./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound100.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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 11:14:38,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 11:14:38,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 11:14:38,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 11:14:38,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 11:14:38,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 11:14:38,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 11:14:38,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 11:14:38,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 11:14:38,768 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 11:14:38,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 11:14:38,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 11:14:38,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 11:14:38,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 11:14:38,770 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 11:14:38,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 11:14:38,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 11:14:38,770 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 11:14:38,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 11:14:38,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 11:14:38,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 11:14:38,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 11:14:38,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 11:14:38,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 11:14:38,771 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 11:14:38,771 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 11:14:38,771 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 11:14:38,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 11:14:38,771 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 11:14:38,771 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 11:14:38,771 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 11:14:38,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 11:14:38,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 11:14:38,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 11:14:38,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:14:38,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 11:14:38,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 11:14:38,772 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 11:14:38,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 11:14:38,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 11:14:38,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 11:14:38,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 11:14:38,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 11:14:38,773 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 11:14:38,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 11:14:38,773 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 -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2025-03-04 11:14:38,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 11:14:38,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 11:14:38,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 11:14:38,998 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 11:14:38,999 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 11:14:38,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound100.c [2025-03-04 11:14:40,108 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1e6e01c/0274d3f87ddd4b1d85765b95f09ba772/FLAG078164e04 [2025-03-04 11:14:40,327 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 11:14:40,335 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound100.c [2025-03-04 11:14:40,351 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1e6e01c/0274d3f87ddd4b1d85765b95f09ba772/FLAG078164e04 [2025-03-04 11:14:40,685 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1e6e01c/0274d3f87ddd4b1d85765b95f09ba772 [2025-03-04 11:14:40,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 11:14:40,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 11:14:40,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 11:14:40,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 11:14:40,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 11:14:40,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3327c355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40, skipping insertion in model container [2025-03-04 11:14:40,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 11:14:40,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:14:40,815 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 11:14:40,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:14:40,839 INFO L204 MainTranslator]: Completed translation [2025-03-04 11:14:40,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40 WrapperNode [2025-03-04 11:14:40,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 11:14:40,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 11:14:40,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 11:14:40,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 11:14:40,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,864 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2025-03-04 11:14:40,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 11:14:40,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 11:14:40,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 11:14:40,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 11:14:40,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,872 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,885 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]. [2025-03-04 11:14:40,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,890 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 11:14:40,896 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 11:14:40,896 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 11:14:40,897 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 11:14:40,897 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (1/1) ... [2025-03-04 11:14:40,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:14:40,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:40,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 11:14:40,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 11:14:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 11:14:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 11:14:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 11:14:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 11:14:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 11:14:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 11:14:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 11:14:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 11:14:40,988 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 11:14:40,990 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 11:14:41,189 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2025-03-04 11:14:41,189 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 11:14:41,201 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 11:14:41,203 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 11:14:41,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:14:41 BoogieIcfgContainer [2025-03-04 11:14:41,204 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 11:14:41,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 11:14:41,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 11:14:41,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 11:14:41,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 11:14:40" (1/3) ... [2025-03-04 11:14:41,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17080bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:14:41, skipping insertion in model container [2025-03-04 11:14:41,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:40" (2/3) ... [2025-03-04 11:14:41,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17080bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:14:41, skipping insertion in model container [2025-03-04 11:14:41,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:14:41" (3/3) ... [2025-03-04 11:14:41,212 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound100.c [2025-03-04 11:14:41,225 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 11:14:41,226 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_valuebound100.c that has 3 procedures, 63 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2025-03-04 11:14:41,268 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 11:14:41,275 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;@63b8c814, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 11:14:41,275 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-03-04 11:14:41,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 56 states have internal predecessors, (61), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:14:41,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-04 11:14:41,285 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:41,285 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:41,285 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:41,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:41,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1572191034, now seen corresponding path program 1 times [2025-03-04 11:14:41,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:41,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621243773] [2025-03-04 11:14:41,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:41,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:41,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:14:41,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:14:41,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:41,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:41,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 11:14:41,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:41,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621243773] [2025-03-04 11:14:41,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621243773] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:41,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093210556] [2025-03-04 11:14:41,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:41,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:41,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:41,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:41,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 11:14:41,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:14:41,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:14:41,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:41,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:41,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 11:14:41,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 11:14:41,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:41,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093210556] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:41,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:41,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 11:14:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123028729] [2025-03-04 11:14:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:41,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 11:14:41,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:41,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 11:14:41,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:14:41,467 INFO L87 Difference]: Start difference. First operand has 63 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 56 states have internal predecessors, (61), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:14:41,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:41,483 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2025-03-04 11:14:41,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 11:14:41,485 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2025-03-04 11:14:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:41,490 INFO L225 Difference]: With dead ends: 122 [2025-03-04 11:14:41,490 INFO L226 Difference]: Without dead ends: 56 [2025-03-04 11:14:41,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:14:41,496 INFO L435 NwaCegarLoop]: 65 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, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:41,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:41,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-03-04 11:14:41,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-03-04 11:14:41,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 50 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:14:41,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2025-03-04 11:14:41,534 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 14 [2025-03-04 11:14:41,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:41,535 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2025-03-04 11:14:41,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:14:41,536 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2025-03-04 11:14:41,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-04 11:14:41,536 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:41,537 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:41,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 11:14:41,741 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 [2025-03-04 11:14:41,741 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:41,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:41,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1376601050, now seen corresponding path program 1 times [2025-03-04 11:14:41,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:41,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078917982] [2025-03-04 11:14:41,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:41,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:41,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:14:41,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:14:41,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:41,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:41,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908546809] [2025-03-04 11:14:41,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:41,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:41,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:41,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:41,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 11:14:41,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:14:41,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:14:41,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:41,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:41,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:14:41,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:41,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:41,825 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:41,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:41,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078917982] [2025-03-04 11:14:41,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:41,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908546809] [2025-03-04 11:14:41,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908546809] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:41,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:41,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:14:41,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667623734] [2025-03-04 11:14:41,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:41,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:14:41,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:41,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:14:41,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:14:41,828 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:41,880 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2025-03-04 11:14:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:14:41,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-03-04 11:14:41,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:41,882 INFO L225 Difference]: With dead ends: 89 [2025-03-04 11:14:41,882 INFO L226 Difference]: Without dead ends: 83 [2025-03-04 11:14:41,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:14:41,882 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:41,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 74 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:41,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-04 11:14:41,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2025-03-04 11:14:41,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 68 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:14:41,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2025-03-04 11:14:41,889 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 14 [2025-03-04 11:14:41,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:41,889 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2025-03-04 11:14:41,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2025-03-04 11:14:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-04 11:14:41,890 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:41,890 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:41,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 11:14:42,094 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 [2025-03-04 11:14:42,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:42,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:42,095 INFO L85 PathProgramCache]: Analyzing trace with hash 63682360, now seen corresponding path program 1 times [2025-03-04 11:14:42,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:42,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480097318] [2025-03-04 11:14:42,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:42,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:42,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 11:14:42,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 11:14:42,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:42,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:42,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:42,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480097318] [2025-03-04 11:14:42,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480097318] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:42,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:42,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:42,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053302929] [2025-03-04 11:14:42,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:42,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:42,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:42,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:42,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:42,182 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:42,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:42,278 INFO L93 Difference]: Finished difference Result 117 states and 149 transitions. [2025-03-04 11:14:42,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:42,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2025-03-04 11:14:42,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:42,280 INFO L225 Difference]: With dead ends: 117 [2025-03-04 11:14:42,280 INFO L226 Difference]: Without dead ends: 110 [2025-03-04 11:14:42,280 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 [2025-03-04 11:14:42,281 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 33 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:42,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 71 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:42,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-03-04 11:14:42,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2025-03-04 11:14:42,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.5897435897435896) internal successors, (124), 97 states have internal predecessors, (124), 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) [2025-03-04 11:14:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 136 transitions. [2025-03-04 11:14:42,294 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 136 transitions. Word has length 16 [2025-03-04 11:14:42,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:42,294 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 136 transitions. [2025-03-04 11:14:42,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:42,294 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 136 transitions. [2025-03-04 11:14:42,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-04 11:14:42,295 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:42,295 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:42,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 11:14:42,295 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:42,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:42,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1974153171, now seen corresponding path program 1 times [2025-03-04 11:14:42,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:42,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7673116] [2025-03-04 11:14:42,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:42,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:42,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 11:14:42,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 11:14:42,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:42,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:42,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:42,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:42,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7673116] [2025-03-04 11:14:42,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7673116] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:42,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:42,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:42,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224729560] [2025-03-04 11:14:42,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:42,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:42,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:42,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:42,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:42,399 INFO L87 Difference]: Start difference. First operand 106 states and 136 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:42,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:42,471 INFO L93 Difference]: Finished difference Result 112 states and 137 transitions. [2025-03-04 11:14:42,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:42,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2025-03-04 11:14:42,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:42,473 INFO L225 Difference]: With dead ends: 112 [2025-03-04 11:14:42,473 INFO L226 Difference]: Without dead ends: 103 [2025-03-04 11:14:42,473 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 [2025-03-04 11:14:42,473 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 31 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:42,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:42,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-04 11:14:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2025-03-04 11:14:42,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5616438356164384) internal successors, (114), 92 states have internal predecessors, (114), 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) [2025-03-04 11:14:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2025-03-04 11:14:42,481 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 17 [2025-03-04 11:14:42,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:42,481 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2025-03-04 11:14:42,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2025-03-04 11:14:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 11:14:42,481 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:42,481 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:42,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 11:14:42,482 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:42,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1069206166, now seen corresponding path program 1 times [2025-03-04 11:14:42,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:42,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650122749] [2025-03-04 