./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_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 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:29:13,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:29:13,731 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:29:13,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:29:13,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:29:13,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:29:13,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:29:13,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:29:13,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:29:13,757 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:29:13,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:29:13,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:29:13,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:29:13,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:29:13,759 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:29:13,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:29:13,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:29:13,759 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:29:13,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:29:13,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:29:13,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:29:13,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:29:13,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:29:13,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:29:13,760 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:29:13,760 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:29:13,760 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:29:13,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:29:13,760 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:29:13,760 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:29:13,760 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:29:13,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:29:13,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:29:13,761 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:29:13,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:29:13,762 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 -> 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 [2025-03-09 02:29:13,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:29:13,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:29:13,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:29:13,988 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:29:13,988 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:29:13,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c [2025-03-09 02:29:15,105 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22bf82c97/45e66ac78aef4c0d88fc37463a3d2e1f/FLAGb971ed5a3 [2025-03-09 02:29:15,272 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:29:15,273 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c [2025-03-09 02:29:15,287 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22bf82c97/45e66ac78aef4c0d88fc37463a3d2e1f/FLAGb971ed5a3 [2025-03-09 02:29:15,656 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22bf82c97/45e66ac78aef4c0d88fc37463a3d2e1f [2025-03-09 02:29:15,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:29:15,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:29:15,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:29:15,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:29:15,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:29:15,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7949e76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15, skipping insertion in model container [2025-03-09 02:29:15,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:29:15,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:29:15,780 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:29:15,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:29:15,811 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:29:15,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15 WrapperNode [2025-03-09 02:29:15,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:29:15,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:29:15,813 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:29:15,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:29:15,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,838 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2025-03-09 02:29:15,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:29:15,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:29:15,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:29:15,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:29:15,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,854 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 02:29:15,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,856 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:29:15,859 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:29:15,859 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:29:15,859 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:29:15,860 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (1/1) ... [2025-03-09 02:29:15,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:29:15,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:15,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 02:29:15,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 02:29:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:29:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 02:29:15,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 02:29:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:29:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:29:15,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:29:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:29:15,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:29:15,945 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:29:15,947 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:29:16,205 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2025-03-09 02:29:16,205 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:29:16,215 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:29:16,215 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:29:16,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:29:16 BoogieIcfgContainer [2025-03-09 02:29:16,215 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:29:16,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:29:16,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:29:16,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:29:16,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:29:15" (1/3) ... [2025-03-09 02:29:16,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bb664b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:29:16, skipping insertion in model container [2025-03-09 02:29:16,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:29:15" (2/3) ... [2025-03-09 02:29:16,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bb664b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:29:16, skipping insertion in model container [2025-03-09 02:29:16,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:29:16" (3/3) ... [2025-03-09 02:29:16,222 INFO L128 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound50.c [2025-03-09 02:29:16,231 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:29:16,232 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prod4br-ll_valuebound50.c that has 3 procedures, 112 locations, 1 initial locations, 1 loop locations, and 42 error locations. [2025-03-09 02:29:16,265 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:29:16,275 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;@667dd9c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:29:16,275 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2025-03-09 02:29:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 61 states have (on average 1.8032786885245902) internal successors, (110), 103 states have internal predecessors, (110), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-09 02:29:16,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-09 02:29:16,282 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:16,283 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:16,283 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:16,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:16,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1778423567, now seen corresponding path program 1 times [2025-03-09 02:29:16,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:16,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487559591] [2025-03-09 02:29:16,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:16,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:16,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:29:16,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:29:16,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:16,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:16,397 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:29:16,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:16,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487559591] [2025-03-09 02:29:16,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487559591] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:16,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097511258] [2025-03-09 02:29:16,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:16,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:16,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:16,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:16,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 02:29:16,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:29:16,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:29:16,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:16,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:16,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-09 02:29:16,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:16,464 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:29:16,465 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:16,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097511258] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:16,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:16,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-09 02:29:16,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035832680] [2025-03-09 02:29:16,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:16,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 02:29:16,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:16,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 02:29:16,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:29:16,485 INFO L87 Difference]: Start difference. First operand has 112 states, 61 states have (on average 1.8032786885245902) internal successors, (110), 103 states have internal predecessors, (110), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:29:16,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:16,505 INFO L93 Difference]: Finished difference Result 220 states and 245 transitions. [2025-03-09 02:29:16,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 02:29:16,506 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2025-03-09 02:29:16,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:16,511 INFO L225 Difference]: With dead ends: 220 [2025-03-09 02:29:16,511 INFO L226 Difference]: Without dead ends: 105 [2025-03-09 02:29:16,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:29:16,515 INFO L435 NwaCegarLoop]: 118 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, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:16,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:29:16,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-03-09 02:29:16,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-03-09 02:29:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 56 states have (on average 1.8035714285714286) internal successors, (101), 97 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:29:16,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2025-03-09 02:29:16,550 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 20 [2025-03-09 02:29:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:16,550 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2025-03-09 02:29:16,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:29:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2025-03-09 02:29:16,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-09 02:29:16,551 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:16,551 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:16,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:16,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-09 02:29:16,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:16,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:16,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1810419568, now seen corresponding path program 1 times [2025-03-09 02:29:16,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:16,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134405253] [2025-03-09 02:29:16,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:16,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:16,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:29:16,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:29:16,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:16,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:16,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831335332] [2025-03-09 02:29:16,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:16,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:16,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:16,790 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:16,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 02:29:16,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:29:16,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:29:16,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:16,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:16,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-09 02:29:16,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:16,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:17,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:17,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134405253] [2025-03-09 02:29:17,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:17,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831335332] [2025-03-09 02:29:17,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831335332] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:17,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:17,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-09 02:29:17,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962041386] [2025-03-09 02:29:17,088 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:17,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:17,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:17,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:17,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:29:17,090 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:29:17,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:17,365 INFO L93 Difference]: Finished difference Result 142 states and 166 transitions. [2025-03-09 02:29:17,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:29:17,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2025-03-09 02:29:17,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:17,366 INFO L225 Difference]: With dead ends: 142 [2025-03-09 02:29:17,366 INFO L226 Difference]: Without dead ends: 133 [2025-03-09 02:29:17,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:29:17,367 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 282 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:17,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 206 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:17,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2025-03-09 02:29:17,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 126. [2025-03-09 02:29:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 77 states have (on average 1.7142857142857142) internal successors, (132), 116 states have internal predecessors, (132), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:29:17,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 146 transitions. [2025-03-09 02:29:17,381 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 146 transitions. Word has length 20 [2025-03-09 02:29:17,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:17,382 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 146 transitions. [2025-03-09 02:29:17,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:29:17,383 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 146 transitions. [2025-03-09 02:29:17,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-09 02:29:17,383 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:17,383 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:17,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:17,583 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,SelfDestructingSolverStorable1 [2025-03-09 02:29:17,584 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:17,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash 288431824, now seen corresponding path program 1 times [2025-03-09 02:29:17,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:17,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197852579] [2025-03-09 02:29:17,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:17,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:17,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:29:17,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:29:17,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:17,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:17,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821467524] [2025-03-09 02:29:17,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:17,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:17,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:17,603 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:17,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 02:29:17,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:29:17,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:29:17,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:17,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:17,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-09 02:29:17,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:17,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:17,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:17,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197852579] [2025-03-09 02:29:17,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:17,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821467524] [2025-03-09 02:29:17,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821467524] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:17,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:17,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 02:29:17,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542930498] [2025-03-09 02:29:17,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:17,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:29:17,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:17,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:29:17,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:29:17,724 INFO L87 Difference]: Start difference. First operand 126 states and 146 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:29:17,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:17,947 INFO L93 Difference]: Finished difference Result 171 states and 211 transitions. [2025-03-09 02:29:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:29:17,947 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2025-03-09 02:29:17,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:17,949 INFO L225 Difference]: With dead ends: 171 [2025-03-09 02:29:17,949 INFO L226 Difference]: Without dead ends: 153 [2025-03-09 02:29:17,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:29:17,950 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 430 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:17,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 188 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:17,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-03-09 02:29:17,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2025-03-09 02:29:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.6274509803921569) internal successors, (166), 139 states have internal predecessors, (166), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:29:17,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions. [2025-03-09 02:29:17,958 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 21 [2025-03-09 02:29:17,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:17,958 