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:12:50,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871984263] [2025-03-04 11:12:50,438 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:12:50,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:12:50,448 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 118 statements into 9 equivalence classes. [2025-03-04 11:12:50,463 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 118 of 118 statements. [2025-03-04 11:12:50,463 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-04 11:12:50,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:12:50,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168755784] [2025-03-04 11:12:50,463 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:12:50,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:12:50,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:12:50,465 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:12:50,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 11:12:50,490 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 118 statements into 9 equivalence classes. [2025-03-04 11:12:50,502 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 40 of 118 statements. [2025-03-04 11:12:50,502 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 11:12:50,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:12:50,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-04 11:12:50,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:12:50,848 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 39 proven. 4 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2025-03-04 11:12:50,848 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:02,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:02,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871984263] [2025-03-04 11:13:02,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:13:02,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168755784] [2025-03-04 11:13:02,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168755784] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:02,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:13:02,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 11:13:02,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696854675] [2025-03-04 11:13:02,531 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:02,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:13:02,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:02,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:13:02,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=243, Unknown=2, NotChecked=0, Total=306 [2025-03-04 11:13:02,531 INFO L87 Difference]: Start difference. First operand 395 states and 523 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:13:03,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:03,048 INFO L93 Difference]: Finished difference Result 410 states and 537 transitions. [2025-03-04 11:13:03,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 11:13:03,049 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 118 [2025-03-04 11:13:03,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:03,050 INFO L225 Difference]: With dead ends: 410 [2025-03-04 11:13:03,050 INFO L226 Difference]: Without dead ends: 409 [2025-03-04 11:13:03,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=160, Invalid=540, Unknown=2, NotChecked=0, Total=702 [2025-03-04 11:13:03,051 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 139 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:03,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 99 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:13:03,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2025-03-04 11:13:03,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 395. [2025-03-04 11:13:03,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 318 states have (on average 1.2232704402515724) internal successors, (389), 328 states have internal predecessors, (389), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2025-03-04 11:13:03,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 519 transitions. [2025-03-04 11:13:03,075 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 519 transitions. Word has length 118 [2025-03-04 11:13:03,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:03,076 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 519 transitions. [2025-03-04 11:13:03,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:13:03,076 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 519 transitions. [2025-03-04 11:13:03,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-04 11:13:03,076 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:03,076 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:03,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-03-04 11:13:03,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:03,277 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:03,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:03,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1144747472, now seen corresponding path program 1 times [2025-03-04 11:13:03,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:03,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752800854] [2025-03-04 11:13:03,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:03,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:03,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-04 11:13:03,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-04 11:13:03,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:03,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:13:03,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:03,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752800854] [2025-03-04 11:13:03,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752800854] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:03,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669026561] [2025-03-04 11:13:03,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:03,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:03,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:03,480 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:03,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 11:13:03,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-04 11:13:03,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-04 11:13:03,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:03,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:03,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 11:13:03,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:13:03,723 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:04,587 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:13:04,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669026561] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:13:04,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:13:04,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2025-03-04 11:13:04,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815150502] [2025-03-04 11:13:04,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:04,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-04 11:13:04,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:04,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-04 11:13:04,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:13:04,589 INFO L87 Difference]: Start difference. First operand 395 states and 519 transitions. Second operand has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-04 11:13:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:05,564 INFO L93 Difference]: Finished difference Result 642 states and 825 transitions. [2025-03-04 11:13:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 11:13:05,568 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 118 [2025-03-04 11:13:05,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:05,570 INFO L225 Difference]: With dead ends: 642 [2025-03-04 11:13:05,570 INFO L226 Difference]: Without dead ends: 641 [2025-03-04 11:13:05,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:13:05,571 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 334 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:05,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 485 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 11:13:05,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2025-03-04 11:13:05,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 530. [2025-03-04 11:13:05,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 437 states have (on average 1.2173913043478262) internal successors, (532), 447 states have internal predecessors, (532), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 11:13:05,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 694 transitions. [2025-03-04 11:13:05,608 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 694 transitions. Word has length 118 [2025-03-04 11:13:05,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:05,608 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 694 transitions. [2025-03-04 11:13:05,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-04 11:13:05,608 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 694 transitions. [2025-03-04 11:13:05,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-04 11:13:05,612 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:05,612 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:05,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-04 11:13:05,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:05,817 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:05,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:05,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1127433279, now seen corresponding path program 2 times [2025-03-04 11:13:05,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:05,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206092515] [2025-03-04 11:13:05,818 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:13:05,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:05,822 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-03-04 11:13:05,849 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 119 of 119 statements. [2025-03-04 11:13:05,849 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:13:05,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:13:05,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350784161] [2025-03-04 11:13:05,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:13:05,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:05,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:05,852 