11:14:42,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:42,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:42,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 11:14:42,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 11:14:42,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:42,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:42,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:42,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650122749] [2025-03-04 11:14:42,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650122749] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:42,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211818595] [2025-03-04 11:14:42,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:42,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:42,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:42,618 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:42,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 11:14:42,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 11:14:42,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 11:14:42,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:42,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:42,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:42,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:42,736 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:42,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211818595] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:42,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:42,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-04 11:14:42,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163982041] [2025-03-04 11:14:42,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:42,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:42,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:42,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:42,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:42,737 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:42,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:42,822 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2025-03-04 11:14:42,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:42,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2025-03-04 11:14:42,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:42,823 INFO L225 Difference]: With dead ends: 104 [2025-03-04 11:14:42,823 INFO L226 Difference]: Without dead ends: 103 [2025-03-04 11:14:42,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:42,824 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 70 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:42,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 62 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:42,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-04 11:14:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2025-03-04 11:14:42,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.547945205479452) internal successors, (113), 92 states have internal predecessors, (113), 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) [2025-03-04 11:14:42,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2025-03-04 11:14:42,831 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 18 [2025-03-04 11:14:42,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:42,831 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2025-03-04 11:14:42,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:42,831 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2025-03-04 11:14:42,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-04 11:14:42,831 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:42,831 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:42,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:43,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:43,032 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:43,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:43,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1214347215, now seen corresponding path program 1 times [2025-03-04 11:14:43,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:43,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143096940] [2025-03-04 11:14:43,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:43,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:43,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 11:14:43,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 11:14:43,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:43,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:43,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1461700910] [2025-03-04 11:14:43,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:43,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:43,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:43,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:43,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 11:14:43,066 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 11:14:43,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 11:14:43,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:43,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:43,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:43,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:43,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:43,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:43,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143096940] [2025-03-04 11:14:43,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:43,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461700910] [2025-03-04 11:14:43,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461700910] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:43,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:43,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:43,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914089706] [2025-03-04 11:14:43,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:43,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:43,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:43,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:43,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:43,124 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:43,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:43,219 INFO L93 Difference]: Finished difference Result 102 states and 125 transitions. [2025-03-04 11:14:43,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:43,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-03-04 11:14:43,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:43,220 INFO L225 Difference]: With dead ends: 102 [2025-03-04 11:14:43,220 INFO L226 Difference]: Without dead ends: 101 [2025-03-04 11:14:43,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:14:43,221 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:43,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 67 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:43,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-03-04 11:14:43,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2025-03-04 11:14:43,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5342465753424657) internal successors, (112), 92 states have internal predecessors, (112), 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) [2025-03-04 11:14:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2025-03-04 11:14:43,228 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 19 [2025-03-04 11:14:43,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:43,228 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2025-03-04 11:14:43,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:43,228 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2025-03-04 11:14:43,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 11:14:43,228 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:43,228 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:43,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:43,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:43,429 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:43,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:43,430 INFO L85 PathProgramCache]: Analyzing trace with hash 166554239, now seen corresponding path program 1 times [2025-03-04 11:14:43,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:43,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767849175] [2025-03-04 11:14:43,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:43,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:43,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 11:14:43,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 11:14:43,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:43,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:43,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:43,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767849175] [2025-03-04 11:14:43,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767849175] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:43,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298651739] [2025-03-04 11:14:43,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:43,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:43,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:43,545 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:43,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 11:14:43,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 11:14:43,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 11:14:43,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:43,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:43,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:14:43,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:43,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:43,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298651739] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:43,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:43,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-03-04 11:14:43,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976712172] [2025-03-04 11:14:43,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:43,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:43,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:43,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:43,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:43,704 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:43,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:43,797 INFO L93 Difference]: Finished difference Result 152 states and 189 transitions. [2025-03-04 11:14:43,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:14:43,798 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2025-03-04 11:14:43,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:43,800 INFO L225 Difference]: With dead ends: 152 [2025-03-04 11:14:43,800 INFO L226 Difference]: Without dead ends: 150 [2025-03-04 11:14:43,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:43,800 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:43,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 236 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:43,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2025-03-04 11:14:43,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 140. [2025-03-04 11:14:43,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 110 states have (on average 1.5272727272727273) internal successors, (168), 129 states have internal predecessors, (168), 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) [2025-03-04 11:14:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2025-03-04 11:14:43,817 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 31 [2025-03-04 11:14:43,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:43,817 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2025-03-04 11:14:43,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:43,817 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2025-03-04 11:14:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 11:14:43,818 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:43,818 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:43,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:44,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:44,022 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:44,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:44,023 INFO L85 PathProgramCache]: Analyzing trace with hash 868214095, now seen corresponding path program 1 times [2025-03-04 11:14:44,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:44,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953620933] [2025-03-04 11:14:44,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:44,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:44,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 11:14:44,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 11:14:44,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:44,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:44,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:44,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:44,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953620933] [2025-03-04 11:14:44,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953620933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:44,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:44,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:44,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160855467] [2025-03-04 11:14:44,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:44,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:44,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:44,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:44,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:44,071 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:44,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:44,101 INFO L93 Difference]: Finished difference Result 140 states and 184 transitions. [2025-03-04 11:14:44,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:44,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2025-03-04 11:14:44,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:44,102 INFO L225 Difference]: With dead ends: 140 [2025-03-04 11:14:44,102 INFO L226 Difference]: Without dead ends: 138 [2025-03-04 11:14:44,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:14:44,103 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 56 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:44,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 72 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:44,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-03-04 11:14:44,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2025-03-04 11:14:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 110 states have (on average 1.481818181818182) internal successors, (163), 127 states have internal predecessors, (163), 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) [2025-03-04 11:14:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2025-03-04 11:14:44,117 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 32 [2025-03-04 11:14:44,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:44,117 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2025-03-04 11:14:44,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2025-03-04 11:14:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-04 11:14:44,118 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:44,118 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:44,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 11:14:44,118 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:44,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:44,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1144833186, now seen corresponding path program 1 times [2025-03-04 11:14:44,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:44,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641200600] [2025-03-04 11:14:44,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:44,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:44,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:14:44,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:14:44,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:44,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:44,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971752067] [2025-03-04 11:14:44,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:44,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:44,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:44,134 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:44,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 11:14:44,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:14:44,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:14:44,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:44,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:44,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:44,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:44,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:44,282 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:44,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:44,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641200600] [2025-03-04 11:14:44,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:44,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971752067] [2025-03-04 11:14:44,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971752067] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:44,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:44,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:14:44,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533624755] [2025-03-04 11:14:44,445 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:44,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:14:44,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:44,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:14:44,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:44,446 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:44,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:44,540 INFO L93 Difference]: Finished difference Result 145 states and 182 transitions. [2025-03-04 11:14:44,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:14:44,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2025-03-04 11:14:44,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:44,541 INFO L225 Difference]: With dead ends: 145 [2025-03-04 11:14:44,541 INFO L226 Difference]: Without dead ends: 138 [2025-03-04 11:14:44,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:44,541 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 50 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:44,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 51 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:44,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-03-04 11:14:44,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 134. [2025-03-04 11:14:44,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 123 states have internal predecessors, (151), 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) [2025-03-04 11:14:44,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 167 transitions. [2025-03-04 11:14:44,554 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 167 transitions. Word has length 33 [2025-03-04 11:14:44,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:44,554 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 167 transitions. [2025-03-04 11:14:44,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:44,555 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2025-03-04 11:14:44,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-04 11:14:44,556 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:44,557 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-04 11:14:44,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 11:14:44,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:44,757 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:44,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:44,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1130090413, now seen corresponding path program 1 times [2025-03-04 11:14:44,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:44,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552300229] [2025-03-04 11:14:44,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:44,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:44,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 11:14:44,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 11:14:44,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:44,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:44,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481748993] [2025-03-04 11:14:44,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:44,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:44,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:44,769 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:44,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 11:14:44,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 11:14:44,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 11:14:44,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:44,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:44,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:44,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:44,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:45,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:45,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552300229] [2025-03-04 11:14:45,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:45,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481748993] [2025-03-04 11:14:45,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481748993] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:45,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:45,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:14:45,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591281671] [2025-03-04 11:14:45,071 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:45,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:14:45,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:45,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:14:45,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:45,072 INFO L87 Difference]: Start difference. First operand 134 states and 167 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:45,180 INFO L93 Difference]: Finished difference Result 180 states and 223 transitions. [2025-03-04 11:14:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:14:45,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2025-03-04 11:14:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:45,182 INFO L225 Difference]: With dead ends: 180 [2025-03-04 11:14:45,182 INFO L226 Difference]: Without dead ends: 177 [2025-03-04 11:14:45,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:45,182 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 63 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:45,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 102 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-03-04 11:14:45,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 169. [2025-03-04 11:14:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 144 states have (on average 1.3472222222222223) internal successors, (194), 156 states have internal predecessors, (194), 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) [2025-03-04 11:14:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2025-03-04 11:14:45,194 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 34 [2025-03-04 11:14:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:45,194 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2025-03-04 11:14:45,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:45,195 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2025-03-04 11:14:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-04 11:14:45,195 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:45,195 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:45,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:45,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:45,396 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:45,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:45,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1162629343, now seen corresponding path program 1 times [2025-03-04 11:14:45,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:45,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300082327] [2025-03-04 