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 182 transitions. [2025-03-09 02:29:17,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:29:17,958 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2025-03-09 02:29:17,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-09 02:29:17,959 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:17,959 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:17,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 02:29:18,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:18,160 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:18,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:18,160 INFO L85 PathProgramCache]: Analyzing trace with hash 351452014, now seen corresponding path program 1 times [2025-03-09 02:29:18,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:18,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724333903] [2025-03-09 02:29:18,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:18,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:18,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 02:29:18,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 02:29:18,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:18,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:18,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359511256] [2025-03-09 02:29:18,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:18,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:18,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:18,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:18,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 02:29:18,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 02:29:18,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 02:29:18,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:18,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:18,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-09 02:29:18,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:18,301 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:22,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:22,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724333903] [2025-03-09 02:29:22,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:22,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359511256] [2025-03-09 02:29:22,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359511256] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:22,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:22,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-09 02:29:22,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532195817] [2025-03-09 02:29:22,412 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:22,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:22,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:22,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:22,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=67, Unknown=1, NotChecked=0, Total=90 [2025-03-09 02:29:22,415 INFO L87 Difference]: Start difference. First operand 150 states and 182 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:29:22,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:22,612 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2025-03-09 02:29:22,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:22,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2025-03-09 02:29:22,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:22,613 INFO L225 Difference]: With dead ends: 158 [2025-03-09 02:29:22,613 INFO L226 Difference]: Without dead ends: 157 [2025-03-09 02:29:22,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=30, Invalid=79, Unknown=1, NotChecked=0, Total=110 [2025-03-09 02:29:22,614 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 134 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:22,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 243 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:22,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-03-09 02:29:22,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 150. [2025-03-09 02:29:22,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.6176470588235294) internal successors, (165), 139 states have internal predecessors, (165), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:29:22,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 181 transitions. [2025-03-09 02:29:22,625 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 181 transitions. Word has length 22 [2025-03-09 02:29:22,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:22,625 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 181 transitions. [2025-03-09 02:29:22,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:29:22,625 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 181 transitions. [2025-03-09 02:29:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-09 02:29:22,626 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:22,626 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:22,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:22,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:22,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:22,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1989889394, now seen corresponding path program 1 times [2025-03-09 02:29:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:22,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067680737] [2025-03-09 02:29:22,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:22,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:22,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:29:22,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:29:22,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:22,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:22,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298292445] [2025-03-09 02:29:22,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:22,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:22,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:22,846 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:22,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 02:29:22,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:29:22,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:29:22,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:22,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:22,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-09 02:29:22,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:22,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:22,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:22,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067680737] [2025-03-09 02:29:22,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:22,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298292445] [2025-03-09 02:29:22,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298292445] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:22,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:22,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 02:29:22,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222317132] [2025-03-09 02:29:22,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:22,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:29:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:22,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:29:22,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:29:22,980 INFO L87 Difference]: Start difference. First operand 150 states and 181 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:29:23,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:23,247 INFO L93 Difference]: Finished difference Result 158 states and 188 transitions. [2025-03-09 02:29:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:29:23,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2025-03-09 02:29:23,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:23,249 INFO L225 Difference]: With dead ends: 158 [2025-03-09 02:29:23,249 INFO L226 Difference]: Without dead ends: 157 [2025-03-09 02:29:23,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:29:23,249 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 132 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:23,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 246 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:23,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-03-09 02:29:23,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 150. [2025-03-09 02:29:23,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.607843137254902) internal successors, (164), 139 states have internal predecessors, (164), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:29:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 180 transitions. [2025-03-09 02:29:23,255 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 180 transitions. Word has length 23 [2025-03-09 02:29:23,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:23,256 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 180 transitions. [2025-03-09 02:29:23,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:29:23,256 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 180 transitions. [2025-03-09 02:29:23,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-09 02:29:23,256 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:23,256 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:23,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-09 02:29:23,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:23,460 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:23,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:23,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1557029012, now seen corresponding path program 1 times [2025-03-09 02:29:23,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:23,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839235940] [2025-03-09 02:29:23,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:23,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:23,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 02:29:23,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 02:29:23,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:23,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:23,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:23,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:23,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839235940] [2025-03-09 02:29:23,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839235940] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:23,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:23,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:23,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582917208] [2025-03-09 02:29:23,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:23,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:23,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:23,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:23,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:23,530 INFO L87 Difference]: Start difference. First operand 150 states and 180 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (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) [2025-03-09 02:29:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:23,739 INFO L93 Difference]: Finished difference Result 242 states and 288 transitions. [2025-03-09 02:29:23,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:23,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (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 24 [2025-03-09 02:29:23,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:23,741 INFO L225 Difference]: With dead ends: 242 [2025-03-09 02:29:23,741 INFO L226 Difference]: Without dead ends: 241 [2025-03-09 02:29:23,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:23,743 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 93 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:23,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 165 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:23,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-03-09 02:29:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 170. [2025-03-09 02:29:23,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 121 states have (on average 1.6115702479338843) internal successors, (195), 158 states have internal predecessors, (195), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:29:23,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 213 transitions. [2025-03-09 02:29:23,761 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 213 transitions. Word has length 24 [2025-03-09 02:29:23,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:23,761 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 213 transitions. [2025-03-09 02:29:23,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (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) [2025-03-09 02:29:23,761 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 213 transitions. [2025-03-09 02:29:23,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 02:29:23,761 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:23,761 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:23,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 02:29:23,761 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:23,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:23,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1023259060, now seen corresponding path program 1 times [2025-03-09 02:29:23,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:23,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558289730] [2025-03-09 02:29:23,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:23,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:29:23,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:29:23,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:23,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:23,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:23,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558289730] [2025-03-09 02:29:23,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558289730] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:23,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:23,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:23,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117493597] [2025-03-09 02:29:23,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:23,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:23,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:23,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:23,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:23,832 INFO L87 Difference]: Start difference. First operand 170 states and 213 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2025-03-09 02:29:24,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:24,179 INFO L93 Difference]: Finished difference Result 242 states and 286 transitions. [2025-03-09 02:29:24,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:24,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 25 [2025-03-09 02:29:24,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:24,181 INFO L225 Difference]: With dead ends: 242 [2025-03-09 02:29:24,181 INFO L226 Difference]: Without dead ends: 241 [2025-03-09 02:29:24,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:24,182 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 91 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:24,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 151 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:24,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-03-09 02:29:24,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 170. [2025-03-09 02:29:24,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 121 states have (on average 1.5950413223140496) internal successors, (193), 158 states have internal predecessors, (193), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:29:24,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 211 transitions. [2025-03-09 02:29:24,195 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 211 transitions. Word has length 25 [2025-03-09 02:29:24,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:24,196 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 211 transitions. [2025-03-09 02:29:24,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2025-03-09 02:29:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 211 transitions. [2025-03-09 02:29:24,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-09 02:29:24,197 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:24,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:24,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 02:29:24,197 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:24,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:24,198 INFO L85 PathProgramCache]: Analyzing trace with hash 567109450, now seen corresponding path program 1 times [2025-03-09 02:29:24,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:24,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793843459] [2025-03-09 02:29:24,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:24,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:24,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:29:24,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:29:24,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:24,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:24,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960018156] [2025-03-09 02:29:24,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:24,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:24,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:24,221 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:24,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 02:29:24,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:29:24,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:29:24,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:24,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:24,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:29:24,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:24,315 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:24,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:24,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:24,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793843459] [2025-03-09 02:29:24,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:24,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960018156] [2025-03-09 02:29:24,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960018156] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:24,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:24,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:24,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605723780] [2025-03-09 02:29:24,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:24,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:24,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:24,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:24,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:24,316 INFO L87 Difference]: Start difference. First operand 170 states and 211 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:24,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:24,460 INFO L93 Difference]: Finished difference Result 180 states and 219 transitions. [2025-03-09 02:29:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:24,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2025-03-09 02:29:24,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:24,461 INFO L225 Difference]: With dead ends: 180 [2025-03-09 02:29:24,461 INFO L226 Difference]: Without dead ends: 177 [2025-03-09 02:29:24,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:29:24,462 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 155 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:24,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 113 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:24,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-03-09 02:29:24,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2025-03-09 02:29:24,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 125 states have (on average 1.568) internal successors, (196), 162 states have internal predecessors, (196), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:29:24,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 214 transitions. [2025-03-09 02:29:24,468 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 214 transitions. Word has length 38 [2025-03-09 02:29:24,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:24,468 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 214 transitions. [2025-03-09 02:29:24,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:24,469 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 214 transitions. [2025-03-09 02:29:24,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-09 02:29:24,472 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:24,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:24,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:24,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:24,673 