./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_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 3d083d1689aabbf2f9bd2c9523429b32bf33c71fcafd2ea04f6cb909fe9a2705 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:35:10,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:35:10,912 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:35:10,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:35:10,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:35:10,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:35:10,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:35:10,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:35:10,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:35:10,929 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:35:10,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:35:10,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:35:10,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:35:10,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:35:10,929 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:35:10,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:35:10,930 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:35:10,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:35:10,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:35:10,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:35:10,931 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 -> 3d083d1689aabbf2f9bd2c9523429b32bf33c71fcafd2ea04f6cb909fe9a2705 [2025-03-17 15:35:11,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:35:11,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:35:11,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:35:11,117 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:35:11,118 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:35:11,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound100.c [2025-03-17 15:35:12,208 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fe126114/81ea408dc1464788b33aebac874c0942/FLAGffdebe90c [2025-03-17 15:35:12,410 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:35:12,411 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound100.c [2025-03-17 15:35:12,424 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fe126114/81ea408dc1464788b33aebac874c0942/FLAGffdebe90c [2025-03-17 15:35:12,778 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fe126114/81ea408dc1464788b33aebac874c0942 [2025-03-17 15:35:12,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:35:12,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:35:12,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:35:12,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:35:12,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:35:12,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be0aefe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12, skipping insertion in model container [2025-03-17 15:35:12,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,799 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:35:12,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:35:12,902 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:35:12,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:35:12,919 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:35:12,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12 WrapperNode [2025-03-17 15:35:12,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:35:12,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:35:12,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:35:12,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:35:12,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,936 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-03-17 15:35:12,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:35:12,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:35:12,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:35:12,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:35:12,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,943 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,955 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]. [2025-03-17 15:35:12,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,959 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:35:12,961 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:35:12,961 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:35:12,961 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:35:12,962 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (1/1) ... [2025-03-17 15:35:12,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:35:12,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:12,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 15:35:12,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 15:35:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:35:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:35:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:35:13,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:35:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:35:13,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:35:13,033 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:35:13,034 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:35:13,217 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2025-03-17 15:35:13,218 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:35:13,228 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:35:13,231 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:35:13,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:35:13 BoogieIcfgContainer [2025-03-17 15:35:13,232 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:35:13,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:35:13,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:35:13,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:35:13,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:35:12" (1/3) ... [2025-03-17 15:35:13,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5677eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:35:13, skipping insertion in model container [2025-03-17 15:35:13,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:35:12" (2/3) ... [2025-03-17 15:35:13,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5677eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:35:13, skipping insertion in model container [2025-03-17 15:35:13,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:35:13" (3/3) ... [2025-03-17 15:35:13,240 INFO L128 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound100.c [2025-03-17 15:35:13,250 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:35:13,251 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps2-ll_valuebound100.c that has 2 procedures, 57 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2025-03-17 15:35:13,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:35:13,289 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;@4e178665, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:35:13,290 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-03-17 15:35:13,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 53 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:13,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 15:35:13,295 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:13,295 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 15:35:13,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:13,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:13,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2553053, now seen corresponding path program 1 times [2025-03-17 15:35:13,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:13,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366969839] [2025-03-17 15:35:13,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:13,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:13,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 15:35:13,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 15:35:13,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:13,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:13,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366969839] [2025-03-17 15:35:13,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366969839] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:13,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:35:13,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:35:13,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988461335] [2025-03-17 15:35:13,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:13,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 15:35:13,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:13,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 15:35:13,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:35:13,388 INFO L87 Difference]: Start difference. First operand has 57 states, 31 states have (on average 1.8387096774193548) internal successors, (57), 53 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:35:13,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:13,398 INFO L93 Difference]: Finished difference Result 110 states and 121 transitions. [2025-03-17 15:35:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 15:35:13,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-17 15:35:13,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:13,403 INFO L225 Difference]: With dead ends: 110 [2025-03-17 15:35:13,403 INFO L226 Difference]: Without dead ends: 51 [2025-03-17 15:35:13,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:35:13,406 INFO L435 NwaCegarLoop]: 56 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, 56 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 [2025-03-17 15:35:13,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:35:13,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2025-03-17 15:35:13,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2025-03-17 15:35:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 48 