11:14:45,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:45,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:45,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 11:14:45,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 11:14:45,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:45,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:45,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:45,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300082327] [2025-03-04 11:14:45,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300082327] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:45,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278026029] [2025-03-04 11:14:45,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:45,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:45,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:45,480 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:45,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 11:14:45,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 11:14:45,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 11:14:45,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:45,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:45,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:14:45,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:45,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:45,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278026029] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:45,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:45,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-04 11:14:45,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041341156] [2025-03-04 11:14:45,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:45,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:14:45,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:45,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:14:45,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:14:45,611 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:45,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:45,675 INFO L93 Difference]: Finished difference Result 169 states and 214 transitions. [2025-03-04 11:14:45,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:14:45,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2025-03-04 11:14:45,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:45,677 INFO L225 Difference]: With dead ends: 169 [2025-03-04 11:14:45,677 INFO L226 Difference]: Without dead ends: 167 [2025-03-04 11:14:45,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:14:45,677 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:45,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 51 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:45,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-03-04 11:14:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2025-03-04 11:14:45,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 141 states have (on average 1.3333333333333333) internal successors, (188), 151 states have internal predecessors, (188), 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) [2025-03-04 11:14:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 208 transitions. [2025-03-04 11:14:45,688 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 208 transitions. Word has length 35 [2025-03-04 11:14:45,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:45,688 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 208 transitions. [2025-03-04 11:14:45,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:45,688 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 208 transitions. [2025-03-04 11:14:45,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-04 11:14:45,688 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:45,689 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:45,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 11:14:45,889 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,SelfDestructingSolverStorable10 [2025-03-04 11:14:45,890 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:45,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1681771276, now seen corresponding path program 1 times [2025-03-04 11:14:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:45,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288656050] [2025-03-04 11:14:45,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:45,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:14:45,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:14:45,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:45,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:46,049 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:46,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:46,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288656050] [2025-03-04 11:14:46,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288656050] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:46,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938151252] [2025-03-04 11:14:46,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:46,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:46,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:46,052 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:46,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 11:14:46,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:14:46,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:14:46,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:46,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:46,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:14:46,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:46,152 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:46,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938151252] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:46,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:46,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2025-03-04 11:14:46,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294613673] [2025-03-04 11:14:46,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:46,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:14:46,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:46,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:14:46,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:14:46,250 INFO L87 Difference]: Start difference. First operand 164 states and 208 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 11:14:46,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:46,621 INFO L93 Difference]: Finished difference Result 176 states and 212 transitions. [2025-03-04 11:14:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 11:14:46,621 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 36 [2025-03-04 11:14:46,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:46,622 INFO L225 Difference]: With dead ends: 176 [2025-03-04 11:14:46,622 INFO L226 Difference]: Without dead ends: 161 [2025-03-04 11:14:46,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2025-03-04 11:14:46,624 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 102 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:46,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 120 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:46,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-03-04 11:14:46,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 155. [2025-03-04 11:14:46,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 133 states have (on average 1.263157894736842) internal successors, (168), 142 states have internal predecessors, (168), 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) [2025-03-04 11:14:46,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 188 transitions. [2025-03-04 11:14:46,633 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 188 transitions. Word has length 36 [2025-03-04 11:14:46,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:46,633 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 188 transitions. [2025-03-04 11:14:46,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 11:14:46,633 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 188 transitions. [2025-03-04 11:14:46,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-04 11:14:46,634 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:46,634 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:46,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:46,834 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 [2025-03-04 11:14:46,835 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:46,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:46,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1725126818, now seen corresponding path program 1 times [2025-03-04 11:14:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:46,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955651254] [2025-03-04 11:14:46,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:46,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:46,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:14:46,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:14:46,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:46,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:46,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:46,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955651254] [2025-03-04 11:14:46,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955651254] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:46,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971569657] [2025-03-04 11:14:46,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:46,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:46,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:46,978 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:46,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 11:14:47,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:14:47,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:14:47,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:47,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:14:47,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:47,099 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:47,099 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:47,277 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:47,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971569657] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:47,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:47,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2025-03-04 11:14:47,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908368735] [2025-03-04 11:14:47,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:47,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-04 11:14:47,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:47,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-04 11:14:47,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:14:47,279 INFO L87 Difference]: Start difference. First operand 155 states and 188 transitions. Second operand has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:14:47,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:47,544 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2025-03-04 11:14:47,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 11:14:47,544 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2025-03-04 11:14:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:47,545 INFO L225 Difference]: With dead ends: 156 [2025-03-04 11:14:47,545 INFO L226 Difference]: Without dead ends: 153 [2025-03-04 11:14:47,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2025-03-04 11:14:47,546 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 99 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:47,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:47,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-03-04 11:14:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 131. [2025-03-04 11:14:47,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 119 states have internal predecessors, (136), 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) [2025-03-04 11:14:47,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2025-03-04 11:14:47,552 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 37 [2025-03-04 11:14:47,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:47,552 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2025-03-04 11:14:47,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:14:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2025-03-04 11:14:47,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-04 11:14:47,553 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:47,553 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:47,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:47,757 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 [2025-03-04 11:14:47,757 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:47,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:47,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1939323799, now seen corresponding path program 1 times [2025-03-04 11:14:47,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:47,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420514911] [2025-03-04 11:14:47,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:47,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:47,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:14:47,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:14:47,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:47,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695760287] [2025-03-04 11:14:47,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:47,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:47,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:47,767 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:47,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 11:14:47,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:14:47,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:14:47,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:47,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:14:47,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:47,921 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:47,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:47,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:47,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420514911] [2025-03-04 11:14:47,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:47,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695760287] [2025-03-04 11:14:47,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695760287] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:47,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:47,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-04 11:14:47,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730453596] [2025-03-04 11:14:47,999 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:47,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:14:47,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:48,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:14:48,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:48,000 INFO L87 Difference]: Start difference. First operand 131 states and 154 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 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) [2025-03-04 11:14:48,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:48,187 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2025-03-04 11:14:48,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:14:48,188 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 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 [2025-03-04 11:14:48,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:48,189 INFO L225 Difference]: With dead ends: 209 [2025-03-04 11:14:48,189 INFO L226 Difference]: Without dead ends: 145 [2025-03-04 11:14:48,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:14:48,189 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 76 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:48,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 81 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:48,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2025-03-04 11:14:48,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2025-03-04 11:14:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 132 states have internal predecessors, (146), 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) [2025-03-04 11:14:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 166 transitions. [2025-03-04 11:14:48,196 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 166 transitions. Word has length 38 [2025-03-04 11:14:48,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:48,196 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 166 transitions. [2025-03-04 11:14:48,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 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) [2025-03-04 11:14:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 166 transitions. [2025-03-04 11:14:48,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-04 11:14:48,197 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:48,197 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:48,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 11:14:48,397 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,SelfDestructingSolverStorable13 [2025-03-04 11:14:48,397 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:48,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:48,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1706353547, now seen corresponding path program 2 times [2025-03-04 11:14:48,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:48,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786341507] [2025-03-04 11:14:48,398 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:48,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:48,402 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-03-04 11:14:48,409 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:14:48,412 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:48,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:48,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [133030890] [2025-03-04 11:14:48,413 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:48,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:48,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:48,415 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:48,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 11:14:48,434 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-03-04 11:14:48,445 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:14:48,445 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:48,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:48,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:14:48,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:14:48,537 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:14:48,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:48,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786341507] [2025-03-04 11:14:48,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:48,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133030890] [2025-03-04 11:14:48,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133030890] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:48,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:48,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-04 11:14:48,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450562299] [2025-03-04 11:14:48,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:48,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:14:48,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:48,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:14:48,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:48,694 INFO L87 Difference]: Start difference. First operand 145 states and 166 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:49,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:49,032 INFO L93 Difference]: Finished difference Result 295 states and 349 transitions. [2025-03-04 11:14:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:14:49,032 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2025-03-04 11:14:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:49,033 INFO L225 Difference]: With dead ends: 295 [2025-03-04 11:14:49,033 INFO L226 Difference]: Without dead ends: 284 [2025-03-04 11:14:49,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:14:49,034 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 168 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:49,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 170 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:49,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2025-03-04 11:14:49,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2025-03-04 11:14:49,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 253 states have (on average 1.1541501976284585) internal successors, (292), 257 states have internal predecessors, (292), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 11:14:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 328 transitions. [2025-03-04 11:14:49,053 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 328 transitions. Word has length 53 [2025-03-04 11:14:49,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:49,053 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 328 transitions. [2025-03-04 11:14:49,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:49,053 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 328 transitions. [2025-03-04 11:14:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-04 11:14:49,054 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:49,054 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:49,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:49,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-04 11:14:49,255 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:49,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:49,255 INFO L85 PathProgramCache]: Analyzing trace with hash 104948459, now seen corresponding path program 1 times [2025-03-04 11:14:49,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:49,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378729808] [2025-03-04 11:14:49,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:49,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:49,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-04 11:14:49,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 11:14:49,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:49,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:14:49,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378729808] [2025-03-04 11:14:49,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378729808] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375590116] [2025-03-04 11:14:49,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:49,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:49,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:49,320 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:49,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 11:14:49,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-04 11:14:49,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 11:14:49,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:49,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:14:49,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:14:49,402 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:49,463 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:14:49,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375590116] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:49,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:49,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-03-04 11:14:49,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991729864] [2025-03-04 11:14:49,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:49,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:49,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:49,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:49,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:49,465 INFO L87 Difference]: Start difference. First operand 278 states and 328 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-04 11:14:49,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:49,586 INFO L93 Difference]: Finished difference Result 768 states and 969 transitions. [2025-03-04 11:14:49,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:14:49,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 