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:24,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:24,674 INFO L85 PathProgramCache]: Analyzing trace with hash 400523765, now seen corresponding path program 1 times [2025-03-09 02:29:24,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:24,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624668918] [2025-03-09 02:29:24,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:24,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:24,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:29:24,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:29:24,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:24,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:24,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877693837] [2025-03-09 02:29:24,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:24,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:24,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:24,701 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:24,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 02:29:24,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:29:24,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:29:24,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:24,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:24,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:29:24,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:24,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:24,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:24,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624668918] [2025-03-09 02:29:24,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:24,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877693837] [2025-03-09 02:29:24,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877693837] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:24,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:24,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:24,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621561423] [2025-03-09 02:29:24,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:24,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:24,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:24,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:24,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:24,799 INFO L87 Difference]: Start difference. First operand 174 states and 214 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:25,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:25,016 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2025-03-09 02:29:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:25,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2025-03-09 02:29:25,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:25,017 INFO L225 Difference]: With dead ends: 234 [2025-03-09 02:29:25,017 INFO L226 Difference]: Without dead ends: 228 [2025-03-09 02:29:25,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:29:25,018 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 187 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:25,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 100 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:25,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-03-09 02:29:25,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 212. [2025-03-09 02:29:25,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 162 states have (on average 1.6419753086419753) internal successors, (266), 199 states have internal predecessors, (266), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-09 02:29:25,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 286 transitions. [2025-03-09 02:29:25,024 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 286 transitions. Word has length 39 [2025-03-09 02:29:25,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:25,025 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 286 transitions. [2025-03-09 02:29:25,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:25,025 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 286 transitions. [2025-03-09 02:29:25,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-09 02:29:25,025 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:25,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:25,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 02:29:25,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:25,226 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:25,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:25,226 INFO L85 PathProgramCache]: Analyzing trace with hash 402593246, now seen corresponding path program 1 times [2025-03-09 02:29:25,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:25,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037953804] [2025-03-09 02:29:25,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:25,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:25,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:29:25,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:29:25,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:25,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:25,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735657696] [2025-03-09 02:29:25,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:25,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:25,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:25,248 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:25,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 02:29:25,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:29:25,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:29:25,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:25,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:25,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:29:25,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:25,337 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:25,337 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:25,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037953804] [2025-03-09 02:29:25,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735657696] [2025-03-09 02:29:25,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735657696] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:25,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:25,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:25,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851799153] [2025-03-09 02:29:25,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:25,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:25,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:25,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:25,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:25,339 INFO L87 Difference]: Start difference. First operand 212 states and 286 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:25,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:25,519 INFO L93 Difference]: Finished difference Result 255 states and 348 transitions. [2025-03-09 02:29:25,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:25,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2025-03-09 02:29:25,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:25,521 INFO L225 Difference]: With dead ends: 255 [2025-03-09 02:29:25,521 INFO L226 Difference]: Without dead ends: 251 [2025-03-09 02:29:25,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:29:25,522 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 144 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:25,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 118 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:25,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2025-03-09 02:29:25,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 235. [2025-03-09 02:29:25,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 184 states have (on average 1.641304347826087) internal successors, (302), 221 states have internal predecessors, (302), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 02:29:25,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 324 transitions. [2025-03-09 02:29:25,531 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 324 transitions. Word has length 39 [2025-03-09 02:29:25,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:25,531 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 324 transitions. [2025-03-09 02:29:25,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:25,532 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 324 transitions. [2025-03-09 02:29:25,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-09 02:29:25,532 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:25,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:25,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:25,733 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,SelfDestructingSolverStorable9 [2025-03-09 02:29:25,734 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:25,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:25,734 INFO L85 PathProgramCache]: Analyzing trace with hash -468665176, now seen corresponding path program 1 times [2025-03-09 02:29:25,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:25,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55399087] [2025-03-09 02:29:25,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:25,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:25,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:29:25,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:29:25,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:25,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:25,804 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:25,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:25,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55399087] [2025-03-09 02:29:25,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55399087] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:25,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:25,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:25,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329597299] [2025-03-09 02:29:25,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:25,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:25,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:25,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:25,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:25,805 INFO L87 Difference]: Start difference. First operand 235 states and 324 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:25,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:25,957 INFO L93 Difference]: Finished difference Result 318 states and 417 transitions. [2025-03-09 02:29:25,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:25,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2025-03-09 02:29:25,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:25,959 INFO L225 Difference]: With dead ends: 318 [2025-03-09 02:29:25,960 INFO L226 Difference]: Without dead ends: 317 [2025-03-09 02:29:25,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:25,961 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 62 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:25,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 197 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2025-03-09 02:29:25,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 245. [2025-03-09 02:29:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.634020618556701) internal successors, (317), 231 states have internal predecessors, (317), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 02:29:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 339 transitions. [2025-03-09 02:29:25,972 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 339 transitions. Word has length 40 [2025-03-09 02:29:25,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:25,973 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 339 transitions. [2025-03-09 02:29:25,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 339 transitions. [2025-03-09 02:29:25,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-09 02:29:25,976 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:25,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:25,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 02:29:25,976 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:25,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:25,976 INFO L85 PathProgramCache]: Analyzing trace with hash -404511251, now seen corresponding path program 1 times [2025-03-09 02:29:25,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:25,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712938870] [2025-03-09 02:29:25,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:25,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:25,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:29:25,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:29:25,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:25,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:25,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570276839] [2025-03-09 02:29:25,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:25,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:25,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:25,989 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:25,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 02:29:26,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:29:26,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:29:26,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:26,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:26,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:29:26,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:26,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:26,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712938870] [2025-03-09 02:29:26,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570276839] [2025-03-09 02:29:26,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570276839] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:26,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:26,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:26,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233362073] [2025-03-09 02:29:26,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:26,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:26,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:26,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:26,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:26,071 INFO L87 Difference]: Start difference. First operand 245 states and 339 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:26,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:26,223 INFO L93 Difference]: Finished difference Result 257 states and 346 transitions. [2025-03-09 02:29:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:26,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2025-03-09 02:29:26,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:26,225 INFO L225 Difference]: With dead ends: 257 [2025-03-09 02:29:26,225 INFO L226 Difference]: Without dead ends: 253 [2025-03-09 02:29:26,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:29:26,225 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 194 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:26,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 84 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:26,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2025-03-09 02:29:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 245. [2025-03-09 02:29:26,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.6082474226804124) internal successors, (312), 231 states have internal predecessors, (312), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 02:29:26,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 334 transitions. [2025-03-09 02:29:26,233 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 334 transitions. Word has length 40 [2025-03-09 02:29:26,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:26,233 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 334 transitions. [2025-03-09 02:29:26,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:26,233 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 334 transitions. [2025-03-09 02:29:26,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:29:26,239 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:26,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:26,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:26,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:26,440 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:26,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:26,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1588718933, now seen corresponding path program 1 times [2025-03-09 02:29:26,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:26,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029758602] [2025-03-09 02:29:26,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:26,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:26,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:26,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:26,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:26,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:26,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046233274] [2025-03-09 02:29:26,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:26,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:26,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:26,458 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:26,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 02:29:26,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:26,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:26,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:26,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:26,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-09 02:29:26,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 02:29:26,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:29,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:29,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029758602] [2025-03-09 02:29:29,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:29,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046233274] [2025-03-09 02:29:29,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046233274] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:29,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:29,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:29:29,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741868735] [2025-03-09 02:29:29,478 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:29,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:29:29,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:29,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:29:29,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:29:29,479 INFO L87 Difference]: Start difference. First operand 245 states and 334 transitions. Second operand has 9 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:29,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:29,783 INFO L93 Difference]: Finished difference Result 266 states and 353 transitions. [2025-03-09 02:29:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:29:29,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2025-03-09 02:29:29,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:29,784 INFO L225 Difference]: With dead ends: 266 [2025-03-09 02:29:29,784 INFO L226 Difference]: Without dead ends: 259 [2025-03-09 02:29:29,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:29:29,785 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 263 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:29,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 247 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2025-03-09 02:29:29,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 252. [2025-03-09 02:29:29,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 200 states have (on average 1.575) internal successors, (315), 237 states have internal predecessors, (315), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:29,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 339 transitions. [2025-03-09 02:29:29,795 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 339 transitions. Word has length 41 [2025-03-09 02:29:29,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:29,795 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 339 transitions. [2025-03-09 02:29:29,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:29,795 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 339 transitions. [2025-03-09 02:29:29,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:29:29,796 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:29,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:29,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:29,996 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,SelfDestructingSolverStorable12 [2025-03-09 02:29:29,996 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:29,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:29,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1643718573, now seen corresponding path program 1 times [2025-03-09 02:29:29,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:29,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142420339] [2025-03-09 02:29:29,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:29,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:30,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:30,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:30,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:30,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:30,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:30,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142420339] [2025-03-09 02:29:30,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142420339] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:30,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:30,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:30,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684863664] [2025-03-09 02:29:30,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:30,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:30,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:30,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:30,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:30,098 INFO L87 Difference]: Start difference. First operand 252 states and 339 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:30,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:30,407 INFO L93 Difference]: Finished difference Result 311 states and 402 transitions. [2025-03-09 02:29:30,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:30,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2025-03-09 02:29:30,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:30,409 INFO L225 Difference]: With dead ends: 311 [2025-03-09 02:29:30,409 INFO L226 Difference]: Without dead ends: 310 [2025-03-09 02:29:30,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:30,409 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 53 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:30,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 231 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-03-09 02:29:30,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 254. [2025-03-09 02:29:30,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 202 states have (on average 1.5693069306930694) internal successors, (317), 239 states have internal predecessors, (317), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 341 transitions. [2025-03-09 02:29:30,416 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 341 transitions. Word has length 41 [2025-03-09 02:29:30,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:30,416 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 341 transitions. [2025-03-09 02:29:30,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:30,416 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 341 transitions. [2025-03-09 02:29:30,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:29:30,417 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:30,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:30,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 02:29:30,417 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:30,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:30,417 INFO L85 PathProgramCache]: Analyzing trace with hash 345053116, now seen corresponding path program 1 times [2025-03-09 02:29:30,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:30,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579036825] [2025-03-09 02:29:30,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:30,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:30,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:30,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:30,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:30,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:30,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:30,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:30,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579036825] [2025-03-09 02:29:30,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579036825] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:30,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:30,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:30,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570174716] [2025-03-09 02:29:30,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:30,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:30,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:30,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:30,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:30,460 INFO L87 Difference]: Start difference. First operand 254 states and 341 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:30,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:30,586 INFO L93 Difference]: Finished difference Result 311 states and 400 transitions. [2025-03-09 02:29:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:30,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2025-03-09 02:29:30,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:30,587 INFO L225 Difference]: With dead ends: 311 [2025-03-09 02:29:30,588 INFO L226 Difference]: Without dead ends: 310 [2025-03-09 02:29:30,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:30,588 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 54 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:30,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 205 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:30,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-03-09 02:29:30,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 262. [2025-03-09 02:29:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 210 states have (on average 1.561904761904762) internal successors, (328), 247 states have internal predecessors, (328), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:30,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 352 transitions. [2025-03-09 02:29:30,597 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 352 transitions. Word has length 41 [2025-03-09 02:29:30,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:30,597 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 352 transitions. [2025-03-09 02:29:30,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:30,597 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 352 transitions. [2025-03-09 02:29:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:29:30,598 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:30,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:30,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 02:29:30,598 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:30,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:30,598 INFO L85 PathProgramCache]: Analyzing trace with hash 396585587, now seen corresponding path program 1 times [2025-03-09 02:29:30,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:30,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432129334] [2025-03-09 02:29:30,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:30,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:30,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:30,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:30,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:30,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:30,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:30,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432129334] [2025-03-09 02:29:30,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432129334] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:30,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:30,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:29:30,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018545367] [2025-03-09 02:29:30,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:30,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:30,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:30,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:30,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:29:30,701 INFO L87 Difference]: Start difference. First operand 262 states and 352 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:31,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:31,034 INFO L93 Difference]: Finished difference Result 356 states and 503 transitions. [2025-03-09 02:29:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:31,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2025-03-09 02:29:31,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:31,036 INFO L225 Difference]: With dead ends: 356 [2025-03-09 02:29:31,036 INFO L226 Difference]: Without dead ends: 354 [2025-03-09 02:29:31,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:29:31,036 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 490 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:31,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 110 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:31,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2025-03-09 02:29:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 268. [2025-03-09 02:29:31,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 216 states have (on average 1.5509259259259258) internal successors, (335), 253 states have internal predecessors, (335), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 359 transitions. [2025-03-09 02:29:31,044 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 359 transitions. Word has length 41 [2025-03-09 02:29:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:31,044 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 359 transitions. [2025-03-09 02:29:31,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:31,044 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 359 transitions. [2025-03-09 02:29:31,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:29:31,045 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:31,045 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:31,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-09 02:29:31,045 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:31,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:31,045 INFO L85 PathProgramCache]: Analyzing trace with hash 2005646731, now seen corresponding path program 1 times [2025-03-09 02:29:31,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:31,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798210056] [2025-03-09 02:29:31,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:31,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:31,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:29:31,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:29:31,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:31,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375236591] [2025-03-09 02:29:31,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:31,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:31,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:31,062 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:29:31,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-09 02:29:31,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:29:31,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:29:31,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:31,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:31,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-09 02:29:31,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:31,454 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:36,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:36,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798210056] [2025-03-09 02:29:36,347 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:36,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375236591] [2025-03-09 02:29:36,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375236591] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:36,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:36,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:29:36,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705850093] [2025-03-09 02:29:36,347 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:36,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:29:36,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:36,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:29:36,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:29:36,348 INFO L87 Difference]: Start difference. First operand 268 states and 359 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:38,030 INFO L93 Difference]: Finished difference Result 425 states and 573 transitions. [2025-03-09 02:29:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-09 02:29:38,031 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2025-03-09 02:29:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:38,032 INFO L225 Difference]: With dead ends: 425 [2025-03-09 02:29:38,032 INFO L226 Difference]: Without dead ends: 322 [2025-03-09 02:29:38,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2025-03-09 02:29:38,033 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 410 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:38,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 292 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-09 02:29:38,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2025-03-09 02:29:38,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 318. [2025-03-09 02:29:38,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 266 states have (on average 1.4586466165413534) internal successors, (388), 303 states have internal predecessors, (388), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:38,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 412 transitions. [2025-03-09 02:29:38,043 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 412 transitions. Word has length 42 [2025-03-09 02:29:38,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:38,043 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 412 transitions. [2025-03-09 02:29:38,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:38,043 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 412 transitions. [2025-03-09 02:29:38,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:29:38,044 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:38,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:38,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:38,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-09 02:29:38,245 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:38,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:38,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2106712011, now seen corresponding path program 1 times [2025-03-09 02:29:38,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:38,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390362013] [2025-03-09 02:29:38,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:38,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:38,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:29:38,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:29:38,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:38,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:38,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:38,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390362013] [2025-03-09 02:29:38,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390362013] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:38,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:38,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:38,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033930234] [2025-03-09 02:29:38,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:38,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:38,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:38,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:38,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:38,291 INFO L87 Difference]: Start difference. First operand 318 states and 412 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:38,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:38,710 INFO L93 Difference]: Finished difference Result 349 states and 446 transitions. [2025-03-09 02:29:38,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:38,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2025-03-09 02:29:38,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:38,715 INFO L225 Difference]: With dead ends: 349 [2025-03-09 02:29:38,715 INFO L226 Difference]: Without dead ends: 348 [2025-03-09 02:29:38,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:38,716 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 36 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:38,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 219 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:29:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2025-03-09 02:29:38,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 320. [2025-03-09 02:29:38,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 268 states have (on average 1.455223880597015) internal successors, (390), 305 states have internal predecessors, (390), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:38,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 414 transitions. [2025-03-09 02:29:38,724 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 414 transitions. Word has length 42 [2025-03-09 02:29:38,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:38,724 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 414 transitions. [2025-03-09 02:29:38,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:38,724 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 414 transitions. [2025-03-09 02:29:38,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:29:38,725 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:38,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:38,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-09 02:29:38,725 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:38,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:38,725 INFO L85 PathProgramCache]: Analyzing trace with hash -590748660, now seen corresponding path program 1 times [2025-03-09 02:29:38,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:38,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148262237] [2025-03-09 02:29:38,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:38,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:38,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:29:38,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:29:38,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:38,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:38,787 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:38,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:38,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148262237] [2025-03-09 02:29:38,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148262237] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:38,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:38,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:29:38,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848253773] [2025-03-09 02:29:38,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:38,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:38,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:38,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:38,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:29:38,789 INFO L87 Difference]: Start difference. First operand 320 states and 414 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:38,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:38,980 INFO L93 Difference]: Finished difference Result 327 states and 421 transitions. [2025-03-09 02:29:38,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:38,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2025-03-09 02:29:38,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:38,982 INFO L225 Difference]: With dead ends: 327 [2025-03-09 02:29:38,982 INFO L226 Difference]: Without dead ends: 325 [2025-03-09 02:29:38,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:29:38,983 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 381 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:38,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 88 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:38,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2025-03-09 02:29:38,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2025-03-09 02:29:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 268 states have (on average 1.4440298507462686) internal successors, (387), 305 states have internal predecessors, (387), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 411 transitions. [2025-03-09 02:29:38,992 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 411 