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:05,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 11:13:05,879 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-03-04 11:13:05,887 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 119 statements. [2025-03-04 11:13:05,887 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 11:13:05,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:05,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:13:05,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2025-03-04 11:13:05,968 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:13:05,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:05,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206092515] [2025-03-04 11:13:05,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:13:05,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350784161] [2025-03-04 11:13:05,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350784161] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:13:05,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:13:05,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 11:13:05,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85616647] [2025-03-04 11:13:05,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:13:05,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:13:05,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:05,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:13:05,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:13:05,970 INFO L87 Difference]: Start difference. First operand 530 states and 694 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:13:06,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:06,069 INFO L93 Difference]: Finished difference Result 530 states and 694 transitions. [2025-03-04 11:13:06,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:13:06,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 119 [2025-03-04 11:13:06,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:06,071 INFO L225 Difference]: With dead ends: 530 [2025-03-04 11:13:06,071 INFO L226 Difference]: Without dead ends: 529 [2025-03-04 11:13:06,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:13:06,072 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 49 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:06,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 77 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:13:06,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2025-03-04 11:13:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 501. [2025-03-04 11:13:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 413 states have (on average 1.1864406779661016) internal successors, (490), 422 states have internal predecessors, (490), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-03-04 11:13:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 644 transitions. [2025-03-04 11:13:06,107 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 644 transitions. Word has length 119 [2025-03-04 11:13:06,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:06,108 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 644 transitions. [2025-03-04 11:13:06,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 11:13:06,108 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 644 transitions. [2025-03-04 11:13:06,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-04 11:13:06,109 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:06,109 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:06,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2025-03-04 11:13:06,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:06,310 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:06,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:06,310 INFO L85 PathProgramCache]: Analyzing trace with hash 720572812, now seen corresponding path program 4 times [2025-03-04 11:13:06,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:06,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082107658] [2025-03-04 11:13:06,310 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:13:06,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:06,315 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 122 statements into 2 equivalence classes. [2025-03-04 11:13:06,330 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 122 of 122 statements. [2025-03-04 11:13:06,331 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:13:06,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:06,531 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 11:13:06,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:06,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082107658] [2025-03-04 11:13:06,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082107658] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:06,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468818440] [2025-03-04 11:13:06,532 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:13:06,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:06,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:06,534 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:06,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 11:13:06,558 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 122 statements into 2 equivalence classes. [2025-03-04 11:13:06,580 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 122 of 122 statements. [2025-03-04 11:13:06,581 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:13:06,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:06,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-04 11:13:06,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 58 proven. 26 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2025-03-04 11:13:07,245 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:16,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468818440] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:16,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:13:16,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14] total 23 [2025-03-04 11:13:16,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715165966] [2025-03-04 11:13:16,099 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:16,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-04 11:13:16,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:16,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-04 11:13:16,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=715, Unknown=2, NotChecked=0, Total=812 [2025-03-04 11:13:16,100 INFO L87 Difference]: Start difference. First operand 501 states and 644 transitions. Second operand has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 24 states have internal predecessors, (119), 9 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 10 states have call predecessors, (26), 9 states have call successors, (26) [2025-03-04 11:13:18,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:18,134 INFO L93 Difference]: Finished difference Result 837 states and 1076 transitions. [2025-03-04 11:13:18,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-04 11:13:18,134 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 24 states have internal predecessors, (119), 9 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 10 states have call predecessors, (26), 9 states have call successors, (26) Word has length 122 [2025-03-04 11:13:18,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:18,136 INFO L225 Difference]: With dead ends: 837 [2025-03-04 11:13:18,136 INFO L226 Difference]: Without dead ends: 831 [2025-03-04 11:13:18,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=769, Invalid=4341, Unknown=2, NotChecked=0, Total=5112 [2025-03-04 11:13:18,138 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 687 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:18,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 401 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-04 11:13:18,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2025-03-04 11:13:18,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 620. [2025-03-04 11:13:18,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 522 states have (on average 1.185823754789272) internal successors, (619), 531 states have internal predecessors, (619), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2025-03-04 11:13:18,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 793 transitions. [2025-03-04 11:13:18,184 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 793 transitions. Word has length 122 [2025-03-04 11:13:18,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:18,184 INFO L471 AbstractCegarLoop]: Abstraction has 620 states and 793 transitions. [2025-03-04 11:13:18,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.173913043478261) internal successors, (119), 24 states have internal predecessors, (119), 9 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 10 states have call predecessors, (26), 9 states have call successors, (26) [2025-03-04 11:13:18,185 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 793 transitions. [2025-03-04 11:13:18,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-03-04 11:13:18,185 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:18,186 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:18,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-03-04 11:13:18,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2025-03-04 11:13:18,386 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:18,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:18,387 INFO L85 PathProgramCache]: Analyzing trace with hash 274993710, now seen corresponding path program 1 times [2025-03-04 11:13:18,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:18,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437562780] [2025-03-04 11:13:18,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:18,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:18,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-04 11:13:18,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-04 11:13:18,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:18,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:13:18,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787410042] [2025-03-04 11:13:18,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:18,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:18,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:18,400 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:18,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-04 11:13:18,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-04 11:13:18,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-04 