65 [2025-03-04 11:14:49,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:49,591 INFO L225 Difference]: With dead ends: 768 [2025-03-04 11:14:49,591 INFO L226 Difference]: Without dead ends: 766 [2025-03-04 11:14:49,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:49,592 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:49,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 91 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:49,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2025-03-04 11:14:49,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2025-03-04 11:14:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 708 states have (on average 1.1257062146892656) internal successors, (797), 711 states have internal predecessors, (797), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-04 11:14:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 901 transitions. [2025-03-04 11:14:49,650 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 901 transitions. Word has length 65 [2025-03-04 11:14:49,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:49,650 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 901 transitions. [2025-03-04 11:14:49,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-04 11:14:49,651 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 901 transitions. [2025-03-04 11:14:49,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-04 11:14:49,651 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:49,651 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:49,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:49,851 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,SelfDestructingSolverStorable15 [2025-03-04 11:14:49,852 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:49,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:49,852 INFO L85 PathProgramCache]: Analyzing trace with hash 752813580, now seen corresponding path program 1 times [2025-03-04 11:14:49,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:49,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776083036] [2025-03-04 11:14:49,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:49,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:49,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:14:49,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:14:49,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:49,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,955 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:14:49,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:49,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776083036] [2025-03-04 11:14:49,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776083036] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:49,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713765773] [2025-03-04 11:14:49,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:49,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:49,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:49,957 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:49,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 11:14:49,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:14:49,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:14:49,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:49,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:14:49,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:50,054 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:14:50,055 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 35 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:14:50,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713765773] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:50,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:50,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2025-03-04 11:14:50,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855317156] [2025-03-04 11:14:50,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:50,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:14:50,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:50,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:14:50,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:14:50,139 INFO L87 Difference]: Start difference. First operand 766 states and 901 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:50,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:50,204 INFO L93 Difference]: Finished difference Result 938 states and 1099 transitions. [2025-03-04 11:14:50,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:14:50,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 74 [2025-03-04 11:14:50,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:50,207 INFO L225 Difference]: With dead ends: 938 [2025-03-04 11:14:50,207 INFO L226 Difference]: Without dead ends: 523 [2025-03-04 11:14:50,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:14:50,208 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:50,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 115 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:50,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-03-04 11:14:50,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 522. [2025-03-04 11:14:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 481 states have (on average 1.1081081081081081) internal successors, (533), 484 states have internal predecessors, (533), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-04 11:14:50,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 603 transitions. [2025-03-04 11:14:50,233 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 603 transitions. Word has length 74 [2025-03-04 11:14:50,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:50,234 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 603 transitions. [2025-03-04 11:14:50,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 603 transitions. [2025-03-04 11:14:50,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-04 11:14:50,235 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:50,235 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:50,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-04 11:14:50,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:50,436 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:50,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:50,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2071302579, now seen corresponding path program 2 times [2025-03-04 11:14:50,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:50,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345106239] [2025-03-04 11:14:50,436 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:50,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:50,440 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 74 statements into 2 equivalence classes. [2025-03-04 11:14:50,445 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:14:50,446 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:50,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-04 11:14:50,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:50,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345106239] [2025-03-04 11:14:50,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345106239] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:50,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577671603] [2025-03-04 11:14:50,619 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:50,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:50,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:50,620 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:50,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 11:14:50,641 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 74 statements into 2 equivalence classes. [2025-03-04 11:14:50,654 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:14:50,654 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:50,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:50,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:14:50,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:14:50,790 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:14:50,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577671603] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:50,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:50,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2025-03-04 11:14:50,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307230631] [2025-03-04 11:14:50,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:50,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-04 11:14:50,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:50,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-04 11:14:50,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2025-03-04 11:14:50,951 INFO L87 Difference]: Start difference. First operand 522 states and 603 transitions. Second operand has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-04 11:14:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:52,087 INFO L93 Difference]: Finished difference Result 760 states and 869 transitions. [2025-03-04 11:14:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2025-03-04 11:14:52,088 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 74 [2025-03-04 11:14:52,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:52,091 INFO L225 Difference]: With dead ends: 760 [2025-03-04 11:14:52,091 INFO L226 Difference]: Without dead ends: 759 [2025-03-04 11:14:52,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1258, Invalid=4144, Unknown=0, NotChecked=0, Total=5402 [2025-03-04 11:14:52,094 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 286 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:52,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 169 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:14:52,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2025-03-04 11:14:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 521. [2025-03-04 11:14:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 481 states have (on average 1.0706860706860706) internal successors, (515), 483 states have internal predecessors, (515), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-04 11:14:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 585 transitions. [2025-03-04 11:14:52,123 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 585 transitions. Word has length 74 [2025-03-04 11:14:52,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:52,123 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 585 transitions. [2025-03-04 11:14:52,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-04 11:14:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 585 transitions. [2025-03-04 11:14:52,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 11:14:52,126 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:52,126 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:52,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:52,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-04 11:14:52,330 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:52,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:52,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1864426151, now seen corresponding path program 1 times [2025-03-04 11:14:52,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:52,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062308665] [2025-03-04 11:14:52,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:52,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:52,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 11:14:52,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 11:14:52,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:52,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:52,396 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:14:52,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:52,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062308665] [2025-03-04 11:14:52,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062308665] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:52,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496343822] [2025-03-04 11:14:52,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:52,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:52,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:52,401 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:52,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 11:14:52,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 11:14:52,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 11:14:52,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:52,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:52,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:14:52,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:14:52,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:14:52,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496343822] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:52,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:52,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 11:14:52,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798890647] [2025-03-04 11:14:52,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:52,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:14:52,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:52,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:14:52,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:52,627 INFO L87 Difference]: Start difference. First operand 521 states and 585 transitions. Second operand has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:52,767 INFO L93 Difference]: Finished difference Result 1248 states and 1417 transitions. [2025-03-04 11:14:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:14:52,767 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 87 [2025-03-04 11:14:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:52,771 INFO L225 Difference]: With dead ends: 1248 [2025-03-04 11:14:52,771 INFO L226 Difference]: Without dead ends: 1247 [2025-03-04 11:14:52,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:52,772 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 92 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:52,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 173 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:52,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2025-03-04 11:14:52,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1239. [2025-03-04 11:14:52,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1151 states have (on average 1.0747176368375326) internal successors, (1237), 1153 states have internal predecessors, (1237), 83 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-03-04 11:14:52,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1403 transitions. [2025-03-04 11:14:52,820 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1403 transitions. Word has length 87 [2025-03-04 11:14:52,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:52,821 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1403 transitions. [2025-03-04 11:14:52,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:52,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1403 transitions. [2025-03-04 11:14:52,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-04 11:14:52,822 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:52,822 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:52,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 11:14:53,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:53,022 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:53,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:53,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1736655700, now seen corresponding path program 1 times [2025-03-04 11:14:53,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:53,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77560239] [2025-03-04 11:14:53,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:53,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:53,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-04 11:14:53,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-04 11:14:53,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:53,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:53,088 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-04 11:14:53,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:53,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77560239] [2025-03-04 11:14:53,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77560239] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:53,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712307918] [2025-03-04 11:14:53,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:53,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:53,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:53,090 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:53,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 11:14:53,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-04 11:14:53,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-04 11:14:53,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:53,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:53,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:14:53,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 70 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 11:14:53,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-04 11:14:53,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712307918] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:53,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:53,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2025-03-04 11:14:53,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242570874] [2025-03-04 11:14:53,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:53,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:53,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:53,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:53,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:53,266 INFO L87 Difference]: Start difference. First operand 1239 states and 1403 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-04 11:14:53,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:53,427 INFO L93 Difference]: Finished difference Result 1303 states and 1470 transitions. [2025-03-04 11:14:53,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:14:53,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 91 [2025-03-04 11:14:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:53,432 INFO L225 Difference]: With dead ends: 1303 [2025-03-04 11:14:53,432 INFO L226 Difference]: Without dead ends: 1184 [2025-03-04 11:14:53,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 176 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:53,434 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 33 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:53,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 133 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:53,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2025-03-04 11:14:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1182. [2025-03-04 11:14:53,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1097 states have (on average 1.0665451230628988) internal successors, (1170), 1099 states have internal predecessors, (1170), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-04 11:14:53,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1330 transitions. [2025-03-04 11:14:53,506 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1330 transitions. Word has length 91 [2025-03-04 11:14:53,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:53,506 INFO L471 AbstractCegarLoop]: Abstraction has 1182 states and 1330 transitions. [2025-03-04 11:14:53,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-04 11:14:53,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1330 transitions. [2025-03-04 11:14:53,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-04 11:14:53,508 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:53,508 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:53,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:53,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:53,709 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:53,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:53,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1235061652, now seen corresponding path program 2 times [2025-03-04 11:14:53,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:53,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997682141] [2025-03-04 11:14:53,709 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:53,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:53,716 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 11:14:53,724 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 11:14:53,724 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:53,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:53,806 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 40 proven. 