transitions. Word has length 42 [2025-03-09 02:29:38,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:38,992 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 411 transitions. [2025-03-09 02:29:38,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:38,992 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 411 transitions. [2025-03-09 02:29:38,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-09 02:29:38,992 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:38,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:38,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-09 02:29:38,993 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:38,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 883562967, now seen corresponding path program 1 times [2025-03-09 02:29:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:38,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113021888] [2025-03-09 02:29:38,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:38,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:38,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:29:39,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:29:39,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:39,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:39,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1502451383] [2025-03-09 02:29:39,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:39,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:39,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:39,004 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) [2025-03-09 02:29:39,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-09 02:29:39,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:29:39,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:29:39,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:39,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:39,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:29:39,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:39,140 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:39,140 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:39,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:39,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113021888] [2025-03-09 02:29:39,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:39,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502451383] [2025-03-09 02:29:39,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502451383] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:39,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:39,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:29:39,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418811396] [2025-03-09 02:29:39,215 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:39,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:29:39,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:39,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:29:39,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:29:39,215 INFO L87 Difference]: Start difference. First operand 320 states and 411 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:39,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:39,574 INFO L93 Difference]: Finished difference Result 381 states and 499 transitions. [2025-03-09 02:29:39,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:29:39,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2025-03-09 02:29:39,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:39,575 INFO L225 Difference]: With dead ends: 381 [2025-03-09 02:29:39,575 INFO L226 Difference]: Without dead ends: 373 [2025-03-09 02:29:39,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:29:39,576 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 299 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:39,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 247 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:39,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2025-03-09 02:29:39,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 347. [2025-03-09 02:29:39,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 293 states have (on average 1.447098976109215) internal successors, (424), 330 states have internal predecessors, (424), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:29:39,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 452 transitions. [2025-03-09 02:29:39,586 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 452 transitions. Word has length 43 [2025-03-09 02:29:39,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:39,586 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 452 transitions. [2025-03-09 02:29:39,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:39,586 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 452 transitions. [2025-03-09 02:29:39,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-09 02:29:39,587 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:39,587 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:39,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-09 02:29:39,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:39,791 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:39,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:39,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1013805431, now seen corresponding path program 1 times [2025-03-09 02:29:39,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:39,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363759473] [2025-03-09 02:29:39,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:39,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:39,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:29:39,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:29:39,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:39,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:39,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181543107] [2025-03-09 02:29:39,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:39,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:39,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:39,803 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) [2025-03-09 02:29:39,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-09 02:29:39,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:29:39,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:29:39,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:39,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:39,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-09 02:29:39,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:40,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:40,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:40,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363759473] [2025-03-09 02:29:40,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:40,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181543107] [2025-03-09 02:29:40,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181543107] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:40,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:40,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-09 02:29:40,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871590396] [2025-03-09 02:29:40,971 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:40,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 02:29:40,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:40,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 02:29:40,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:29:40,972 INFO L87 Difference]: Start difference. First operand 347 states and 452 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:41,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:41,566 INFO L93 Difference]: Finished difference Result 395 states and 512 transitions. [2025-03-09 02:29:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:29:41,567 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2025-03-09 02:29:41,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:41,568 INFO L225 Difference]: With dead ends: 395 [2025-03-09 02:29:41,568 INFO L226 Difference]: Without dead ends: 394 [2025-03-09 02:29:41,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2025-03-09 02:29:41,569 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 331 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:41,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 260 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:29:41,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2025-03-09 02:29:41,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 355. [2025-03-09 02:29:41,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 301 states have (on average 1.4318936877076411) internal successors, (431), 338 states have internal predecessors, (431), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:29:41,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 459 transitions. [2025-03-09 02:29:41,580 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 459 transitions. Word has length 44 [2025-03-09 02:29:41,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:41,580 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 459 transitions. [2025-03-09 02:29:41,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:41,580 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 459 transitions. [2025-03-09 02:29:41,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-09 02:29:41,580 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:41,580 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1] [2025-03-09 02:29:41,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-09 02:29:41,786 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,SelfDestructingSolverStorable20 [2025-03-09 02:29:41,786 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:41,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:41,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1620648265, now seen corresponding path program 1 times [2025-03-09 02:29:41,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:41,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487139780] [2025-03-09 02:29:41,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:41,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:41,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:29:41,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:29:41,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:41,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:41,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810436107] [2025-03-09 02:29:41,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:41,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:41,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:41,810 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) [2025-03-09 02:29:41,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-09 02:29:41,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:29:41,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:29:41,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:41,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:41,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-09 02:29:41,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:44,783 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:44,784 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:45,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:45,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487139780] [2025-03-09 02:29:45,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:45,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810436107] [2025-03-09 02:29:45,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810436107] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:45,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:45,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-09 02:29:45,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044928787] [2025-03-09 02:29:45,196 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:45,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 02:29:45,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:45,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 02:29:45,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=213, Unknown=1, NotChecked=0, Total=272 [2025-03-09 02:29:45,197 INFO L87 Difference]: Start difference. First operand 355 states and 459 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:50,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:29:51,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:51,247 INFO L93 Difference]: Finished difference Result 418 states and 548 transitions. [2025-03-09 02:29:51,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-09 02:29:51,249 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2025-03-09 02:29:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:51,252 INFO L225 Difference]: With dead ends: 418 [2025-03-09 02:29:51,252 INFO L226 Difference]: Without dead ends: 409 [2025-03-09 02:29:51,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=132, Invalid=419, Unknown=1, NotChecked=0, Total=552 [2025-03-09 02:29:51,254 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 229 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:51,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 307 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1046 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2025-03-09 02:29:51,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2025-03-09 02:29:51,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 389. [2025-03-09 02:29:51,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 334 states have (on average 1.4281437125748504) internal successors, (477), 371 states have internal predecessors, (477), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:51,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 507 transitions. [2025-03-09 02:29:51,268 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 507 transitions. Word has length 44 [2025-03-09 02:29:51,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:51,269 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 507 transitions. [2025-03-09 02:29:51,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 507 transitions. [2025-03-09 02:29:51,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-09 02:29:51,269 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:51,269 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1] [2025-03-09 02:29:51,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:51,469 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 [2025-03-09 02:29:51,470 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:51,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:51,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1299511275, now seen corresponding path program 1 times [2025-03-09 02:29:51,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:51,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475153156] [2025-03-09 02:29:51,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:51,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:51,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:29:51,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:29:51,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:51,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:51,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510205571] [2025-03-09 02:29:51,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:51,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:51,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:51,495 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) [2025-03-09 02:29:51,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-09 02:29:51,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:29:51,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:29:51,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:51,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:51,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 02:29:51,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:51,674 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:51,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:51,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475153156] [2025-03-09 02:29:51,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510205571] [2025-03-09 02:29:51,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510205571] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:51,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:51,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:29:51,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418863474] [2025-03-09 02:29:51,921 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:51,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:29:51,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:51,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:29:51,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:29:51,922 INFO L87 Difference]: Start difference. First operand 389 states and 507 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:52,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:52,264 INFO L93 Difference]: Finished difference Result 410 states and 533 transitions. [2025-03-09 02:29:52,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:29:52,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2025-03-09 02:29:52,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:52,266 INFO L225 Difference]: With dead ends: 410 [2025-03-09 02:29:52,266 INFO L226 Difference]: Without dead ends: 407 [2025-03-09 02:29:52,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:29:52,266 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 286 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:52,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 245 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:52,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2025-03-09 02:29:52,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 366. [2025-03-09 02:29:52,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 312 states have (on average 1.4070512820512822) internal successors, (439), 349 states have internal predecessors, (439), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:29:52,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 467 transitions. [2025-03-09 02:29:52,280 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 467 transitions. Word has length 45 [2025-03-09 02:29:52,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:52,281 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 467 transitions. [2025-03-09 02:29:52,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:52,281 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 467 transitions. [2025-03-09 02:29:52,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-09 02:29:52,281 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:52,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:52,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:52,481 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 [2025-03-09 02:29:52,481 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:52,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:52,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1782677679, now seen corresponding path program 1 times [2025-03-09 02:29:52,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:52,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299997873] [2025-03-09 02:29:52,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:52,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:52,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:29:52,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:29:52,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:52,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:52,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127750082] [2025-03-09 02:29:52,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:52,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:52,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:52,498 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) [2025-03-09 02:29:52,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-09 02:29:52,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:29:52,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:29:52,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:52,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:52,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:29:52,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:52,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:52,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:52,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299997873] [2025-03-09 02:29:52,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:52,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127750082] [2025-03-09 02:29:52,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127750082] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:52,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:52,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:29:52,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976061332] [2025-03-09 