11:13:18,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:18,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:18,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:13:18,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2025-03-04 11:13:18,557 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:13:18,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:18,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437562780] [2025-03-04 11:13:18,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:13:18,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787410042] [2025-03-04 11:13:18,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787410042] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:13:18,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:13:18,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:13:18,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637809742] [2025-03-04 11:13:18,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:13:18,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:13:18,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:18,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:13:18,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:13:18,559 INFO L87 Difference]: Start difference. First operand 620 states and 793 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 11:13:18,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:18,622 INFO L93 Difference]: Finished difference Result 620 states and 793 transitions. [2025-03-04 11:13:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:13:18,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 125 [2025-03-04 11:13:18,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:18,624 INFO L225 Difference]: With dead ends: 620 [2025-03-04 11:13:18,624 INFO L226 Difference]: Without dead ends: 618 [2025-03-04 11:13:18,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:13:18,625 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 24 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:18,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 61 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:13:18,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2025-03-04 11:13:18,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 480. [2025-03-04 11:13:18,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 400 states have (on average 1.1525) internal successors, (461), 407 states have internal predecessors, (461), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2025-03-04 11:13:18,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 603 transitions. [2025-03-04 11:13:18,663 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 603 transitions. Word has length 125 [2025-03-04 11:13:18,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:18,663 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 603 transitions. [2025-03-04 11:13:18,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 11:13:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 603 transitions. [2025-03-04 11:13:18,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-04 11:13:18,664 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:18,665 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:18,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-04 11:13:18,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2025-03-04 11:13:18,866 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:18,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:18,866 INFO L85 PathProgramCache]: Analyzing trace with hash -555045125, now seen corresponding path program 1 times [2025-03-04 11:13:18,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:18,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888451469] [2025-03-04 11:13:18,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:18,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:18,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-04 11:13:18,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-04 11:13:18,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:18,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:13:18,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1603137874] [2025-03-04 11:13:18,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:18,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:18,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:18,884 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:18,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-04 11:13:18,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-04 11:13:18,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-04 11:13:18,934 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:18,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:18,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-04 11:13:18,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 11:13:19,236 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:19,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:19,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888451469] [2025-03-04 11:13:19,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:13:19,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603137874] [2025-03-04 11:13:19,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603137874] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:19,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:13:19,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 11:13:19,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994858590] [2025-03-04 11:13:19,482 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:19,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:13:19,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:19,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:13:19,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:13:19,484 INFO L87 Difference]: Start difference. First operand 480 states and 603 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 11:13:19,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:19,829 INFO L93 Difference]: Finished difference Result 484 states and 607 transitions. [2025-03-04 11:13:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 11:13:19,830 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 132 [2025-03-04 11:13:19,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:19,831 INFO L225 Difference]: With dead ends: 484 [2025-03-04 11:13:19,831 INFO L226 Difference]: Without dead ends: 483 [2025-03-04 11:13:19,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:13:19,832 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 15 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:19,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 191 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:13:19,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2025-03-04 11:13:19,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 481. [2025-03-04 11:13:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 401 states have (on average 1.1521197007481296) internal successors, (462), 408 states have internal predecessors, (462), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2025-03-04 11:13:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 604 transitions. [2025-03-04 11:13:19,869 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 604 transitions. Word has length 132 [2025-03-04 11:13:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:19,869 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 604 transitions. [2025-03-04 11:13:19,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 11:13:19,869 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 604 transitions. [2025-03-04 11:13:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-04 11:13:19,870 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:19,870 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:19,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-04 11:13:20,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-04 11:13:20,071 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:20,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:20,071 INFO L85 PathProgramCache]: Analyzing trace with hash -26529712, now seen corresponding path program 1 times [2025-03-04 11:13:20,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:20,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197909202] [2025-03-04 11:13:20,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:20,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:20,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 11:13:20,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 11:13:20,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:20,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:13:20,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803889928] [2025-03-04 11:13:20,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:20,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:20,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:20,085 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:20,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-04 11:13:20,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 11:13:20,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 11:13:20,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:20,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:20,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-04 11:13:20,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:20,534 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 11:13:20,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:20,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:20,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197909202] [2025-03-04 11:13:20,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:13:20,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803889928] [2025-03-04 11:13:20,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803889928] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:20,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:13:20,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2025-03-04 11:13:20,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907557632] [2025-03-04 11:13:20,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:20,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-04 11:13:20,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:20,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-04 11:13:20,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:13:20,881 INFO L87 Difference]: Start difference. First operand 481 states and 604 transitions. Second operand has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2025-03-04 