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:35:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2025-03-17 15:35:13,430 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 4 [2025-03-17 15:35:13,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:13,430 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2025-03-17 15:35:13,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:35:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2025-03-17 15:35:13,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-17 15:35:13,431 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:13,431 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 15:35:13,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:35:13,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:13,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:13,433 INFO L85 PathProgramCache]: Analyzing trace with hash 79174449, now seen corresponding path program 1 times [2025-03-17 15:35:13,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:13,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551907479] [2025-03-17 15:35:13,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:13,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:13,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 15:35:13,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 15:35:13,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:13,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:35:13,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [585451021] [2025-03-17 15:35:13,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:13,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:13,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:13,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:13,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:35:13,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 15:35:13,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 15:35:13,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:13,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:13,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:35:13,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:13,522 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:35:13,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:13,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551907479] [2025-03-17 15:35:13,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:35:13,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585451021] [2025-03-17 15:35:13,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585451021] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:13,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:35:13,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:35:13,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385583586] [2025-03-17 15:35:13,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:13,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:35:13,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:13,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:35:13,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:35:13,525 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:35:13,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:13,590 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2025-03-17 15:35:13,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:35:13,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-17 15:35:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:13,591 INFO L225 Difference]: With dead ends: 83 [2025-03-17 15:35:13,592 INFO L226 Difference]: Without dead ends: 79 [2025-03-17 15:35:13,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:35:13,593 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 25 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:13,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 50 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:13,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2025-03-17 15:35:13,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2025-03-17 15:35:13,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.6590909090909092) internal successors, (73), 63 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2025-03-17 15:35:13,599 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 5 [2025-03-17 15:35:13,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:13,599 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2025-03-17 15:35:13,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:35:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2025-03-17 15:35:13,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 15:35:13,599 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:13,599 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 15:35:13,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 15:35:13,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:13,804 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:13,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:13,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1840559364, now seen corresponding path program 1 times [2025-03-17 15:35:13,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:13,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535318022] [2025-03-17 15:35:13,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:13,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:13,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 15:35:13,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 15:35:13,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:13,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:13,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:13,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:13,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535318022] [2025-03-17 15:35:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535318022] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:13,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:35:13,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:35:13,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846596826] [2025-03-17 15:35:13,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:13,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:35:13,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:13,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:35:13,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:35:13,839 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:35:13,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:13,919 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2025-03-17 15:35:13,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:35:13,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-17 15:35:13,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:13,920 INFO L225 Difference]: With dead ends: 85 [2025-03-17 15:35:13,920 INFO L226 Difference]: Without dead ends: 77 [2025-03-17 15:35:13,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:35:13,921 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 22 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:13,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 54 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-17 15:35:13,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2025-03-17 15:35:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 49 states have (on average 1.530612244897959) internal successors, (75), 68 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 79 transitions. [2025-03-17 15:35:13,926 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 79 transitions. Word has length 6 [2025-03-17 15:35:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:13,926 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 79 transitions. [2025-03-17 15:35:13,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:35:13,926 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 79 transitions. [2025-03-17 15:35:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 15:35:13,927 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:13,927 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:35:13,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 15:35:13,927 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:13,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:13,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1743465965, now seen corresponding path program 1 times [2025-03-17 15:35:13,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:13,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349050657] [2025-03-17 15:35:13,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:13,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:35:13,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:35:13,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:13,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:14,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:14,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349050657] [2025-03-17 15:35:14,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349050657] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:14,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:35:14,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:35:14,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309992481] [2025-03-17 15:35:14,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:14,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:35:14,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:14,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:35:14,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:35:14,001 INFO L87 Difference]: Start difference. First operand 72 states and 79 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:35:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:14,062 INFO L93 Difference]: Finished difference Result 81 states and 84 transitions. [2025-03-17 15:35:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:35:14,062 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-17 15:35:14,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:14,063 