02:29:52,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:52,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:52,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:52,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:52,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:29:52,643 INFO L87 Difference]: Start difference. First operand 366 states and 467 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:52,907 INFO L93 Difference]: Finished difference Result 456 states and 601 transitions. [2025-03-09 02:29:52,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:52,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2025-03-09 02:29:52,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:52,909 INFO L225 Difference]: With dead ends: 456 [2025-03-09 02:29:52,909 INFO L226 Difference]: Without dead ends: 448 [2025-03-09 02:29:52,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:29:52,909 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 219 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:52,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 107 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2025-03-09 02:29:52,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 397. [2025-03-09 02:29:52,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 342 states have (on average 1.4210526315789473) internal successors, (486), 379 states have internal predecessors, (486), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:52,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 516 transitions. [2025-03-09 02:29:52,922 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 516 transitions. Word has length 45 [2025-03-09 02:29:52,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:52,922 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 516 transitions. [2025-03-09 02:29:52,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 516 transitions. [2025-03-09 02:29:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-09 02:29:52,923 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:52,923 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-03-09 02:29:52,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:53,123 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,SelfDestructingSolverStorable23 [2025-03-09 02:29:53,123 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:53,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:53,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1575123659, now seen corresponding path program 1 times [2025-03-09 02:29:53,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:53,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426427620] [2025-03-09 02:29:53,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:53,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:53,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:29:53,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:29:53,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:53,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:53,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876234804] [2025-03-09 02:29:53,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:53,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:53,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:53,139 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) [2025-03-09 02:29:53,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-09 02:29:53,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:29:53,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:29:53,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:53,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:53,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:29:53,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:53,295 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:53,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:53,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426427620] [2025-03-09 02:29:53,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:53,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876234804] [2025-03-09 02:29:53,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876234804] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:53,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:53,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 02:29:53,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456957644] [2025-03-09 02:29:53,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:53,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:29:53,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:53,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:29:53,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:29:53,296 INFO L87 Difference]: Start difference. First operand 397 states and 516 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:53,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:53,543 INFO L93 Difference]: Finished difference Result 403 states and 520 transitions. [2025-03-09 02:29:53,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:29:53,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2025-03-09 02:29:53,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:53,544 INFO L225 Difference]: With dead ends: 403 [2025-03-09 02:29:53,544 INFO L226 Difference]: Without dead ends: 401 [2025-03-09 02:29:53,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:29:53,545 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:53,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 261 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:53,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2025-03-09 02:29:53,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 397. [2025-03-09 02:29:53,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 342 states have (on average 1.4152046783625731) internal successors, (484), 379 states have internal predecessors, (484), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:53,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 514 transitions. [2025-03-09 02:29:53,557 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 514 transitions. Word has length 46 [2025-03-09 02:29:53,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:53,557 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 514 transitions. [2025-03-09 02:29:53,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:53,557 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 514 transitions. [2025-03-09 02:29:53,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-09 02:29:53,557 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:53,557 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:53,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:53,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:53,758 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:53,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:53,758 INFO L85 PathProgramCache]: Analyzing trace with hash -571566776, now seen corresponding path program 1 times [2025-03-09 02:29:53,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:53,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112063778] [2025-03-09 02:29:53,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:53,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:53,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:29:53,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:29:53,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:53,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:53,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213881607] [2025-03-09 02:29:53,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:53,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:53,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:53,776 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) [2025-03-09 02:29:53,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-09 02:29:53,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:29:53,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:29:53,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:53,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:53,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:29:53,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:53,913 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:53,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:53,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112063778] [2025-03-09 02:29:53,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:53,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213881607] [2025-03-09 02:29:53,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213881607] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:53,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:53,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:29:53,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202504690] [2025-03-09 02:29:53,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:53,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:53,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:53,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:53,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:29:53,915 INFO L87 Difference]: Start difference. First operand 397 states and 514 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:54,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:54,154 INFO L93 Difference]: Finished difference Result 422 states and 545 transitions. [2025-03-09 02:29:54,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:54,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2025-03-09 02:29:54,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:54,155 INFO L225 Difference]: With dead ends: 422 [2025-03-09 02:29:54,155 INFO L226 Difference]: Without dead ends: 421 [2025-03-09 02:29:54,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:29:54,156 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 394 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:54,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 92 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:54,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2025-03-09 02:29:54,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 397. [2025-03-09 02:29:54,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 342 states have (on average 1.409356725146199) internal successors, (482), 379 states have internal predecessors, (482), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 512 transitions. [2025-03-09 02:29:54,168 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 512 transitions. Word has length 46 [2025-03-09 02:29:54,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:54,168 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 512 transitions. [2025-03-09 02:29:54,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:54,169 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 512 transitions. [2025-03-09 02:29:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-09 02:29:54,169 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:54,169 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-03-09 02:29:54,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:54,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:54,373 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:54,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:54,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1584193229, now seen corresponding path program 1 times [2025-03-09 02:29:54,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:54,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205856812] [2025-03-09 02:29:54,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:54,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:54,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:29:54,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:29:54,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:54,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:54,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156586289] [2025-03-09 02:29:54,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:54,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:54,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:54,390 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) [2025-03-09 02:29:54,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-09 02:29:54,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:29:54,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:29:54,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:54,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:54,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-09 02:29:54,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:54,719 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:54,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:54,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205856812] [2025-03-09 02:29:54,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:54,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156586289] [2025-03-09 02:29:54,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156586289] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:54,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:54,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-03-09 02:29:54,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778944880] [2025-03-09 02:29:54,956 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:54,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:29:54,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:54,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:29:54,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:29:54,958 INFO L87 Difference]: Start difference. First operand 397 states and 512 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:29:55,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:55,346 INFO L93 Difference]: Finished difference Result 675 states and 872 transitions. [2025-03-09 02:29:55,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 02:29:55,347 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2025-03-09 02:29:55,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:55,348 INFO L225 Difference]: With dead ends: 675 [2025-03-09 02:29:55,348 INFO L226 Difference]: Without dead ends: 393 [2025-03-09 02:29:55,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2025-03-09 02:29:55,348 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 150 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:55,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 251 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:55,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2025-03-09 02:29:55,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2025-03-09 02:29:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 336 states have (on average 1.4077380952380953) internal successors, (473), 373 states have internal predecessors, (473), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 503 transitions. [2025-03-09 02:29:55,362 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 503 transitions. Word has length 47 [2025-03-09 02:29:55,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:55,362 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 503 transitions. [2025-03-09 02:29:55,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:29:55,362 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 503 transitions. [2025-03-09 02:29:55,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-09 02:29:55,363 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:55,363 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-03-09 02:29:55,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-09 02:29:55,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:55,567 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:55,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:55,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1005149779, now seen corresponding path program 1 times [2025-03-09 02:29:55,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:55,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818925292] [2025-03-09 02:29:55,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:55,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:55,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:29:55,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:29:55,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:55,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:55,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691886171] [2025-03-09 02:29:55,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:55,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:55,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:55,584 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) [2025-03-09 02:29:55,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-09 02:29:55,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:29:55,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:29:55,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:55,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:55,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:29:55,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:55,757 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:59,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:59,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818925292] [2025-03-09 02:29:59,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:59,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691886171] [2025-03-09 02:29:59,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691886171] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:59,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:59,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:29:59,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768000254] [2025-03-09 02:29:59,892 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:59,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:29:59,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:59,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:29:59,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=80, Unknown=1, NotChecked=0, Total=110 [2025-03-09 02:29:59,892 INFO L87 Difference]: Start difference. First operand 391 states and 503 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:30:00,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:00,125 INFO L93 Difference]: Finished difference Result 426 states and 545 transitions. [2025-03-09 02:30:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:30:00,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2025-03-09 02:30:00,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:00,127 INFO L225 Difference]: With dead ends: 426 [2025-03-09 02:30:00,127 INFO L226 Difference]: Without dead ends: 424 [2025-03-09 02:30:00,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=54, Invalid=127, Unknown=1, NotChecked=0, Total=182 [2025-03-09 02:30:00,128 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:00,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 253 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:30:00,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2025-03-09 02:30:00,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 414. [2025-03-09 02:30:00,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 358 states have (on average 1.399441340782123) internal successors, (501), 395 states have internal predecessors, (501), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-09 02:30:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 533 transitions. [2025-03-09 02:30:00,143 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 533 transitions. Word has length 47 [2025-03-09 02:30:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:00,143 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 533 transitions. [2025-03-09 02:30:00,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:30:00,143 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 533 transitions. [2025-03-09 02:30:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-09 02:30:00,144 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:00,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:30:00,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-09 02:30:00,344 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,SelfDestructingSolverStorable27 [2025-03-09 02:30:00,344 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:00,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:00,345 INFO L85 PathProgramCache]: Analyzing trace with hash -538700851, now seen corresponding path program 1 times [2025-03-09 02:30:00,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:00,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668713209] [2025-03-09 02:30:00,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:00,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:00,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:30:00,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:30:00,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:00,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:00,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:30:00,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:00,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668713209] [2025-03-09 