96 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:53,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:53,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997682141] [2025-03-04 11:14:53,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997682141] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:53,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991753940] [2025-03-04 11:14:53,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:53,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:53,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:53,809 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:53,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 11:14:53,830 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 11:14:53,846 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 11:14:53,846 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:53,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:53,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:14:53,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:53,966 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:53,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:54,081 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:54,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991753940] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:54,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:54,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2025-03-04 11:14:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610111630] [2025-03-04 11:14:54,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:54,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:14:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:54,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:14:54,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:14:54,082 INFO L87 Difference]: Start difference. First operand 1182 states and 1330 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:54,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:54,311 INFO L93 Difference]: Finished difference Result 2651 states and 2990 transitions. [2025-03-04 11:14:54,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:14:54,312 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 110 [2025-03-04 11:14:54,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:54,317 INFO L225 Difference]: With dead ends: 2651 [2025-03-04 11:14:54,317 INFO L226 Difference]: Without dead ends: 1914 [2025-03-04 11:14:54,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 211 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:14:54,319 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 28 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:54,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 239 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:54,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2025-03-04 11:14:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1394. [2025-03-04 11:14:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1295 states have (on average 1.061003861003861) internal successors, (1374), 1297 states have internal predecessors, (1374), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-04 11:14:54,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1562 transitions. [2025-03-04 11:14:54,380 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1562 transitions. Word has length 110 [2025-03-04 11:14:54,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:54,380 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1562 transitions. [2025-03-04 11:14:54,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1562 transitions. [2025-03-04 11:14:54,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 11:14:54,381 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:54,381 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:54,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 11:14:54,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:54,582 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:54,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:54,583 INFO L85 PathProgramCache]: Analyzing trace with hash -2109757835, now seen corresponding path program 3 times [2025-03-04 11:14:54,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:54,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517259497] [2025-03-04 11:14:54,583 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:54,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:54,587 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:14:54,602 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:14:54,602 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:14:54,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:54,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204514262] [2025-03-04 11:14:54,603 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:54,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:54,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:54,605 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:54,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 11:14:54,631 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:14:54,643 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 53 of 129 statements. [2025-03-04 11:14:54,643 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-04 11:14:54,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:54,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:14:54,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:54,673 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2025-03-04 11:14:54,673 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:54,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:54,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517259497] [2025-03-04 11:14:54,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:54,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204514262] [2025-03-04 11:14:54,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204514262] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:54,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:54,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-04 11:14:54,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597688966] [2025-03-04 11:14:54,794 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:54,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:14:54,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:54,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:14:54,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:14:54,795 INFO L87 Difference]: Start difference. First operand 1394 states and 1562 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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) [2025-03-04 11:14:54,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:54,881 INFO L93 Difference]: Finished difference Result 1396 states and 1562 transitions. [2025-03-04 11:14:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:14:54,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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 129 [2025-03-04 11:14:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:54,890 INFO L225 Difference]: With dead ends: 1396 [2025-03-04 11:14:54,890 INFO L226 Difference]: Without dead ends: 1395 [2025-03-04 11:14:54,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:54,891 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:54,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 73 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:54,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2025-03-04 11:14:54,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1394. [2025-03-04 11:14:54,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1295 states have (on average 1.0586872586872587) internal successors, (1371), 1297 states have internal predecessors, (1371), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-04 11:14:54,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1559 transitions. [2025-03-04 11:14:54,956 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1559 transitions. Word has length 129 [2025-03-04 11:14:54,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:54,956 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1559 transitions. [2025-03-04 11:14:54,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 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) [2025-03-04 11:14:54,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1559 transitions. [2025-03-04 11:14:54,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 11:14:54,958 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:54,958 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:54,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-04 11:14:55,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:55,159 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:55,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:55,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1349065746, now seen corresponding path program 3 times [2025-03-04 11:14:55,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:55,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953474893] [2025-03-04 11:14:55,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:55,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:55,164 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:14:55,179 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:14:55,179 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:14:55,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:55,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048820563] [2025-03-04 11:14:55,182 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:55,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:55,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:55,183 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:55,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 11:14:55,207 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:14:55,227 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 110 of 129 statements. [2025-03-04 11:14:55,227 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-04 11:14:55,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:55,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:14:55,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-04 11:14:55,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-04 11:14:55,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:55,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953474893] [2025-03-04 11:14:55,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:55,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048820563] [2025-03-04 11:14:55,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048820563] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:55,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:55,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2025-03-04 11:14:55,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975723981] [2025-03-04 11:14:55,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:55,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 11:14:55,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:55,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 11:14:55,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:14:55,582 INFO L87 Difference]: Start difference. First operand 1394 states and 1559 transitions. Second operand has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 14 states have internal predecessors, (146), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:14:56,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:56,251 INFO L93 Difference]: Finished difference Result 1721 states and 1919 transitions. [2025-03-04 11:14:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-04 11:14:56,251 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 14 states have internal predecessors, (146), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 129 [2025-03-04 11:14:56,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:56,256 INFO L225 Difference]: With dead ends: 1721 [2025-03-04 11:14:56,256 INFO L226 Difference]: Without dead ends: 1720 [2025-03-04 11:14:56,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=1188, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 11:14:56,257 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 266 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:56,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 289 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:14:56,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2025-03-04 11:14:56,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1584. [2025-03-04 11:14:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1473 states have (on average 1.054989816700611) internal successors, (1554), 1475 states have internal predecessors, (1554), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2025-03-04 11:14:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1766 transitions. [2025-03-04 11:14:56,328 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1766 transitions. Word has length 129 [2025-03-04 11:14:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:56,328 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 1766 transitions. [2025-03-04 11:14:56,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 14 states have internal predecessors, (146), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:14:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1766 transitions. [2025-03-04 11:14:56,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 11:14:56,329 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:56,329 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:56,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-04 11:14:56,530 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,SelfDestructingSolverStorable22 [2025-03-04 11:14:56,530 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:56,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:56,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1438366325, now seen corresponding path program 4 times [2025-03-04 11:14:56,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:56,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139814485] [2025-03-04 11:14:56,531 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:14:56,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:56,540 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 129 statements into 2 equivalence classes. [2025-03-04 11:14:56,559 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:14:56,559 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:14:56,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:56,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649593909] [2025-03-04 11:14:56,561 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:14:56,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:56,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:56,563 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:56,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 11:14:56,590 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 129 statements into 2 equivalence classes. [2025-03-04 11:14:56,612 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:14:56,612 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:14:56,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:56,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-04 11:14:56,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:57,853 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:14:57,910 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 210 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-03-04 11:14:57,910 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:58,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:58,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139814485] [2025-03-04 11:14:58,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:58,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649593909] [2025-03-04 11:14:58,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649593909] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:58,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:58,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2025-03-04 11:14:58,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820914450] [2025-03-04 11:14:58,139 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:58,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-04 11:14:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:58,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-04 11:14:58,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:14:58,140 INFO L87 Difference]: Start difference. First operand 1584 states and 1766 transitions. Second operand has 27 states, 25 states have (on average 4.04) internal successors, (101), 24 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:59,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:59,153 INFO L93 Difference]: Finished difference Result 1801 states and 2005 transitions. [2025-03-04 11:14:59,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-04 11:14:59,154 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 4.04) internal successors, (101), 24 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 129 [2025-03-04 11:14:59,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:59,158 INFO L225 Difference]: With dead ends: 1801 [2025-03-04 11:14:59,158 INFO L226 Difference]: Without dead ends: 1800 [2025-03-04 11:14:59,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2025-03-04 11:14:59,159 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 99 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:59,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 300 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-04 11:14:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2025-03-04 11:14:59,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1614. [2025-03-04 11:14:59,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1501 states have (on average 1.0539640239840107) internal successors, (1582), 1503 states have internal predecessors, (1582), 108 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2025-03-04 11:14:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 1798 transitions. [2025-03-04 11:14:59,218 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 1798 transitions. Word has length 129 [2025-03-04 11:14:59,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:59,218 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 1798 transitions. [2025-03-04 11:14:59,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 4.04) internal successors, (101), 24 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 1798 transitions. [2025-03-04 11:14:59,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-04 11:14:59,220 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:59,220 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:59,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:59,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-04 11:14:59,424 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:59,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:59,425 INFO L85 PathProgramCache]: Analyzing trace with hash 892015019, now seen corresponding path program 2 times [2025-03-04 11:14:59,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:59,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309043750] [2025-03-04 11:14:59,425 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:59,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:59,430 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-03-04 11:14:59,437 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 11:14:59,437 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:59,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:14:59,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:59,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309043750] [2025-03-04 11:14:59,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309043750] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:59,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055020454] [2025-03-04 11:14:59,545 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:59,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:59,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:59,547 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:59,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 11:14:59,571 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-03-04 11:14:59,589 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 11:14:59,590 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:59,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:59,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:14:59,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:14:59,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:14:59,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055020454] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:59,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:59,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2025-03-04 11:14:59,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737178992] [2025-03-04 11:14:59,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:59,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-04 11:14:59,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:59,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-04 11:14:59,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:14:59,808 INFO L87 Difference]: Start difference. First operand 1614 states and 1798 transitions. Second operand has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:00,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:00,035 INFO L93 Difference]: Finished difference Result 3055 states and 3526 transitions. [2025-03-04 11:15:00,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-04 11:15:00,036 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 141 [2025-03-04 11:15:00,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:00,044 INFO L225 Difference]: With dead ends: 3055 [2025-03-04 11:15:00,044 INFO L226 Difference]: Without dead ends: 3054 [2025-03-04 11:15:00,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:15:00,046 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:00,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 154 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:00,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2025-03-04 11:15:00,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 3054. [2025-03-04 11:15:00,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 2845 states have (on average 1.0622144112478031) internal successors, (3022), 2847 states have internal predecessors, (3022), 204 states have call successors, (204), 2 states have call predecessors, (204), 2 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2025-03-04 11:15:00,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3430 transitions. [2025-03-04 11:15:00,175 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3430 transitions. Word has length 141 [2025-03-04 11:15:00,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:00,176 INFO L471 AbstractCegarLoop]: Abstraction has 3054 states and 3430 transitions. [2025-03-04 11:15:00,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:00,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3430 transitions. [2025-03-04 11:15:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-03-04 11:15:00,178 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:00,178 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:00,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-04 11:15:00,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:00,379 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:00,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:00,379 INFO L85 PathProgramCache]: Analyzing trace with hash -869705810, now seen corresponding path program 5 times [2025-03-04 11:15:00,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:00,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382282227] [2025-03-04 11:15:00,379 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:00,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:00,385 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 148 statements into 8 equivalence classes. [2025-03-04 11:15:00,399 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 11:15:00,399 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-04 11:15:00,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 109 proven. 180 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:00,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:00,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382282227] [2025-03-04 11:15:00,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382282227] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:00,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449697549] [2025-03-04 11:15:00,502 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:00,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:00,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:00,504 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:00,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 11:15:00,528 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 148 statements into 8 equivalence classes. [2025-03-04 11:15:00,551 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 11:15:00,551 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-04 11:15:00,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:00,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:00,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:00,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:00,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449697549] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:00,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:00,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2025-03-04 11:15:00,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564413252] [2025-03-04 11:15:00,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:00,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 11:15:00,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:00,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 11:15:00,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:15:00,841 INFO L87 Difference]: Start difference. First operand 3054 states and 3430 transitions. Second operand has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:15:01,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:01,145 INFO L93 Difference]: Finished difference Result 6445 states and 7249 transitions. [2025-03-04 11:15:01,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:15:01,145 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 148 [2025-03-04 11:15:01,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:01,158 INFO L225 Difference]: With dead ends: 6445 [2025-03-04 11:15:01,158 INFO L226 Difference]: Without dead ends: 4856 [2025-03-04 11:15:01,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 285 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:15:01,164 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 29 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:01,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 254 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:01,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2025-03-04 11:15:01,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 3422. [2025-03-04 11:15:01,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3422 states, 3189 states have (on average 1.057071182188774) internal successors, (3371), 3191 states have internal predecessors, (3371), 228 states have call successors, (228), 2 states have call predecessors, (228), 2 states have return successors, (228), 228 states have call predecessors, (228), 228 states have call successors, (228) [2025-03-04 11:15:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 3827 transitions. [2025-03-04 11:15:01,329 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 3827 transitions. Word has length 148 [2025-03-04 11:15:01,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:01,329 INFO L471 AbstractCegarLoop]: Abstraction has 3422 states and 3827 transitions. [2025-03-04 11:15:01,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:15:01,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 