11:13:21,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:21,294 INFO L93 Difference]: Finished difference Result 489 states and 611 transitions. [2025-03-04 11:13:21,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 11:13:21,294 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 133 [2025-03-04 11:13:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:21,296 INFO L225 Difference]: With dead ends: 489 [2025-03-04 11:13:21,296 INFO L226 Difference]: Without dead ends: 484 [2025-03-04 11:13:21,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2025-03-04 11:13:21,297 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 32 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:21,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 275 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:13:21,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2025-03-04 11:13:21,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 481. [2025-03-04 11:13:21,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 401 states have (on average 1.14713216957606) internal successors, (460), 408 states have internal predecessors, (460), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2025-03-04 11:13:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 602 transitions. [2025-03-04 11:13:21,334 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 602 transitions. Word has length 133 [2025-03-04 11:13:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:21,334 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 602 transitions. [2025-03-04 11:13:21,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2025-03-04 11:13:21,335 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 602 transitions. [2025-03-04 11:13:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-03-04 11:13:21,336 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:21,336 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:21,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-03-04 11:13:21,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:21,543 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:21,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash 285464950, now seen corresponding path program 3 times [2025-03-04 11:13:21,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:21,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506734293] [2025-03-04 11:13:21,544 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:13:21,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:21,548 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 136 statements into 9 equivalence classes. [2025-03-04 11:13:21,569 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 136 of 136 statements. [2025-03-04 11:13:21,569 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-04 11:13:21,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:13:21,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754312350] [2025-03-04 11:13:21,570 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:13:21,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:21,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:21,576 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:21,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-04 11:13:21,604 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 136 statements into 9 equivalence classes. [2025-03-04 11:13:21,617 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 54 of 136 statements. [2025-03-04 11:13:21,618 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-04 11:13:21,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:21,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 11:13:21,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:21,731 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2025-03-04 11:13:21,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:21,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:21,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506734293] [2025-03-04 11:13:21,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:13:21,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754312350] [2025-03-04 11:13:21,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754312350] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:21,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:13:21,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 11:13:21,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583504167] [2025-03-04 11:13:21,913 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:21,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:13:21,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:21,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:13:21,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:13:21,914 INFO L87 Difference]: Start difference. First operand 481 states and 602 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 11:13:22,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:22,122 INFO L93 Difference]: Finished difference Result 483 states and 604 transitions. [2025-03-04 11:13:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:13:22,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 136 [2025-03-04 11:13:22,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:22,124 INFO L225 Difference]: With dead ends: 483 [2025-03-04 11:13:22,124 INFO L226 Difference]: Without dead ends: 482 [2025-03-04 11:13:22,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2025-03-04 11:13:22,124 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 72 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:22,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 79 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:13:22,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2025-03-04 11:13:22,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 480. [2025-03-04 11:13:22,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 401 states have (on average 1.14214463840399) internal successors, (458), 407 states have internal predecessors, (458), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2025-03-04 11:13:22,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 600 transitions. [2025-03-04 11:13:22,161 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 600 transitions. Word has length 136 [2025-03-04 11:13:22,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:22,161 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 600 transitions. [2025-03-04 11:13:22,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 11:13:22,161 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 600 transitions. [2025-03-04 11:13:22,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-03-04 11:13:22,162 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:22,162 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:22,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-03-04 11:13:22,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-04 11:13:22,366 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:22,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:22,366 INFO L85 PathProgramCache]: Analyzing trace with hash 259478837, now seen corresponding path program 1 times [2025-03-04 11:13:22,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:22,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404637438] [2025-03-04 11:13:22,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:22,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:22,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-04 11:13:22,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-04 11:13:22,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:22,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:13:22,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792474664] [2025-03-04 11:13:22,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:22,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:22,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:22,386 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:22,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-04 11:13:22,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-04 11:13:22,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-04 11:13:22,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:22,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:22,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-04 11:13:22,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:22,908 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 11:13:22,908 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:23,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:23,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404637438] [2025-03-04 11:13:23,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:13:23,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792474664] [2025-03-04 11:13:23,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792474664] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:23,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:13:23,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-03-04 11:13:23,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761108568] [2025-03-04 11:13:23,515 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:23,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-04 11:13:23,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:23,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-04 11:13:23,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2025-03-04 11:13:23,516 INFO L87 Difference]: Start difference. First operand 480 states and 600 transitions. Second operand has 17 states, 16 states have (on average 4.0625) internal successors, (65), 17 states have internal predecessors, (65), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2025-03-04 11:13:23,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:23,979 INFO L93 Difference]: Finished difference Result 483 states and 602 transitions. [2025-03-04 11:13:23,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 11:13:23,980 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 17 states have internal predecessors, (65), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 137 [2025-03-04 11:13:23,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:23,981 INFO L225 Difference]: With dead ends: 483 [2025-03-04 11:13:23,982 INFO L226 Difference]: Without dead ends: 480 [2025-03-04 11:13:23,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2025-03-04 11:13:23,982 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 34 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:23,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 302 