02:30:00,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668713209] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:30:00,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:30:00,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:30:00,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330468872] [2025-03-09 02:30:00,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:30:00,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:30:00,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:00,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:30:00,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:30:00,391 INFO L87 Difference]: Start difference. First operand 414 states and 533 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:30:00,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:00,521 INFO L93 Difference]: Finished difference Result 438 states and 553 transitions. [2025-03-09 02:30:00,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:30:00,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2025-03-09 02:30:00,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:00,522 INFO L225 Difference]: With dead ends: 438 [2025-03-09 02:30:00,522 INFO L226 Difference]: Without dead ends: 437 [2025-03-09 02:30:00,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:30:00,523 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 32 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:00,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 188 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:30:00,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2025-03-09 02:30:00,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 425. [2025-03-09 02:30:00,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 369 states have (on average 1.4010840108401084) internal successors, (517), 406 states have internal predecessors, (517), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-09 02:30:00,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 549 transitions. [2025-03-09 02:30:00,539 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 549 transitions. Word has length 47 [2025-03-09 02:30:00,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:00,539 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 549 transitions. [2025-03-09 02:30:00,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:30:00,539 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 549 transitions. [2025-03-09 02:30:00,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-09 02:30:00,540 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:00,540 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-03-09 02:30:00,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-09 02:30:00,540 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:00,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:00,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1094872133, now seen corresponding path program 1 times [2025-03-09 02:30:00,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:00,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896119438] [2025-03-09 02:30:00,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:00,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:00,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 02:30:00,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 02:30:00,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:00,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:30:00,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583540405] [2025-03-09 02:30:00,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:00,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:00,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:00,555 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) [2025-03-09 02:30:00,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-09 02:30:00,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 02:30:00,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 02:30:00,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:00,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:00,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-09 02:30:00,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:00,816 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:30:00,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:01,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:01,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896119438] [2025-03-09 02:30:01,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:30:01,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583540405] [2025-03-09 02:30:01,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583540405] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:30:01,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:30:01,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:30:01,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323628971] [2025-03-09 02:30:01,101 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:01,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:30:01,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:01,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:30:01,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:30:01,101 INFO L87 Difference]: Start difference. First operand 425 states and 549 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:30:01,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:01,490 INFO L93 Difference]: Finished difference Result 443 states and 571 transitions. [2025-03-09 02:30:01,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:30:01,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2025-03-09 02:30:01,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:01,492 INFO L225 Difference]: With dead ends: 443 [2025-03-09 02:30:01,492 INFO L226 Difference]: Without dead ends: 442 [2025-03-09 02:30:01,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2025-03-09 02:30:01,493 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 262 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:01,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 259 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:30:01,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2025-03-09 02:30:01,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 427. [2025-03-09 02:30:01,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 371 states have (on average 1.398921832884097) internal successors, (519), 408 states have internal predecessors, (519), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-09 02:30:01,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 551 transitions. [2025-03-09 02:30:01,507 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 551 transitions. Word has length 48 [2025-03-09 02:30:01,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:01,507 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 551 transitions. [2025-03-09 02:30:01,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:30:01,508 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 551 transitions. [2025-03-09 02:30:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-09 02:30:01,508 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:01,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:30:01,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-09 02:30:01,711 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 [2025-03-09 02:30:01,711 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:01,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:01,711 INFO L85 PathProgramCache]: Analyzing trace with hash 480142822, now seen corresponding path program 1 times [2025-03-09 02:30:01,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:01,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107834006] [2025-03-09 02:30:01,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:01,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 02:30:01,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 02:30:01,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:01,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:30:01,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:01,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107834006] [2025-03-09 02:30:01,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107834006] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:30:01,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:30:01,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:30:01,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676514621] [2025-03-09 02:30:01,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:30:01,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:30:01,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:01,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:30:01,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:30:01,775 INFO L87 Difference]: Start difference. First operand 427 states and 551 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:30:01,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:01,921 INFO L93 Difference]: Finished difference Result 440 states and 553 transitions. [2025-03-09 02:30:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:30:01,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2025-03-09 02:30:01,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:01,922 INFO L225 Difference]: With dead ends: 440 [2025-03-09 02:30:01,922 INFO L226 Difference]: Without dead ends: 439 [2025-03-09 02:30:01,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:30:01,923 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 30 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:01,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 194 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:30:01,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2025-03-09 02:30:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2025-03-09 02:30:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 372 states have (on average 1.3951612903225807) internal successors, (519), 409 states have internal predecessors, (519), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-09 02:30:01,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 551 transitions. [2025-03-09 02:30:01,936 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 551 transitions. Word has length 48 [2025-03-09 02:30:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:01,936 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 551 transitions. [2025-03-09 02:30:01,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:30:01,936 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 551 transitions. [2025-03-09 02:30:01,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-09 02:30:01,936 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:01,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:30:01,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-09 02:30:01,937 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:01,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:01,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1999525660, now seen corresponding path program 1 times [2025-03-09 02:30:01,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:01,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340530769] [2025-03-09 02:30:01,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:01,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-09 02:30:01,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-09 02:30:01,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:01,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:30:01,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288854552] [2025-03-09 02:30:01,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:01,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:01,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:01,949 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) [2025-03-09 02:30:01,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-09 02:30:01,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-09 02:30:01,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-09 02:30:01,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:01,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:01,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:30:01,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:30:02,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:30:02,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:02,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340530769] [2025-03-09 02:30:02,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:30:02,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288854552] [2025-03-09 02:30:02,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288854552] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:30:02,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:30:02,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2025-03-09 02:30:02,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191318360] [2025-03-09 02:30:02,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:02,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-09 02:30:02,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:02,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-09 02:30:02,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:30:02,256 INFO L87 Difference]: Start difference. First operand 428 states and 551 transitions. Second operand has 15 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-09 02:30:02,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:02,573 INFO L93 Difference]: Finished difference Result 522 states and 708 transitions. [2025-03-09 02:30:02,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:30:02,574 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 49 [2025-03-09 02:30:02,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:02,575 INFO L225 Difference]: With dead ends: 522 [2025-03-09 02:30:02,575 INFO L226 Difference]: Without dead ends: 512 [2025-03-09 02:30:02,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2025-03-09 02:30:02,576 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 302 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:02,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 96 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:30:02,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2025-03-09 02:30:02,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 407. [2025-03-09 02:30:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 362 states have (on average 1.3453038674033149) internal successors, (487), 389 states have internal predecessors, (487), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:30:02,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 517 transitions. [2025-03-09 02:30:02,591 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 517 transitions. Word has length 49 [2025-03-09 02:30:02,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:02,592 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 517 transitions. [2025-03-09 02:30:02,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-09 02:30:02,592 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 517 transitions. [2025-03-09 02:30:02,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-09 02:30:02,592 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:02,592 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:30:02,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-09 02:30:02,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:02,792 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:02,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:02,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1855753380, now seen corresponding path program 1 times [2025-03-09 02:30:02,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:02,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77290222] [2025-03-09 02:30:02,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:02,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:02,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-09 02:30:02,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-09 02:30:02,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:02,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:30:02,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523710969] [2025-03-09 02:30:02,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:02,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:02,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:02,809 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) [2025-03-09 02:30:02,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-09 02:30:02,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-09 02:30:02,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-09 02:30:02,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:02,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:02,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-09 02:30:02,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:03,156 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:30:03,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:30:03,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77290222] [2025-03-09 02:30:03,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:30:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523710969] [2025-03-09 02:30:03,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523710969] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:30:03,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:30:03,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2025-03-09 02:30:03,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939055939] [2025-03-09 02:30:03,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:03,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 02:30:03,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:03,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 02:30:03,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2025-03-09 02:30:03,553 INFO L87 Difference]: Start difference. First operand 407 states and 517 transitions. Second operand has 19 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 16 states have internal predecessors, (69), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-09 02:30:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:05,147 INFO L93 Difference]: Finished difference Result 456 states and 594 transitions. [2025-03-09 02:30:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:30:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 16 states have internal predecessors, (69), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) Word has length 50 [2025-03-09 02:30:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:05,149 INFO L225 Difference]: With dead ends: 456 [2025-03-09 02:30:05,149 INFO L226 Difference]: Without dead ends: 436 [2025-03-09 02:30:05,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2025-03-09 02:30:05,150 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 384 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:05,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 177 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-09 02:30:05,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2025-03-09 02:30:05,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 366. [2025-03-09 02:30:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 333 states have (on average 1.2942942942942943) internal successors, (431), 350 states have internal predecessors, (431), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-09 02:30:05,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 457 transitions. [2025-03-09 02:30:05,164 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 457 transitions. Word has length 50 [2025-03-09 02:30:05,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:05,164 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 457 transitions. [2025-03-09 02:30:05,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 16 states have internal predecessors, (69), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-09 02:30:05,165 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 457 transitions. [2025-03-09 02:30:05,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-09 02:30:05,165 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:05,165 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:30:05,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-09 02:30:05,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:05,369 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:05,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:05,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1693779994, now seen corresponding path program 1 times [2025-03-09 02:30:05,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:05,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572801114] [2025-03-09 02:30:05,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:05,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:05,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-09 02:30:05,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-09 