3827 transitions. [2025-03-04 11:15:01,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-03-04 11:15:01,332 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:01,332 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:01,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:01,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:01,536 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:01,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:01,537 INFO L85 PathProgramCache]: Analyzing trace with hash 654654451, now seen corresponding path program 6 times [2025-03-04 11:15:01,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:01,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960383725] [2025-03-04 11:15:01,537 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:01,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:01,546 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 167 statements into 9 equivalence classes. [2025-03-04 11:15:01,558 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 167 of 167 statements. [2025-03-04 11:15:01,558 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-03-04 11:15:01,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:01,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [262590062] [2025-03-04 11:15:01,559 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:01,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:01,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:01,561 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:01,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 11:15:01,587 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 167 statements into 9 equivalence classes. [2025-03-04 11:15:01,613 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 148 of 167 statements. [2025-03-04 11:15:01,613 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-03-04 11:15:01,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:01,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 11:15:01,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2025-03-04 11:15:01,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:01,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:01,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960383725] [2025-03-04 11:15:01,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:01,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262590062] [2025-03-04 11:15:01,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262590062] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:01,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:01,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 11:15:01,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707884330] [2025-03-04 11:15:01,962 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:01,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:15:01,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:01,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:15:01,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:01,964 INFO L87 Difference]: Start difference. First operand 3422 states and 3827 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-04 11:15:02,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:02,232 INFO L93 Difference]: Finished difference Result 3877 states and 4334 transitions. [2025-03-04 11:15:02,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:15:02,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 167 [2025-03-04 11:15:02,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:02,242 INFO L225 Difference]: With dead ends: 3877 [2025-03-04 11:15:02,242 INFO L226 Difference]: Without dead ends: 3876 [2025-03-04 11:15:02,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:02,243 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:02,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 221 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:02,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3876 states. [2025-03-04 11:15:02,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3876 to 3467. [2025-03-04 11:15:02,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3467 states, 3231 states have (on average 1.0563293098112039) internal successors, (3413), 3233 states have internal predecessors, (3413), 231 states have call successors, (231), 2 states have call predecessors, (231), 2 states have return successors, (231), 231 states have call predecessors, (231), 231 states have call successors, (231) [2025-03-04 11:15:02,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 3875 transitions. [2025-03-04 11:15:02,388 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 3875 transitions. Word has length 167 [2025-03-04 11:15:02,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:02,388 INFO L471 AbstractCegarLoop]: Abstraction has 3467 states and 3875 transitions. [2025-03-04 11:15:02,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-04 11:15:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 3875 transitions. [2025-03-04 11:15:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-03-04 11:15:02,391 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:02,391 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:02,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-04 11:15:02,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-04 11:15:02,592 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:02,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:02,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1154485359, now seen corresponding path program 2 times [2025-03-04 11:15:02,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:02,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465509190] [2025-03-04 11:15:02,592 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:02,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:02,597 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 182 statements into 2 equivalence classes. [2025-03-04 11:15:02,604 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 182 of 182 statements. [2025-03-04 11:15:02,604 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:02,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:02,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:02,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465509190] [2025-03-04 11:15:02,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465509190] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:02,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537626524] [2025-03-04 11:15:02,748 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:02,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:02,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:02,750 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:02,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 11:15:02,777 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 182 statements into 2 equivalence classes. [2025-03-04 11:15:02,807 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 182 of 182 statements. [2025-03-04 11:15:02,807 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:02,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:02,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:15:02,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:02,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:03,180 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:03,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537626524] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:03,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:03,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-03-04 11:15:03,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034418162] [2025-03-04 11:15:03,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:03,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-04 11:15:03,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:03,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-04 11:15:03,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:15:03,182 INFO L87 Difference]: Start difference. First operand 3467 states and 3875 transitions. Second operand has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-04 11:15:03,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:03,577 INFO L93 Difference]: Finished difference Result 6626 states and 7435 transitions. [2025-03-04 11:15:03,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 11:15:03,578 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 182 [2025-03-04 11:15:03,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:03,592 INFO L225 Difference]: With dead ends: 6626 [2025-03-04 11:15:03,592 INFO L226 Difference]: Without dead ends: 6625 [2025-03-04 11:15:03,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:15:03,593 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 278 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:03,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 281 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:03,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2025-03-04 11:15:03,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 6607. [2025-03-04 11:15:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6607 states, 6161 states have (on average 1.05713358221068) internal successors, (6513), 6163 states have internal predecessors, (6513), 441 states have call successors, (441), 2 states have call predecessors, (441), 2 states have return successors, (441), 441 states have call predecessors, (441), 441 states have call successors, (441) [2025-03-04 11:15:03,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 7395 transitions. [2025-03-04 11:15:03,814 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 7395 transitions. Word has length 182 [2025-03-04 11:15:03,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:03,814 INFO L471 AbstractCegarLoop]: Abstraction has 6607 states and 7395 transitions. [2025-03-04 11:15:03,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-04 11:15:03,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 7395 transitions. [2025-03-04 11:15:03,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-03-04 11:15:03,817 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:03,817 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:03,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-04 11:15:04,021 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,SelfDestructingSolverStorable27 [2025-03-04 11:15:04,021 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:04,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:04,022 INFO L85 PathProgramCache]: Analyzing trace with hash 685435951, now seen corresponding path program 7 times [2025-03-04 11:15:04,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:04,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779406646] [2025-03-04 11:15:04,022 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:04,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:04,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-03-04 11:15:04,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:04,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:04,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:04,181 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 160 proven. 313 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-04 11:15:04,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:04,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779406646] [2025-03-04 11:15:04,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779406646] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:04,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868816456] [2025-03-04 11:15:04,182 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:04,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:04,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:04,184 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:04,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-04 11:15:04,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-03-04 11:15:04,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:04,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:04,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:04,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:04,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 288 proven. 185 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-04 11:15:04,464 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:04,648 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 160 proven. 313 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-04 11:15:04,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868816456] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:04,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:04,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-03-04 11:15:04,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187829215] [2025-03-04 11:15:04,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:04,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-04 11:15:04,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:04,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-04 11:15:04,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:15:04,649 INFO L87 Difference]: Start difference. First operand 6607 states and 7395 transitions. Second operand has 22 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:05,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:05,399 INFO L93 Difference]: Finished difference Result 18303 states and 20561 transitions. [2025-03-04 11:15:05,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 11:15:05,399 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 186 [2025-03-04 11:15:05,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:05,429 INFO L225 Difference]: With dead ends: 18303 [2025-03-04 11:15:05,429 INFO L226 Difference]: Without dead ends: 13432 [2025-03-04 11:15:05,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 358 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:15:05,437 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 44 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:05,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 278 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:05,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13432 states. [2025-03-04 11:15:05,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13432 to 7178. [2025-03-04 11:15:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7178 states, 6693 states have (on average 1.0522934409084117) internal successors, (7043), 6695 states have internal predecessors, (7043), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2025-03-04 11:15:05,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7178 states to 7178 states and 8003 transitions. [2025-03-04 11:15:05,804 INFO L78 Accepts]: Start accepts. Automaton has 7178 states and 8003 transitions. Word has length 186 [2025-03-04 11:15:05,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:05,805 INFO L471 AbstractCegarLoop]: Abstraction has 7178 states and 8003 transitions. [2025-03-04 11:15:05,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:05,805 INFO L276 IsEmpty]: Start isEmpty. Operand 7178 states and 8003 transitions. [2025-03-04 11:15:05,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-03-04 11:15:05,807 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:05,807 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:05,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:06,007 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,SelfDestructingSolverStorable28 [2025-03-04 11:15:06,007 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:06,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:06,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1131665812, now seen corresponding path program 8 times [2025-03-04 11:15:06,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:06,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519702738] [2025-03-04 11:15:06,008 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:06,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:06,012 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 186 statements into 2 equivalence classes. [2025-03-04 11:15:06,021 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:06,021 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:06,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:06,162 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 119 proven. 383 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:06,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:06,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519702738] [2025-03-04 11:15:06,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519702738] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:06,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975434984] [2025-03-04 11:15:06,163 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:06,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:06,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:06,166 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:06,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-04 11:15:06,191 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 186 statements into 2 equivalence classes. [2025-03-04 11:15:06,215 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:06,215 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:06,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:06,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:15:06,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:06,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:06,608 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:06,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975434984] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:06,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:06,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2025-03-04 11:15:06,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206627816] [2025-03-04 11:15:06,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:06,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 11:15:06,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:06,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 11:15:06,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:15:06,609 INFO L87 Difference]: Start difference. First operand 7178 states and 8003 transitions. Second operand has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:07,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:07,147 INFO L93 Difference]: Finished difference Result 8367 states and 9299 transitions. [2025-03-04 11:15:07,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:15:07,148 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 186 [2025-03-04 11:15:07,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:07,161 INFO L225 Difference]: With dead ends: 8367 [2025-03-04 11:15:07,161 INFO L226 Difference]: Without dead ends: 7174 [2025-03-04 11:15:07,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 357 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:15:07,164 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 29 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:07,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 368 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:15:07,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2025-03-04 11:15:07,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 7172. [2025-03-04 11:15:07,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7172 states, 6687 states have (on average 1.0494990279647076) internal successors, (7018), 6689 states have internal predecessors, (7018), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2025-03-04 11:15:07,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7172 states to 7172 states and 7978 transitions. [2025-03-04 11:15:07,454 INFO L78 Accepts]: Start accepts. Automaton has 7172 states and 7978 transitions. Word has length 186 [2025-03-04 11:15:07,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:07,454 INFO L471 AbstractCegarLoop]: Abstraction has 7172 states and 7978 transitions. [2025-03-04 11:15:07,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:07,454 INFO L276 IsEmpty]: Start isEmpty. Operand 7172 states and 7978 transitions. [2025-03-04 11:15:07,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-03-04 11:15:07,457 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:07,457 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:07,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:07,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:07,658 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:07,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:07,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1811990645, now seen corresponding path program 9 times [2025-03-04 11:15:07,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:07,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418765556] [2025-03-04 11:15:07,658 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:07,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:07,664 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 205 statements into 11 equivalence classes. [2025-03-04 11:15:07,684 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 205 of 205 statements. [2025-03-04 11:15:07,684 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-04 11:15:07,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:07,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728011578] [2025-03-04 11:15:07,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:07,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:07,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:07,686 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:07,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-04 11:15:07,709 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 205 statements into 11 equivalence classes. [2025-03-04 11:15:07,735 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 129 of 205 statements. [2025-03-04 11:15:07,735 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:15:07,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:07,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:15:07,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2025-03-04 11:15:07,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:08,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:08,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418765556] [2025-03-04 11:15:08,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:08,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728011578] [2025-03-04 11:15:08,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728011578] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:08,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:08,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 11:15:08,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139261937] [2025-03-04 11:15:08,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:08,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:15:08,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:08,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:15:08,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:15:08,113 INFO L87 Difference]: Start difference. First operand 7172 states and 7978 transitions. Second operand has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:15:08,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:08,758 INFO L93 Difference]: Finished difference Result 11488 states and 12804 transitions. [2025-03-04 11:15:08,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 11:15:08,758 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 205 [2025-03-04 11:15:08,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:08,772 INFO L225 Difference]: With dead ends: 11488 [2025-03-04 11:15:08,772 INFO L226 Difference]: Without dead ends: 7522 [2025-03-04 11:15:08,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:15:08,779 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 148 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:08,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 396 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:15:08,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2025-03-04 11:15:09,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 7253. [2025-03-04 11:15:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7253 states, 6763 states have (on average 1.0489427768741684) internal successors, (7094), 6765 states have internal predecessors, (7094), 485 states have call successors, (485), 2 states have call predecessors, (485), 2 states have return successors, (485), 485 states have call predecessors, (485), 485 states have call successors, (485) [2025-03-04 11:15:09,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 8064 transitions. [2025-03-04 11:15:09,149 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 8064 transitions. Word has length 205 [2025-03-04 11:15:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:09,150 INFO L471 AbstractCegarLoop]: Abstraction has 7253 states and 8064 transitions. [2025-03-04 11:15:09,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:15:09,150 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 8064 transitions. [2025-03-04 11:15:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2025-03-04 11:15:09,152 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:09,152 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:09,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:09,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:09,352 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:09,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:09,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1266844299, now seen corresponding path program 10 times [2025-03-04 11:15:09,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:09,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176407824] [2025-03-04 11:15:09,353 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:09,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:09,359 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 243 statements into 2 equivalence classes. [2025-03-04 11:15:09,377 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:09,377 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:09,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:09,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78754181] [2025-03-04 11:15:09,378 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:09,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:09,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:09,381 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:09,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-04 11:15:09,408 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 243 statements into 2 equivalence classes. [2025-03-04 11:15:09,449 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:09,449 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:09,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:09,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-04 11:15:09,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 48 proven. 