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:13:23,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2025-03-04 11:13:24,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 478. [2025-03-04 11:13:24,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 399 states have (on average 1.1403508771929824) internal successors, (455), 405 states have internal predecessors, (455), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2025-03-04 11:13:24,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 597 transitions. [2025-03-04 11:13:24,028 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 597 transitions. Word has length 137 [2025-03-04 11:13:24,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:24,028 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 597 transitions. [2025-03-04 11:13:24,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 17 states have internal predecessors, (65), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2025-03-04 11:13:24,028 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 597 transitions. [2025-03-04 11:13:24,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-04 11:13:24,029 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:24,029 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:24,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-04 11:13:24,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-04 11:13:24,230 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:24,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:24,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1852046208, now seen corresponding path program 2 times [2025-03-04 11:13:24,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:24,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186121763] [2025-03-04 11:13:24,231 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:13:24,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:24,238 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 155 statements into 2 equivalence classes. [2025-03-04 11:13:24,246 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-03-04 11:13:24,247 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:13:24,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:24,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:24,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186121763] [2025-03-04 11:13:24,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186121763] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:24,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62754359] [2025-03-04 11:13:24,396 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:13:24,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:24,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:24,398 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:24,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-04 11:13:24,427 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 155 statements into 2 equivalence classes. [2025-03-04 11:13:24,454 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-03-04 11:13:24,455 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:13:24,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:24,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-04 11:13:24,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:24,657 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:24,657 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:24,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62754359] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:13:24,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:13:24,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 6] total 16 [2025-03-04 11:13:24,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712670246] [2025-03-04 11:13:24,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:24,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:13:24,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:24,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:13:24,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:13:24,850 INFO L87 Difference]: Start difference. First operand 478 states and 597 transitions. Second operand has 16 states, 16 states have (on average 8.5625) internal successors, (137), 16 states have internal predecessors, (137), 11 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) [2025-03-04 11:13:25,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:25,104 INFO L93 Difference]: Finished difference Result 542 states and 673 transitions. [2025-03-04 11:13:25,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:13:25,104 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.5625) internal successors, (137), 16 states have internal predecessors, (137), 11 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) Word has length 155 [2025-03-04 11:13:25,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:25,106 INFO L225 Difference]: With dead ends: 542 [2025-03-04 11:13:25,106 INFO L226 Difference]: Without dead ends: 536 [2025-03-04 11:13:25,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 296 SyntacticMatches, 8 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:13:25,107 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 85 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:25,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 268 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:13:25,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2025-03-04 11:13:25,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 510. [2025-03-04 11:13:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 425 states have (on average 1.131764705882353) internal successors, (481), 431 states have internal predecessors, (481), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-03-04 11:13:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 635 transitions. [2025-03-04 11:13:25,153 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 635 transitions. Word has length 155 [2025-03-04 11:13:25,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:25,153 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 635 transitions. [2025-03-04 11:13:25,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.5625) internal successors, (137), 16 states have internal predecessors, (137), 11 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 11 states have call predecessors, (39), 11 states have call successors, (39) [2025-03-04 11:13:25,153 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 635 transitions. [2025-03-04 11:13:25,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-04 11:13:25,154 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:25,154 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:25,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-04 11:13:25,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-04 11:13:25,359 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:25,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:25,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1858097178, now seen corresponding path program 1 times [2025-03-04 11:13:25,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:25,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358317391] [2025-03-04 11:13:25,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:25,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:25,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-03-04 11:13:25,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-03-04 11:13:25,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:25,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 37 proven. 54 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-04 11:13:25,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358317391] [2025-03-04 11:13:25,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358317391] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919873842] [2025-03-04 11:13:25,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:25,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:25,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:25,567 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:25,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-04 11:13:25,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-03-04 11:13:25,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-03-04 11:13:25,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:25,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:25,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 11:13:25,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:26,009 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 12 proven. 79 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-04 11:13:26,010 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:26,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919873842] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:26,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:13:26,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12] total 18 [2025-03-04 11:13:26,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751757034] [2025-03-04 11:13:26,091 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:26,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 11:13:26,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:26,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 11:13:26,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2025-03-04 11:13:26,092 INFO L87 Difference]: Start difference. First operand 510 states and 635 transitions. Second operand has 18 states, 18 states have (on average 8.0) internal successors, (144), 18 states have internal predecessors, (144), 11 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34) [2025-03-04 11:13:26,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:26,510 INFO L93 Difference]: Finished difference Result 560 states and 692 transitions. [2025-03-04 11:13:26,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 11:13:26,511 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.0) internal successors, (144), 18 states have internal predecessors, (144), 11 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34) Word has length 157 [2025-03-04 11:13:26,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:26,512 INFO L225 Difference]: With dead ends: 560 [2025-03-04 11:13:26,512 INFO L226 Difference]: Without dead ends: 329 [2025-03-04 11:13:26,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2025-03-04 11:13:26,513 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 52 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:26,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 360 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:13:26,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2025-03-04 