02:30:05,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:05,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:30:05,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093024729] [2025-03-09 02:30:05,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:05,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:05,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:05,387 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) [2025-03-09 02:30:05,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-09 02:30:05,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-09 02:30:05,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-09 02:30:05,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:05,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:05,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 02:30:05,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:30:05,591 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:05,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:05,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572801114] [2025-03-09 02:30:05,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:30:05,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093024729] [2025-03-09 02:30:05,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093024729] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:30:05,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:30:05,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:30:05,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901206298] [2025-03-09 02:30:05,835 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:05,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:30:05,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:05,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:30:05,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:30:05,835 INFO L87 Difference]: Start difference. First operand 366 states and 457 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:30:06,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:06,010 INFO L93 Difference]: Finished difference Result 406 states and 516 transitions. [2025-03-09 02:30:06,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:30:06,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2025-03-09 02:30:06,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:06,011 INFO L225 Difference]: With dead ends: 406 [2025-03-09 02:30:06,011 INFO L226 Difference]: Without dead ends: 401 [2025-03-09 02:30:06,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:30:06,011 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 176 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:06,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 51 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:30:06,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2025-03-09 02:30:06,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 311. [2025-03-09 02:30:06,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 285 states have (on average 1.231578947368421) internal successors, (351), 297 states have internal predecessors, (351), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 02:30:06,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 373 transitions. [2025-03-09 02:30:06,025 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 373 transitions. Word has length 51 [2025-03-09 02:30:06,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:06,025 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 373 transitions. [2025-03-09 02:30:06,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:30:06,025 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 373 transitions. [2025-03-09 02:30:06,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-09 02:30:06,025 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:06,026 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:30:06,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-09 02:30:06,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:06,230 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:06,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:06,230 INFO L85 PathProgramCache]: Analyzing trace with hash 967572322, now seen corresponding path program 1 times [2025-03-09 02:30:06,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:06,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033276739] [2025-03-09 02:30:06,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:06,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:06,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-09 02:30:06,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-09 02:30:06,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:06,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:30:06,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960023239] [2025-03-09 02:30:06,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:06,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:06,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:06,245 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) [2025-03-09 02:30:06,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-09 02:30:06,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-09 02:30:06,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-09 02:30:06,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:06,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:06,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-09 02:30:06,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:30:06,790 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:11,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:11,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033276739] [2025-03-09 02:30:11,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:30:11,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960023239] [2025-03-09 02:30:11,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960023239] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:30:11,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:30:11,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:30:11,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055059735] [2025-03-09 02:30:11,076 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:11,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:30:11,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:11,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:30:11,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=191, Unknown=1, NotChecked=0, Total=240 [2025-03-09 02:30:11,077 INFO L87 Difference]: Start difference. First operand 311 states and 373 transitions. Second operand has 12 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:30:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:11,562 INFO L93 Difference]: Finished difference Result 353 states and 425 transitions. [2025-03-09 02:30:11,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 02:30:11,562 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2025-03-09 02:30:11,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:11,563 INFO L225 Difference]: With dead ends: 353 [2025-03-09 02:30:11,563 INFO L226 Difference]: Without dead ends: 352 [2025-03-09 02:30:11,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=94, Invalid=285, Unknown=1, NotChecked=0, Total=380 [2025-03-09 02:30:11,564 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 326 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:11,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 128 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:30:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2025-03-09 02:30:11,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 332. [2025-03-09 02:30:11,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 305 states have (on average 1.2360655737704918) internal successors, (377), 317 states have internal predecessors, (377), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:30:11,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 401 transitions. [2025-03-09 02:30:11,579 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 401 transitions. Word has length 52 [2025-03-09 02:30:11,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:11,579 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 401 transitions. [2025-03-09 02:30:11,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:30:11,579 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 401 transitions. [2025-03-09 02:30:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-09 02:30:11,579 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:11,579 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1] [2025-03-09 02:30:11,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-03-09 02:30:11,780 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,SelfDestructingSolverStorable34 [2025-03-09 02:30:11,781 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:11,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:11,781 INFO L85 PathProgramCache]: Analyzing trace with hash -70029032, now seen corresponding path program 1 times [2025-03-09 02:30:11,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:11,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407660172] [2025-03-09 02:30:11,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:11,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:11,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-09 02:30:11,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 02:30:11,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:11,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:30:11,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [122042940] [2025-03-09 02:30:11,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:11,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:11,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:11,792 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) [2025-03-09 02:30:11,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-09 02:30:11,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-09 02:30:11,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 02:30:11,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:11,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:11,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-09 02:30:11,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:30:12,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:20,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:20,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407660172] [2025-03-09 02:30:20,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:30:20,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122042940] [2025-03-09 02:30:20,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122042940] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:30:20,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:30:20,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-03-09 02:30:20,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792485023] [2025-03-09 02:30:20,976 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:20,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:30:20,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:20,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:30:20,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=201, Unknown=2, NotChecked=0, Total=272 [2025-03-09 02:30:20,976 INFO L87 Difference]: Start difference. First operand 332 states and 401 transitions. Second operand has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:30:21,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:21,420 INFO L93 Difference]: Finished difference Result 393 states and 480 transitions. [2025-03-09 02:30:21,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:30:21,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2025-03-09 02:30:21,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:21,421 INFO L225 Difference]: With dead ends: 393 [2025-03-09 02:30:21,421 INFO L226 Difference]: Without dead ends: 390 [2025-03-09 02:30:21,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=174, Invalid=376, Unknown=2, NotChecked=0, Total=552 [2025-03-09 02:30:21,422 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 172 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:21,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 143 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:30:21,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2025-03-09 02:30:21,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 374. [2025-03-09 02:30:21,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 345 states have (on average 1.23768115942029) internal successors, (427), 357 states have internal predecessors, (427), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:30:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 455 transitions. [2025-03-09 02:30:21,441 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 455 transitions. Word has length 53 [2025-03-09 02:30:21,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:21,441 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 455 transitions. [2025-03-09 02:30:21,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:30:21,441 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 455 transitions. [2025-03-09 02:30:21,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-09 02:30:21,441 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:21,441 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1] [2025-03-09 02:30:21,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-09 02:30:21,642 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,SelfDestructingSolverStorable35 [2025-03-09 02:30:21,642 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:21,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:21,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2124067360, now seen corresponding path program 1 times [2025-03-09 02:30:21,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:21,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560666957] [2025-03-09 02:30:21,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:21,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:21,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-09 02:30:21,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-09 02:30:21,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:21,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:30:21,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1498905075] [2025-03-09 02:30:21,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:21,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:21,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:21,657 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) [2025-03-09 02:30:21,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-09 02:30:21,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-09 02:30:21,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-09 02:30:21,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:21,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:21,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 02:30:21,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:30:22,075 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:26,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:26,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560666957] [2025-03-09 02:30:26,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:30:26,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498905075] [2025-03-09 02:30:26,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498905075] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:30:26,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:30:26,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:30:26,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148857305] [2025-03-09 02:30:26,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:26,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:30:26,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:26,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:30:26,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=214, Unknown=1, NotChecked=0, Total=272 [2025-03-09 02:30:26,470 INFO L87 Difference]: Start difference. First operand 374 states and 455 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:30:27,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:27,414 INFO L93 Difference]: Finished difference Result 383 states and 463 transitions. [2025-03-09 02:30:27,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:30:27,414 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2025-03-09 02:30:27,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:27,415 INFO L225 Difference]: With dead ends: 383 [2025-03-09 02:30:27,415 INFO L226 Difference]: Without dead ends: 382 [2025-03-09 02:30:27,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=117, Invalid=388, Unknown=1, NotChecked=0, Total=506 [2025-03-09 02:30:27,416 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 134 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:27,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 183 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-09 02:30:27,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-03-09 02:30:27,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 374. [2025-03-09 02:30:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 345 states have (on average 1.2347826086956522) internal successors, (426), 357 states have internal predecessors, (426), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:30:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 454 transitions. [2025-03-09 02:30:27,435 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 454 transitions. Word has length 54 [2025-03-09 02:30:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:27,435 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 454 transitions. [2025-03-09 02:30:27,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:30:27,435 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 454 transitions. [2025-03-09 02:30:27,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-09 02:30:27,435 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:27,435 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-03-09 02:30:27,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-09 02:30:27,636 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,SelfDestructingSolverStorable36 [2025-03-09 02:30:27,636 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:27,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:27,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1081866256, now seen corresponding path program 1 times [2025-03-09 02:30:27,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:27,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262038558] [2025-03-09 02:30:27,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:27,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:27,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-09 02:30:27,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-09 02:30:27,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:27,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:30:27,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496077955] [2025-03-09 02:30:27,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:27,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:27,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:27,648 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) [2025-03-09 02:30:27,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-09 02:30:27,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-09 02:30:27,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-09 02:30:27,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:27,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:27,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-03-09 02:30:27,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:29,423 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-09 02:30:29,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:41,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:41,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262038558] [2025-03-09 02:30:41,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:30:41,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496077955] [2025-03-09 02:30:41,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496077955] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:30:41,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:30:41,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2025-03-09 02:30:41,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38945953] [2025-03-09 02:30:41,242 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:41,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 02:30:41,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:41,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 02:30:41,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2025-03-09 02:30:41,243 INFO L87 Difference]: Start difference. First operand 374 states and 454 transitions. Second operand has 18 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2025-03-09 02:30:45,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:30:46,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:30:49,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]