919 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-03-04 11:15:10,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:11,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:11,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176407824] [2025-03-04 11:15:11,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:11,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78754181] [2025-03-04 11:15:11,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78754181] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:11,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:11,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2025-03-04 11:15:11,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087873698] [2025-03-04 11:15:11,109 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:11,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-04 11:15:11,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:11,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-04 11:15:11,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2025-03-04 11:15:11,111 INFO L87 Difference]: Start difference. First operand 7253 states and 8064 transitions. Second operand has 28 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 28 states have internal predecessors, (182), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-04 11:15:13,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:15:18,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:15:22,925 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] [2025-03-04 11:15:25,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:25,404 INFO L93 Difference]: Finished difference Result 7742 states and 8589 transitions. [2025-03-04 11:15:25,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-03-04 11:15:25,405 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 28 states have internal predecessors, (182), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 243 [2025-03-04 11:15:25,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:25,415 INFO L225 Difference]: With dead ends: 7742 [2025-03-04 11:15:25,416 INFO L226 Difference]: Without dead ends: 7576 [2025-03-04 11:15:25,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=384, Invalid=2266, Unknown=2, NotChecked=0, Total=2652 [2025-03-04 11:15:25,419 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 213 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 24 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:25,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 393 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1973 Invalid, 5 Unknown, 0 Unchecked, 12.1s Time] [2025-03-04 11:15:25,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2025-03-04 11:15:25,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7289. [2025-03-04 11:15:25,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7289 states, 6797 states have (on average 1.0485508312490806) internal successors, (7127), 6799 states have internal predecessors, (7127), 487 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 487 states have call predecessors, (487), 487 states have call successors, (487) [2025-03-04 11:15:25,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7289 states to 7289 states and 8101 transitions. [2025-03-04 11:15:25,728 INFO L78 Accepts]: Start accepts. Automaton has 7289 states and 8101 transitions. Word has length 243 [2025-03-04 11:15:25,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:25,729 INFO L471 AbstractCegarLoop]: Abstraction has 7289 states and 8101 transitions. [2025-03-04 11:15:25,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 28 states have internal predecessors, (182), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-04 11:15:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 7289 states and 8101 transitions. [2025-03-04 11:15:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2025-03-04 11:15:25,731 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:25,731 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:25,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-03-04 11:15:25,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:25,932 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:25,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:25,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2033077389, now seen corresponding path program 11 times [2025-03-04 11:15:25,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:25,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546185160] [2025-03-04 11:15:25,932 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:25,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:25,938 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 243 statements into 13 equivalence classes. [2025-03-04 11:15:25,950 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:25,950 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-04 11:15:25,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:25,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404323180] [2025-03-04 11:15:25,951 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:25,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:25,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:25,953 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:25,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-04 11:15:25,983 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 243 statements into 13 equivalence classes. [2025-03-04 11:15:26,028 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:26,029 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-04 11:15:26,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:26,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 62 conjuncts are in the unsatisfiable core [2025-03-04 11:15:26,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 288 proven. 649 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2025-03-04 11:15:27,234 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:27,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:27,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546185160] [2025-03-04 11:15:27,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:27,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404323180] [2025-03-04 11:15:27,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404323180] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:27,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:27,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2025-03-04 11:15:27,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567028861] [2025-03-04 11:15:27,432 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:27,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-03-04 11:15:27,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:27,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-03-04 11:15:27,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1304, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 11:15:27,433 INFO L87 Difference]: Start difference. First operand 7289 states and 8101 transitions. Second operand has 36 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 11:15:29,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:29,669 INFO L93 Difference]: Finished difference Result 14244 states and 15816 transitions. [2025-03-04 11:15:29,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-03-04 11:15:29,670 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 243 [2025-03-04 11:15:29,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:29,682 INFO L225 Difference]: With dead ends: 14244 [2025-03-04 11:15:29,682 INFO L226 Difference]: Without dead ends: 8985 [2025-03-04 11:15:29,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2152 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1101, Invalid=6209, Unknown=0, NotChecked=0, Total=7310 [2025-03-04 11:15:29,692 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 269 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:29,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 321 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-04 11:15:29,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8985 states. [2025-03-04 11:15:30,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8985 to 8911. [2025-03-04 11:15:30,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8311 states have (on average 1.0439176994344843) internal successors, (8676), 8313 states have internal predecessors, (8676), 595 states have call successors, (595), 2 states have call predecessors, (595), 2 states have return successors, (595), 595 states have call predecessors, (595), 595 states have call successors, (595) [2025-03-04 11:15:30,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 9866 transitions. [2025-03-04 11:15:30,058 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 9866 transitions. Word has length 243 [2025-03-04 11:15:30,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:30,059 INFO L471 AbstractCegarLoop]: Abstraction has 8911 states and 9866 transitions. [2025-03-04 11:15:30,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 11:15:30,059 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 9866 transitions. [2025-03-04 11:15:30,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2025-03-04 11:15:30,061 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:30,061 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:30,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:30,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-03-04 11:15:30,266 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:30,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1575290866, now seen corresponding path program 12 times [2025-03-04 11:15:30,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:30,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168824807] [2025-03-04 11:15:30,267 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:30,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:30,274 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 262 statements into 14 equivalence classes. [2025-03-04 11:15:30,293 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) and asserted 262 of 262 statements. [2025-03-04 11:15:30,294 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2025-03-04 11:15:30,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:30,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 306 proven. 868 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2025-03-04 11:15:30,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:30,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168824807] [2025-03-04 11:15:30,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168824807] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:30,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073262502] [2025-03-04 11:15:30,661 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:30,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:30,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:30,662 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:30,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-04 11:15:30,685 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 262 statements into 14 equivalence classes. [2025-03-04 11:15:30,748 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 224 of 262 statements. [2025-03-04 11:15:30,748 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-03-04 11:15:30,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:30,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-04 11:15:30,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 0 proven. 817 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2025-03-04 11:15:31,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:31,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073262502] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:31,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:15:31,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 29 [2025-03-04 11:15:31,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630169400] [2025-03-04 11:15:31,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:31,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-04 11:15:31,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:31,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-04 11:15:31,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2025-03-04 11:15:31,284 INFO L87 Difference]: Start difference. First operand 8911 states and 9866 transitions. Second operand has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 29 states have internal predecessors, (302), 21 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:33,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:33,539 INFO L93 Difference]: Finished difference Result 18274 states and 20299 transitions. [2025-03-04 11:15:33,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2025-03-04 11:15:33,540 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 29 states have internal predecessors, (302), 21 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 262 [2025-03-04 11:15:33,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:33,560 INFO L225 Difference]: With dead ends: 18274 [2025-03-04 11:15:33,561 INFO L226 Difference]: Without dead ends: 12701 [2025-03-04 11:15:33,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=740, Invalid=3682, Unknown=0, NotChecked=0, Total=4422 [2025-03-04 11:15:33,573 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 197 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 4164 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 4192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:33,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 608 Invalid, 4192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4164 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-04 11:15:33,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12701 states. [2025-03-04 11:15:33,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12701 to 10098. [2025-03-04 11:15:33,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10098 states, 9419 states have (on average 1.0440598789680433) internal successors, (9834), 9421 states have internal predecessors, (9834), 674 states have call successors, (674), 2 states have call predecessors, (674), 2 states have return successors, (674), 674 states have call predecessors, (674), 674 states have call successors, (674) [2025-03-04 11:15:33,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10098 states to 10098 states and 11182 transitions. [2025-03-04 11:15:33,995 INFO L78 Accepts]: Start accepts. Automaton has 10098 states and 11182 transitions. Word has length 262 [2025-03-04 11:15:33,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:33,995 INFO L471 AbstractCegarLoop]: Abstraction has 10098 states and 11182 transitions. [2025-03-04 11:15:33,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 29 states have internal predecessors, (302), 21 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:33,995 INFO L276 IsEmpty]: Start isEmpty. Operand 10098 states and 11182 transitions. [2025-03-04 11:15:33,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2025-03-04 11:15:33,997 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:33,998 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:34,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-04 11:15:34,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:34,198 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:34,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:34,198 INFO L85 PathProgramCache]: Analyzing trace with hash -191666068, now seen corresponding path program 13 times [2025-03-04 11:15:34,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:34,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115383913] [2025-03-04 11:15:34,199 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:34,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:34,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 262 statements into 1 equivalence classes. [2025-03-04 11:15:34,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 262 of 262 statements. [2025-03-04 11:15:34,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:34,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 258 proven. 850 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:34,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:34,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115383913] [2025-03-04 11:15:34,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115383913] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:34,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788182640] [2025-03-04 11:15:34,411 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:34,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:34,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:34,413 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:34,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-04 11:15:34,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 262 statements into 1 equivalence classes. [2025-03-04 11:15:34,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 262 of 262 statements. [2025-03-04 11:15:34,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:34,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:34,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:15:34,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:34,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:35,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:35,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788182640] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:35,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:35,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 24 [2025-03-04 11:15:35,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362362444] [2025-03-04 11:15:35,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:35,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-04 11:15:35,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:35,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-04 11:15:35,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:15:35,039 INFO L87 Difference]: Start difference. First operand 10098 states and 11182 transitions. Second operand has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2025-03-04 11:15:35,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:35,802 INFO L93 Difference]: Finished difference Result 10241 states and 11329 transitions. [2025-03-04 11:15:35,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 11:15:35,803 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) Word has length 262 [2025-03-04 11:15:35,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:35,815 INFO L225 Difference]: With dead ends: 10241 [2025-03-04 11:15:35,815 INFO L226 Difference]: Without dead ends: 8562 [2025-03-04 11:15:35,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 503 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:15:35,819 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 31 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:35,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 661 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:15:35,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2025-03-04 11:15:36,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 8560. [2025-03-04 11:15:36,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 7983 states have (on average 1.0409620443442316) internal successors, (8310), 7985 states have internal predecessors, (8310), 572 states have call successors, (572), 2 states have call predecessors, (572), 2 states have return successors, (572), 572 states have call predecessors, (572), 572 states have call successors, (572) [2025-03-04 11:15:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 9454 transitions. [2025-03-04 11:15:36,144 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 9454 transitions. Word has length 262 [2025-03-04 11:15:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:36,145 INFO L471 AbstractCegarLoop]: Abstraction has 8560 states and 9454 transitions. [2025-03-04 11:15:36,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2025-03-04 11:15:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 9454 transitions. [2025-03-04 11:15:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2025-03-04 11:15:36,147 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:36,147 INFO L218 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:36,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-03-04 11:15:36,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:36,348 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:36,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash 693944051, now seen corresponding path program 14 times [2025-03-04 11:15:36,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:36,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656292439] [2025-03-04 11:15:36,348 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:36,354 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 281 statements into 2 equivalence classes. [2025-03-04 11:15:36,361 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 281 of 281 statements. [2025-03-04 11:15:36,361 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:36,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:36,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 677 proven. 427 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2025-03-04 11:15:36,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656292439] [2025-03-04 11:15:36,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656292439] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122195785] [2025-03-04 11:15:36,484 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:36,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:36,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:36,486 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:36,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-04 11:15:36,535 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 281 statements into 2 equivalence classes. [2025-03-04 11:15:36,569 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 281 of 281 statements. [2025-03-04 11:15:36,569 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:36,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:36,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:36,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:36,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 956 proven. 