11:13:26,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2025-03-04 11:13:26,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 266 states have (on average 1.105263157894737) internal successors, (294), 272 states have internal predecessors, (294), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-03-04 11:13:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 404 transitions. [2025-03-04 11:13:26,549 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 404 transitions. Word has length 157 [2025-03-04 11:13:26,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:26,549 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 404 transitions. [2025-03-04 11:13:26,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.0) internal successors, (144), 18 states have internal predecessors, (144), 11 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 11 states have call predecessors, (34), 11 states have call successors, (34) [2025-03-04 11:13:26,549 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 404 transitions. [2025-03-04 11:13:26,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-04 11:13:26,550 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:26,550 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:26,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2025-03-04 11:13:26,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:26,750 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:26,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:26,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1516830839, now seen corresponding path program 1 times [2025-03-04 11:13:26,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:26,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773126312] [2025-03-04 11:13:26,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:26,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:26,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-04 11:13:26,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-04 11:13:26,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:26,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 26 proven. 60 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:26,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:26,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773126312] [2025-03-04 11:13:26,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773126312] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:26,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410518797] [2025-03-04 11:13:26,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:26,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:26,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:26,909 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:26,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-04 11:13:26,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-04 11:13:26,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-04 11:13:26,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:26,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:26,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:13:26,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2025-03-04 11:13:27,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:13:27,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410518797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:13:27,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:13:27,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-03-04 11:13:27,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862023267] [2025-03-04 11:13:27,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:13:27,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:13:27,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:27,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:13:27,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:13:27,028 INFO L87 Difference]: Start difference. First operand 329 states and 404 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 11:13:27,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:27,115 INFO L93 Difference]: Finished difference Result 329 states and 404 transitions. [2025-03-04 11:13:27,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:13:27,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 158 [2025-03-04 11:13:27,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:27,117 INFO L225 Difference]: With dead ends: 329 [2025-03-04 11:13:27,117 INFO L226 Difference]: Without dead ends: 328 [2025-03-04 11:13:27,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:13:27,118 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 26 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:27,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 83 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:13:27,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2025-03-04 11:13:27,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 318. [2025-03-04 11:13:27,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 258 states have (on average 1.0968992248062015) internal successors, (283), 263 states have internal predecessors, (283), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-03-04 11:13:27,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 389 transitions. [2025-03-04 11:13:27,150 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 389 transitions. Word has length 158 [2025-03-04 11:13:27,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:27,151 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 389 transitions. [2025-03-04 11:13:27,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 11:13:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 389 transitions. [2025-03-04 11:13:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-03-04 11:13:27,152 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:27,152 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:27,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-03-04 11:13:27,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2025-03-04 11:13:27,353 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:27,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:27,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2110480500, now seen corresponding path program 1 times [2025-03-04 11:13:27,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:27,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978971596] [2025-03-04 11:13:27,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:27,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:27,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-03-04 11:13:27,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-03-04 11:13:27,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:27,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:27,625 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:27,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:27,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978971596] [2025-03-04 11:13:27,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978971596] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:27,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468656985] [2025-03-04 11:13:27,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:27,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:27,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:27,628 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:27,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-04 11:13:27,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-03-04 11:13:27,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-03-04 11:13:27,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:27,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:27,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-04 11:13:27,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:27,993 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:27,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:30,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468656985] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:13:30,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:13:30,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 8] total 29 [2025-03-04 11:13:30,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257730616] [2025-03-04 11:13:30,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:30,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-04 11:13:30,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:30,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-04 11:13:30,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:13:30,963 INFO L87 Difference]: Start difference. First operand 318 states and 389 transitions. Second operand has 30 states, 29 states have (on average 7.344827586206897) internal successors, (213), 30 states have internal predecessors, (213), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2025-03-04 11:13:34,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:34,261 INFO L93 Difference]: Finished difference Result 947 states and 1149 transitions. [2025-03-04 11:13:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-03-04 11:13:34,262 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 7.344827586206897) internal successors, (213), 30 states have internal predecessors, (213), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) Word has length 162 [2025-03-04 11:13:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:34,264 INFO L225 Difference]: With dead ends: 947 [2025-03-04 11:13:34,264 INFO L226 Difference]: Without dead ends: 873 [2025-03-04 11:13:34,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1154, Invalid=2038, Unknown=0, NotChecked=0, Total=3192 [2025-03-04 11:13:34,266 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 699 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:34,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [708 Valid, 772 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-04 11:13:34,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2025-03-04 11:13:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 627. [2025-03-04 11:13:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 525 states have (on average 1.1028571428571428) internal successors, (579), 530 states have internal predecessors, (579), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2025-03-04 11:13:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 769 transitions. [2025-03-04 11:13:34,357 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 769 transitions. Word has length 162 [2025-03-04 11:13:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:34,357 