INFO L225 Difference]: With dead ends: 81 [2025-03-17 15:35:14,063 INFO L226 Difference]: Without dead ends: 69 [2025-03-17 15:35:14,063 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 [2025-03-17 15:35:14,063 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 37 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:14,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 52 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2025-03-17 15:35:14,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2025-03-17 15:35:14,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 61 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:14,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2025-03-17 15:35:14,068 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 9 [2025-03-17 15:35:14,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:14,068 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2025-03-17 15:35:14,068 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:35:14,069 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2025-03-17 15:35:14,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-17 15:35:14,069 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:14,069 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:35:14,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:35:14,069 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:14,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:14,070 INFO L85 PathProgramCache]: Analyzing trace with hash 364804532, now seen corresponding path program 1 times [2025-03-17 15:35:14,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:14,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117865313] [2025-03-17 15:35:14,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:14,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:14,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 15:35:14,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 15:35:14,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:14,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:14,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:14,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:14,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117865313] [2025-03-17 15:35:14,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117865313] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:14,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:35:14,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:35:14,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722211326] [2025-03-17 15:35:14,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:14,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:35:14,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:14,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:35:14,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:35:14,114 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:35:14,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:14,133 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2025-03-17 15:35:14,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:35:14,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2025-03-17 15:35:14,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:14,134 INFO L225 Difference]: With dead ends: 67 [2025-03-17 15:35:14,134 INFO L226 Difference]: Without dead ends: 65 [2025-03-17 15:35:14,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:35:14,135 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:14,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 91 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:35:14,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2025-03-17 15:35:14,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2025-03-17 15:35:14,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 61 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2025-03-17 15:35:14,145 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 18 [2025-03-17 15:35:14,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:14,145 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2025-03-17 15:35:14,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:35:14,146 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2025-03-17 15:35:14,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-17 15:35:14,146 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:14,146 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:35:14,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 15:35:14,146 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:14,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:14,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1178560848, now seen corresponding path program 1 times [2025-03-17 15:35:14,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:14,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352900144] [2025-03-17 15:35:14,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:14,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:14,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 15:35:14,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 15:35:14,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:14,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:14,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:14,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352900144] [2025-03-17 15:35:14,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352900144] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:14,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:35:14,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:35:14,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691749162] [2025-03-17 15:35:14,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:14,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:35:14,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:14,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:35:14,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:35:14,254 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:35:14,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:14,330 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2025-03-17 15:35:14,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:35:14,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-03-17 15:35:14,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:14,331 INFO L225 Difference]: With dead ends: 68 [2025-03-17 15:35:14,331 INFO L226 Difference]: Without dead ends: 67 [2025-03-17 15:35:14,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:35:14,332 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:14,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 61 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2025-03-17 15:35:14,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2025-03-17 15:35:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 62 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2025-03-17 15:35:14,339 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 22 [2025-03-17 15:35:14,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:14,339 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2025-03-17 15:35:14,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:35:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2025-03-17 15:35:14,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-17 15:35:14,339 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:14,339 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:35:14,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 15:35:14,339 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:14,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:14,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2119319364, now seen corresponding path program 1 times [2025-03-17 15:35:14,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:14,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352389336] [2025-03-17 15:35:14,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:14,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:14,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 15:35:14,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 15:35:14,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:14,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:14,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:14,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352389336] [2025-03-17 15:35:14,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352389336] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:14,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:35:14,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:35:14,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526346865] [2025-03-17 15:35:14,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:14,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:35:14,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:14,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:35:14,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:35:14,403 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:35:14,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:14,458 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2025-03-17 15:35:14,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:35:14,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2025-03-17 15:35:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:14,460 INFO L225 Difference]: With dead ends: 68 [2025-03-17 15:35:14,461 INFO L226 Difference]: Without dead ends: 67 [2025-03-17 15:35:14,461 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 [2025-03-17 15:35:14,461 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:14,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2025-03-17 15:35:14,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2025-03-17 15:35:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 63 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:14,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2025-03-17 15:35:14,468 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 