308 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2025-03-04 11:15:36,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:36,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 638 proven. 466 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2025-03-04 11:15:36,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122195785] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:36,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:36,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2025-03-04 11:15:36,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648689686] [2025-03-04 11:15:36,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:36,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:15:36,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:36,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:15:36,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:15:36,930 INFO L87 Difference]: Start difference. First operand 8560 states and 9454 transitions. Second operand has 16 states, 16 states have (on average 14.1875) internal successors, (227), 16 states have internal predecessors, (227), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2025-03-04 11:15:37,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:37,367 INFO L93 Difference]: Finished difference Result 10159 states and 11204 transitions. [2025-03-04 11:15:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:15:37,367 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.1875) internal successors, (227), 16 states have internal predecessors, (227), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 281 [2025-03-04 11:15:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:37,380 INFO L225 Difference]: With dead ends: 10159 [2025-03-04 11:15:37,381 INFO L226 Difference]: Without dead ends: 8930 [2025-03-04 11:15:37,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 549 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2025-03-04 11:15:37,385 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 13 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:37,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 195 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8930 states. [2025-03-04 11:15:37,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8930 to 8524. [2025-03-04 11:15:37,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8524 states, 7949 states have (on average 1.0408856459932068) internal successors, (8274), 7951 states have internal predecessors, (8274), 570 states have call successors, (570), 2 states have call predecessors, (570), 2 states have return successors, (570), 570 states have call predecessors, (570), 570 states have call successors, (570) [2025-03-04 11:15:37,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8524 states to 8524 states and 9414 transitions. [2025-03-04 11:15:37,793 INFO L78 Accepts]: Start accepts. Automaton has 8524 states and 9414 transitions. Word has length 281 [2025-03-04 11:15:37,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:37,793 INFO L471 AbstractCegarLoop]: Abstraction has 8524 states and 9414 transitions. [2025-03-04 11:15:37,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.1875) internal successors, (227), 16 states have internal predecessors, (227), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2025-03-04 11:15:37,794 INFO L276 IsEmpty]: Start isEmpty. Operand 8524 states and 9414 transitions. [2025-03-04 11:15:37,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2025-03-04 11:15:37,796 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:37,796 INFO L218 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:37,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:37,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-04 11:15:37,997 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:37,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:37,998 INFO L85 PathProgramCache]: Analyzing trace with hash -908179851, now seen corresponding path program 15 times [2025-03-04 11:15:37,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:37,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108704823] [2025-03-04 11:15:37,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:37,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:38,004 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 281 statements into 15 equivalence classes. [2025-03-04 11:15:38,026 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 281 of 281 statements. [2025-03-04 11:15:38,026 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:38,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:38,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014533013] [2025-03-04 11:15:38,027 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:38,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:38,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:38,029 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:38,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-04 11:15:38,058 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 281 statements into 15 equivalence classes. [2025-03-04 11:15:38,087 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 167 of 281 statements. [2025-03-04 11:15:38,087 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-04 11:15:38,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:38,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:15:38,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:38,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 1006 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2025-03-04 11:15:38,390 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:38,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108704823] [2025-03-04 11:15:38,487 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014533013] [2025-03-04 11:15:38,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014533013] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:38,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:38,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 11:15:38,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947596538] [2025-03-04 11:15:38,487 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:38,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:15:38,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:38,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:15:38,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:15:38,488 INFO L87 Difference]: Start difference. First operand 8524 states and 9414 transitions. Second operand has 12 states, 11 states have (on average 11.636363636363637) internal successors, (128), 12 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:38,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:38,941 INFO L93 Difference]: Finished difference Result 9024 states and 9955 transitions. [2025-03-04 11:15:38,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 11:15:38,941 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.636363636363637) internal successors, (128), 12 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 281 [2025-03-04 11:15:38,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:38,952 INFO L225 Difference]: With dead ends: 9024 [2025-03-04 11:15:38,953 INFO L226 Difference]: Without dead ends: 9023 [2025-03-04 11:15:38,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:15:38,955 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 19 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:38,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 224 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:38,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9023 states. [2025-03-04 11:15:39,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9023 to 8530. [2025-03-04 11:15:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8530 states, 7955 states have (on average 1.0408548082966687) internal successors, (8280), 7957 states have internal predecessors, (8280), 570 states have call successors, (570), 2 states have call predecessors, (570), 2 states have return successors, (570), 570 states have call predecessors, (570), 570 states have call successors, (570) [2025-03-04 11:15:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8530 states to 8530 states and 9420 transitions. [2025-03-04 11:15:39,304 INFO L78 Accepts]: Start accepts. Automaton has 8530 states and 9420 transitions. Word has length 281 [2025-03-04 11:15:39,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:39,304 INFO L471 AbstractCegarLoop]: Abstraction has 8530 states and 9420 transitions. [2025-03-04 11:15:39,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.636363636363637) internal successors, (128), 12 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 8530 states and 9420 transitions. [2025-03-04 11:15:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2025-03-04 11:15:39,307 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:39,307 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:39,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:39,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-04 11:15:39,507 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:39,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:39,508 INFO L85 PathProgramCache]: Analyzing trace with hash 37490475, now seen corresponding path program 3 times [2025-03-04 11:15:39,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:39,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128447074] [2025-03-04 11:15:39,508 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:39,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:39,513 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 293 statements into 15 equivalence classes. [2025-03-04 11:15:39,532 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 293 of 293 statements. [2025-03-04 11:15:39,532 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:39,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:39,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-03-04 11:15:39,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:39,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128447074] [2025-03-04 11:15:39,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128447074] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:39,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142820043] [2025-03-04 11:15:39,778 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:39,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:39,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:39,780 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:39,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-04 11:15:39,805 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 293 statements into 15 equivalence classes. [2025-03-04 11:15:39,853 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 293 of 293 statements. [2025-03-04 11:15:39,853 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:39,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:39,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:15:39,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-03-04 11:15:40,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-03-04 11:15:40,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142820043] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:40,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:40,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2025-03-04 11:15:40,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513177984] [2025-03-04 11:15:40,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:40,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-03-04 11:15:40,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:40,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-03-04 11:15:40,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:15:40,412 INFO L87 Difference]: Start difference. First operand 8530 states and 9420 transitions. Second operand has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2025-03-04 11:15:41,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:41,269 INFO L93 Difference]: Finished difference Result 13331 states and 15164 transitions. [2025-03-04 11:15:41,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-04 11:15:41,270 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) Word has length 293 [2025-03-04 11:15:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:41,286 INFO L225 Difference]: With dead ends: 13331 [2025-03-04 11:15:41,286 INFO L226 Difference]: Without dead ends: 13330 [2025-03-04 11:15:41,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:15:41,291 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 23 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:41,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 267 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:41,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13330 states. [2025-03-04 11:15:41,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13330 to 13330. [2025-03-04 11:15:41,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 12435 states have (on average 1.050583031765179) internal successors, (13064), 12437 states have internal predecessors, (13064), 890 states have call successors, (890), 2 states have call predecessors, (890), 2 states have return successors, (890), 890 states have call predecessors, (890), 890 states have call successors, (890) [2025-03-04 11:15:41,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 14844 transitions. [2025-03-04 11:15:41,857 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 14844 transitions. Word has length 293 [2025-03-04 11:15:41,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:41,857 INFO L471 AbstractCegarLoop]: Abstraction has 13330 states and 14844 transitions. [2025-03-04 11:15:41,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2025-03-04 11:15:41,858 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 14844 transitions. [2025-03-04 11:15:41,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2025-03-04 11:15:41,860 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:41,860 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:41,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2025-03-04 11:15:42,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-04 11:15:42,061 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:42,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:42,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1474454963, now seen corresponding path program 16 times [2025-03-04 11:15:42,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:42,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857260019] [2025-03-04 11:15:42,061 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:42,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:42,069 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 300 statements into 2 equivalence classes. [2025-03-04 11:15:42,088 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:15:42,089 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:42,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:42,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765234854] [2025-03-04 11:15:42,092 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:42,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:42,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:42,094 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:42,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-04 11:15:42,120 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 300 statements into 2 equivalence classes. [2025-03-04 11:15:42,169 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:15:42,169 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:42,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:42,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 119 conjuncts are in the unsatisfiable core [2025-03-04 11:15:42,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:43,787 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:15:44,372 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-04 11:15:44,909 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-04 11:15:45,705 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2025-03-04 11:15:46,285 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2025-03-04 11:15:46,804 WARN L672 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2025-03-04 11:15:47,624 WARN L672 sPolynomialRelations]: Constructing 4096(two to the power of 12 dual juncts. [2025-03-04 11:15:48,413 WARN L672 sPolynomialRelations]: Constructing 8192(two to the power of 13 dual juncts. [2025-03-04 11:15:49,233 WARN L672 sPolynomialRelations]: Constructing 16384(two to the power of 14 dual juncts. [2025-03-04 11:15:49,589 WARN L672 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2025-03-04 11:15:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 108 proven. 1459 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2025-03-04 11:15:50,404 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:50,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:50,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857260019] [2025-03-04 11:15:50,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:50,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765234854] [2025-03-04 11:15:50,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765234854] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:50,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:50,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2025-03-04 11:15:50,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220297893] [2025-03-04 11:15:50,683 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:50,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2025-03-04 11:15:50,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:50,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2025-03-04 11:15:50,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=3629, Unknown=0, NotChecked=0, Total=4032 [2025-03-04 11:15:50,685 INFO L87 Difference]: Start difference. First operand 13330 states and 14844 transitions. Second operand has 60 states, 57 states have (on average 3.9298245614035086) internal successors, (224), 52 states have internal predecessors, (224), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:15:56,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:56,115 INFO L93 Difference]: Finished difference Result 14181 states and 15749 transitions. [2025-03-04 11:15:56,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-03-04 11:15:56,115 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 57 states have (on average 3.9298245614035086) internal successors, (224), 52 states have internal predecessors, (224), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 300 [2025-03-04 11:15:56,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:56,130 INFO L225 Difference]: With dead ends: 14181 [2025-03-04 11:15:56,130 INFO L226 Difference]: Without dead ends: 13756 [2025-03-04 11:15:56,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1841 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=691, Invalid=6449, Unknown=0, NotChecked=0, Total=7140 [2025-03-04 11:15:56,133 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 141 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 8458 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 8470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 8458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:56,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 720 Invalid, 8470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 8458 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-03-04 11:15:56,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13756 states. [2025-03-04 11:15:56,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13756 to 13330. [2025-03-04 11:15:56,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 12435 states have (on average 1.050422195416164) internal successors, (13062), 12437 states have internal predecessors, (13062), 890 states have call successors, (890), 2 states have call predecessors, (890), 2 states have return successors, (890), 890 states have call predecessors, (890), 890 states have call successors, (890) [2025-03-04 11:15:56,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 14842 transitions. [2025-03-04 11:15:56,819 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 14842 transitions. Word has length 300 [2025-03-04 11:15:56,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:56,819 INFO L471 AbstractCegarLoop]: Abstraction has 13330 states and 14842 transitions. [2025-03-04 11:15:56,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 57 states have (on average 3.9298245614035086) internal successors, (224), 52 states have internal predecessors, (224), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:15:56,819 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 14842 transitions. [2025-03-04 11:15:56,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2025-03-04 11:15:56,822 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:56,822 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:56,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2025-03-04 11:15:57,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-04 11:15:57,023 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:57,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:57,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1815263251, now seen corresponding path program 17 times [2025-03-04 11:15:57,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:57,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050726079] [2025-03-04 11:15:57,023 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:57,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:57,031 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 300 statements into 16 equivalence classes. [2025-03-04 11:15:57,048 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:15:57,048 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-04 11:15:57,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:57,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092243934] [2025-03-04 11:15:57,049 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:57,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:57,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:57,051 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:57,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-04 11:15:57,083 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 300 statements into 16 equivalence classes. [2025-03-04 11:15:57,142 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:15:57,143 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-04 11:15:57,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:57,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 75 conjuncts are in the unsatisfiable core [2025-03-04 11:15:57,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:16:00,246 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:16:00,981 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-04 11:16:01,747 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-04 11:16:02,582 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2025-03-04 11:16:02,643 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2025-03-04 11:16:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1885 backedges. 42 proven. 1500 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2025-03-04 11:16:03,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:16:03,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:16:03,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050726079] [2025-03-04 11:16:03,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:16:03,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092243934] [2025-03-04 11:16:03,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092243934] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:16:03,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:16:03,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2025-03-04 11:16:03,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342176412] [2025-03-04 11:16:03,695 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:16:03,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-03-04 11:16:03,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:16:03,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-03-04 11:16:03,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=2874, Unknown=0, NotChecked=0, Total=3192 [2025-03-04 11:16:03,697 INFO L87 Difference]: Start difference. First operand 13330 states and 14842 transitions. Second operand has 53 states, 51 states have (on average 4.450980392156863) internal successors, (227), 50 states have internal predecessors, (227), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17)