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 769 transitions. [2025-03-04 11:13:34,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 7.344827586206897) internal successors, (213), 30 states have internal predecessors, (213), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2025-03-04 11:13:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 769 transitions. [2025-03-04 11:13:34,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-04 11:13:34,358 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:34,358 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:34,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2025-03-04 11:13:34,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:34,559 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:34,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:34,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1186579951, now seen corresponding path program 1 times [2025-03-04 11:13:34,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:34,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267231726] [2025-03-04 11:13:34,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:34,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:34,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 11:13:34,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 11:13:34,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:34,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:34,840 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:34,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:34,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267231726] [2025-03-04 11:13:34,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267231726] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:34,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183391175] [2025-03-04 11:13:34,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:34,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:34,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:34,843 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:34,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-04 11:13:34,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 11:13:34,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 11:13:34,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:34,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:34,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 11:13:34,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:35,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:37,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183391175] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:13:37,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:13:37,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 33 [2025-03-04 11:13:37,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227523632] [2025-03-04 11:13:37,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:37,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-04 11:13:37,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:37,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-04 11:13:37,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=914, Unknown=0, NotChecked=0, Total=1122 [2025-03-04 11:13:37,104 INFO L87 Difference]: Start difference. First operand 627 states and 769 transitions. Second operand has 34 states, 33 states have (on average 6.484848484848484) internal successors, (214), 34 states have internal predecessors, (214), 20 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 20 states have call predecessors, (51), 20 states have call successors, (51) [2025-03-04 11:13:39,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:39,760 INFO L93 Difference]: Finished difference Result 1125 states and 1401 transitions. [2025-03-04 11:13:39,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-04 11:13:39,761 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.484848484848484) internal successors, (214), 34 states have internal predecessors, (214), 20 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 20 states have call predecessors, (51), 20 states have call successors, (51) Word has length 164 [2025-03-04 11:13:39,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:39,764 INFO L225 Difference]: With dead ends: 1125 [2025-03-04 11:13:39,764 INFO L226 Difference]: Without dead ends: 1124 [2025-03-04 11:13:39,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 993 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=990, Invalid=3042, Unknown=0, NotChecked=0, Total=4032 [2025-03-04 11:13:39,765 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 567 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:39,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1341 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-04 11:13:39,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2025-03-04 11:13:39,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 904. [2025-03-04 11:13:39,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 772 states have (on average 1.1308290155440415) internal successors, (873), 777 states have internal predecessors, (873), 125 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2025-03-04 11:13:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1123 transitions. [2025-03-04 11:13:39,911 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1123 transitions. Word has length 164 [2025-03-04 11:13:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:39,912 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1123 transitions. [2025-03-04 11:13:39,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.484848484848484) internal successors, (214), 34 states have internal predecessors, (214), 20 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 20 states have call predecessors, (51), 20 states have call successors, (51) [2025-03-04 11:13:39,912 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1123 transitions. [2025-03-04 11:13:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2025-03-04 11:13:39,913 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:39,913 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:39,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2025-03-04 11:13:40,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2025-03-04 11:13:40,114 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:40,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:40,114 INFO L85 PathProgramCache]: Analyzing trace with hash -276493776, now seen corresponding path program 1 times [2025-03-04 11:13:40,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:40,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439921325] [2025-03-04 11:13:40,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:40,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:40,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 166 statements into 1 equivalence classes. [2025-03-04 11:13:40,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 166 of 166 statements. [2025-03-04 11:13:40,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:40,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:40,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:40,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439921325] [2025-03-04 11:13:40,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439921325] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:40,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374107821] [2025-03-04 11:13:40,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:13:40,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:40,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:40,397 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:40,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-04 11:13:40,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 166 statements into 1 equivalence classes. [2025-03-04 11:13:40,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 166 of 166 statements. [2025-03-04 11:13:40,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:13:40,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:40,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-04 11:13:40,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:40,922 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:41,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374107821] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:41,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:13:41,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2025-03-04 11:13:41,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102547900] [2025-03-04 11:13:41,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:41,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-04 11:13:41,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:41,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-04 11:13:41,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2025-03-04 11:13:41,160 INFO L87 Difference]: Start difference. First operand 904 states and 1123 transitions. Second operand has 25 states, 24 states have (on average 6.333333333333333) internal successors, (152), 25 states have internal predecessors, (152), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-03-04 11:13:42,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:42,523 INFO L93 Difference]: Finished difference Result 1402 states and 1741 transitions. [2025-03-04 11:13:42,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-04 11:13:42,524 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.333333333333333) internal successors, (152), 25 states have internal predecessors, (152), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 166 [2025-03-04 11:13:42,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:42,527 INFO L225 Difference]: With dead ends: 1402 [2025-03-04 11:13:42,527 INFO L226 Difference]: Without dead ends: 1051 [2025-03-04 11:13:42,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=464, Invalid=2506, Unknown=0, NotChecked=0, Total=2970 [2025-03-04 11:13:42,528 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 456 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:42,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 770 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-04 11:13:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2025-03-04 11:13:42,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 896. [2025-03-04 11:13:42,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 764 states have (on average 1.1217277486910995) internal successors, (857), 769 states have internal predecessors, (857), 125 states have call successors, (125), 1 states have call