23 [2025-03-17 15:35:14,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:14,468 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2025-03-17 15:35:14,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:35:14,468 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2025-03-17 15:35:14,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-17 15:35:14,468 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:14,469 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:35:14,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 15:35:14,469 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:14,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:14,469 INFO L85 PathProgramCache]: Analyzing trace with hash 851411042, now seen corresponding path program 1 times [2025-03-17 15:35:14,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:14,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379226640] [2025-03-17 15:35:14,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:14,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:14,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 15:35:14,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 15:35:14,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:14,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:35:14,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [127322092] [2025-03-17 15:35:14,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:14,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:14,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:14,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:14,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:35:14,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 15:35:14,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 15:35:14,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:14,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:14,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:35:14,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:14,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:14,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:14,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379226640] [2025-03-17 15:35:14,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:35:14,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127322092] [2025-03-17 15:35:14,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127322092] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:35:14,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:35:14,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-03-17 15:35:14,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402758286] [2025-03-17 15:35:14,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:35:14,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:35:14,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:14,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:35:14,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:35:14,627 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:14,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:14,774 INFO L93 Difference]: Finished difference Result 130 states and 161 transitions. [2025-03-17 15:35:14,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:35:14,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-03-17 15:35:14,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:14,776 INFO L225 Difference]: With dead ends: 130 [2025-03-17 15:35:14,776 INFO L226 Difference]: Without dead ends: 126 [2025-03-17 15:35:14,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:35:14,776 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 91 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:14,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 96 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2025-03-17 15:35:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 98. [2025-03-17 15:35:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 76 states have (on average 1.513157894736842) internal successors, (115), 92 states have internal predecessors, (115), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 15:35:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 123 transitions. [2025-03-17 15:35:14,782 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 123 transitions. Word has length 25 [2025-03-17 15:35:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:14,782 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 123 transitions. [2025-03-17 15:35:14,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:14,782 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2025-03-17 15:35:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-17 15:35:14,783 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:14,783 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:35:14,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 15:35:14,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-03-17 15:35:14,983 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:14,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:14,984 INFO L85 PathProgramCache]: Analyzing trace with hash 623938539, now seen corresponding path program 1 times [2025-03-17 15:35:14,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:14,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755843114] [2025-03-17 15:35:14,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:14,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:14,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 15:35:14,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 15:35:14,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:14,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:15,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755843114] [2025-03-17 15:35:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755843114] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120367956] [2025-03-17 15:35:15,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:15,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:15,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:15,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:15,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:35:15,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 15:35:15,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 15:35:15,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:15,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:15,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:35:15,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:15,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:15,166 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:15,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120367956] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:35:15,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:35:15,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-17 15:35:15,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967654695] [2025-03-17 15:35:15,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:35:15,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:35:15,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:15,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:35:15,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:35:15,227 INFO L87 Difference]: Start difference. First operand 98 states and 123 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:35:15,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:15,339 INFO L93 Difference]: Finished difference Result 98 states and 123 transitions. [2025-03-17 15:35:15,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:35:15,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2025-03-17 15:35:15,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:15,340 INFO L225 Difference]: With dead ends: 98 [2025-03-17 15:35:15,341 INFO L226 Difference]: Without dead ends: 95 [2025-03-17 15:35:15,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:35:15,341 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 55 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:15,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 64 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:15,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2025-03-17 15:35:15,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2025-03-17 15:35:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 89 states have internal predecessors, (108), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 15:35:15,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 116 transitions. [2025-03-17 15:35:15,346 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 116 transitions. Word has length 26 [2025-03-17 15:35:15,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:15,346 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 116 transitions. [2025-03-17 15:35:15,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:35:15,346 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 116 transitions. [2025-03-17 15:35:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-17 15:35:15,347 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:15,347 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] [2025-03-17 15:35:15,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 15:35:15,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:15,548 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:15,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:15,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2132741760, now seen corresponding path program 1 times [2025-03-17 15:35:15,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:15,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016796164] [2025-03-17 15:35:15,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:15,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:15,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-17 15:35:15,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-17 15:35:15,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:15,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:15,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:15,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016796164] [2025-03-17 15:35:15,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016796164] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:15,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218375425] [2025-03-17 15:35:15,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:15,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:15,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:15,631 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:15,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:35:15,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-17 15:35:15,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-17 15:35:15,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:15,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:15,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:35:15,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:15,723 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:15,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218375425] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:35:15,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:35:15,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-17 15:35:15,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900472868] [2025-03-17 15:35:15,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:35:15,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:35:15,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:15,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:35:15,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:35:15,773 INFO L87 Difference]: Start difference. First operand 95 states and 116 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:35:15,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:15,885 INFO L93 Difference]: Finished difference Result 107 states and 128 transitions. [2025-03-17 15:35:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:35:15,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 27 [2025-03-17 15:35:15,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:15,885 INFO L225 Difference]: With dead ends: 107 [2025-03-17 15:35:15,885 INFO L226 Difference]: Without dead ends: 100 [2025-03-17 15:35:15,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:35:15,886 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 52 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:15,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 76 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:15,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2025-03-17 15:35:15,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2025-03-17 15:35:15,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.263157894736842) internal successors, (96), 84 states have internal predecessors, (96), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 15:35:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2025-03-17 15:35:15,894 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 27 [2025-03-17 15:35:15,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:15,894 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2025-03-17 15:35:15,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:35:15,894 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2025-03-17 15:35:15,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-17 15:35:15,895 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:15,895 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] [2025-03-17 15:35:15,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 15:35:16,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:16,095 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:16,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:16,096 INFO L85 PathProgramCache]: Analyzing trace with hash -865430882, now seen corresponding path program 1 times [2025-03-17 15:35:16,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:16,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618203417] [2025-03-17 15:35:16,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:16,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:16,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 15:35:16,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 15:35:16,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:16,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:16,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:16,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:16,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618203417] [2025-03-17 15:35:16,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618203417] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:16,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077311592] [2025-03-17 15:35:16,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:16,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:16,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:16,169 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:16,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:35:16,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 15:35:16,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 15:35:16,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:16,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:16,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:35:16,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:16,303 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:35:16,303 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:35:16,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077311592] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:16,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:35:16,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2025-03-17 15:35:16,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103050139] [2025-03-17 15:35:16,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:16,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:35:16,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:16,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:35:16,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:35:16,306 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:35:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:16,349 INFO L93 Difference]: Finished difference Result 90 states and 104 transitions. [2025-03-17 15:35:16,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:35:16,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2025-03-17 15:35:16,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:16,350 INFO L225 Difference]: With dead ends: 90 [2025-03-17 15:35:16,350 INFO L226 Difference]: Without dead ends: 78 [2025-03-17 15:35:16,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:35:16,351 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 61 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:16,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 28 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:35:16,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-03-17 15:35:16,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2025-03-17 15:35:16,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.1470588235294117) internal successors, (78), 72 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 15:35:16,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2025-03-17 15:35:16,361 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 29 [2025-03-17 15:35:16,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:16,361 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2025-03-17 15:35:16,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:35:16,361 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2025-03-17 15:35:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-17 15:35:16,361 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:16,361 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:35:16,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 15:35:16,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-17 15:35:16,563 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:16,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:16,563 INFO L85 PathProgramCache]: Analyzing trace with hash -417936349, now seen corresponding path program 1 times [2025-03-17 15:35:16,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:16,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609344429] [2025-03-17 15:35:16,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:16,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:16,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:35:16,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:35:16,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:16,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:35:16,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:16,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609344429] [2025-03-17 15:35:16,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609344429] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:16,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278751178] [2025-03-17 15:35:16,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:16,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:16,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:16,596 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:16,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:35:16,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:35:16,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:35:16,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:16,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:16,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:35:16,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:16,655 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:35:16,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:35:16,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278751178] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:16,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:35:16,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-17 