predecessors, (125), 1 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2025-03-04 11:13:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1107 transitions. [2025-03-04 11:13:42,681 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1107 transitions. Word has length 166 [2025-03-04 11:13:42,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:42,682 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1107 transitions. [2025-03-04 11:13:42,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.333333333333333) internal successors, (152), 25 states have internal predecessors, (152), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-03-04 11:13:42,682 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1107 transitions. [2025-03-04 11:13:42,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-03-04 11:13:42,683 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:42,683 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:42,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2025-03-04 11:13:42,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:42,884 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:42,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:42,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1090819029, now seen corresponding path program 5 times [2025-03-04 11:13:42,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:42,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910826389] [2025-03-04 11:13:42,884 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:13:42,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:42,890 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 170 statements into 9 equivalence classes. [2025-03-04 11:13:42,908 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 170 of 170 statements. [2025-03-04 11:13:42,909 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-03-04 11:13:42,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 11:13:43,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:43,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910826389] [2025-03-04 11:13:43,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910826389] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:43,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290341324] [2025-03-04 11:13:43,572 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:13:43,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:43,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:43,574 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:43,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-04 11:13:43,602 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 170 statements into 9 equivalence classes. [2025-03-04 11:13:43,650 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 170 of 170 statements. [2025-03-04 11:13:43,650 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-03-04 11:13:43,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:43,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-03-04 11:13:43,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:45,323 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 42 proven. 123 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2025-03-04 11:13:45,323 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:45,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290341324] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:45,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:13:45,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 25] total 40 [2025-03-04 11:13:45,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474890848] [2025-03-04 11:13:45,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:45,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-03-04 11:13:45,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:45,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-03-04 11:13:45,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1784, Unknown=0, NotChecked=0, Total=1980 [2025-03-04 11:13:45,970 INFO L87 Difference]: Start difference. First operand 896 states and 1107 transitions. Second operand has 41 states, 40 states have (on average 4.075) internal successors, (163), 41 states have internal predecessors, (163), 15 states have call successors, (36), 1 states have call predecessors, (36), 2 states have return successors, (36), 14 states have call predecessors, (36), 15 states have call successors, (36) [2025-03-04 11:13:49,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:13:49,658 INFO L93 Difference]: Finished difference Result 1089 states and 1343 transitions. [2025-03-04 11:13:49,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-03-04 11:13:49,659 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 4.075) internal successors, (163), 41 states have internal predecessors, (163), 15 states have call successors, (36), 1 states have call predecessors, (36), 2 states have return successors, (36), 14 states have call predecessors, (36), 15 states have call successors, (36) Word has length 170 [2025-03-04 11:13:49,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:13:49,662 INFO L225 Difference]: With dead ends: 1089 [2025-03-04 11:13:49,662 INFO L226 Difference]: Without dead ends: 1084 [2025-03-04 11:13:49,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=703, Invalid=4997, Unknown=0, NotChecked=0, Total=5700 [2025-03-04 11:13:49,663 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 757 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 3774 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 3945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 3774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:13:49,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 852 Invalid, 3945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 3774 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-03-04 11:13:49,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2025-03-04 11:13:49,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 762. [2025-03-04 11:13:49,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 642 states have (on average 1.104361370716511) internal successors, (709), 647 states have internal predecessors, (709), 113 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2025-03-04 11:13:49,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 935 transitions. [2025-03-04 11:13:49,798 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 935 transitions. Word has length 170 [2025-03-04 11:13:49,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:13:49,798 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 935 transitions. [2025-03-04 11:13:49,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.075) internal successors, (163), 41 states have internal predecessors, (163), 15 states have call successors, (36), 1 states have call predecessors, (36), 2 states have return successors, (36), 14 states have call predecessors, (36), 15 states have call successors, (36) [2025-03-04 11:13:49,799 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 935 transitions. [2025-03-04 11:13:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-04 11:13:49,800 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:13:49,800 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 11:13:49,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2025-03-04 11:13:50,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-03-04 11:13:50,000 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:13:50,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:13:50,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1776201025, now seen corresponding path program 2 times [2025-03-04 11:13:50,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:13:50,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933464458] [2025-03-04 11:13:50,001 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:13:50,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:13:50,006 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 188 statements into 2 equivalence classes. [2025-03-04 11:13:50,014 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 188 of 188 statements. [2025-03-04 11:13:50,014 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:13:50,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 24 proven. 54 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2025-03-04 11:13:50,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:13:50,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933464458] [2025-03-04 11:13:50,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933464458] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:13:50,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495460850] [2025-03-04 11:13:50,293 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:13:50,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:13:50,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:13:50,295 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:13:50,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-03-04 11:13:50,323 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 188 statements into 2 equivalence classes. [2025-03-04 11:13:50,354 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 188 of 188 statements. [2025-03-04 11:13:50,354 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:13:50,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:13:50,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-04 11:13:50,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:13:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2025-03-04 11:13:51,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:13:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2025-03-04 11:13:56,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495460850] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:13:56,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:13:56,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 16] total 45 [2025-03-04 11:13:56,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515485179] [2025-03-04 11:13:56,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:13:56,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-03-04 11:13:56,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:13:56,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-03-04 11:13:56,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=1508, Unknown=0, NotChecked=0, Total=2070 [2025-03-04 11:13:56,878 INFO L87 Difference]: Start difference. First operand 762 states and 935 transitions. Second operand has 46 states, 45 states have (on average 5.022222222222222) internal successors, (226), 46 states have internal predecessors, (226), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54)