15:35:16,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69234117] [2025-03-17 15:35:16,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:16,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:35:16,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:16,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:35:16,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:35:16,656 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:16,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:16,674 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2025-03-17 15:35:16,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:35:16,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2025-03-17 15:35:16,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:16,675 INFO L225 Difference]: With dead ends: 78 [2025-03-17 15:35:16,675 INFO L226 Difference]: Without dead ends: 77 [2025-03-17 15:35:16,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:35:16,675 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:16,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 53 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:35:16,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-17 15:35:16,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-03-17 15:35:16,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 68 states have (on average 1.1029411764705883) internal successors, (75), 71 states have internal predecessors, (75), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 15:35:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2025-03-17 15:35:16,688 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 38 [2025-03-17 15:35:16,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:16,688 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2025-03-17 15:35:16,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2025-03-17 15:35:16,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-17 15:35:16,689 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:16,689 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:35:16,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 15:35:16,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:16,890 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:16,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:16,892 INFO L85 PathProgramCache]: Analyzing trace with hash -71124935, now seen corresponding path program 1 times [2025-03-17 15:35:16,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:16,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147867730] [2025-03-17 15:35:16,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:16,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:16,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:35:16,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:35:16,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:16,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:35:16,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:16,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147867730] [2025-03-17 15:35:16,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147867730] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642433854] [2025-03-17 15:35:16,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:16,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:16,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:16,939 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:16,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 15:35:16,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:35:16,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:35:16,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:16,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:16,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:35:16,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:35:17,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:35:17,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642433854] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:35:17,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:35:17,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-17 15:35:17,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885388720] [2025-03-17 15:35:17,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:35:17,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:35:17,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:17,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:35:17,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:35:17,049 INFO L87 Difference]: Start difference. First operand 77 states and 83 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 15:35:17,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:17,069 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2025-03-17 15:35:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:35:17,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 39 [2025-03-17 15:35:17,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:17,070 INFO L225 Difference]: With dead ends: 90 [2025-03-17 15:35:17,070 INFO L226 Difference]: Without dead ends: 89 [2025-03-17 15:35:17,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:35:17,070 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:17,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 89 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:35:17,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-03-17 15:35:17,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2025-03-17 15:35:17,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 77 states have (on average 1.077922077922078) internal successors, (83), 80 states have internal predecessors, (83), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 15:35:17,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2025-03-17 15:35:17,075 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 39 [2025-03-17 15:35:17,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:17,075 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2025-03-17 15:35:17,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 15:35:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2025-03-17 15:35:17,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-17 15:35:17,077 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:17,077 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2025-03-17 15:35:17,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 15:35:17,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:17,278 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:17,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1169550682, now seen corresponding path program 1 times [2025-03-17 15:35:17,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:17,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420455584] [2025-03-17 15:35:17,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:17,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:17,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 15:35:17,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 15:35:17,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:17,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:35:17,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:17,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420455584] [2025-03-17 15:35:17,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420455584] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:17,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745917318] [2025-03-17 15:35:17,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:35:17,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:17,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:17,404 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:17,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 15:35:17,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 15:35:17,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 15:35:17,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:35:17,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:17,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:35:17,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:35:17,587 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:17,734 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:35:17,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745917318] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:35:17,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:35:17,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2025-03-17 15:35:17,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197343314] [2025-03-17 15:35:17,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:35:17,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-17 15:35:17,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:17,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-17 15:35:17,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2025-03-17 15:35:17,738 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand has 20 states, 19 states have (on average 7.526315789473684) internal successors, (143), 20 states have internal predecessors, (143), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 15:35:17,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:17,968 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2025-03-17 15:35:17,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:35:17,968 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.526315789473684) internal successors, (143), 20 states have internal predecessors, (143), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 63 [2025-03-17 15:35:17,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:17,969 INFO L225 Difference]: With dead ends: 126 [2025-03-17 15:35:17,969 INFO L226 Difference]: Without dead ends: 125 [2025-03-17 15:35:17,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=248, Invalid=402, Unknown=0, NotChecked=0, Total=650 [2025-03-17 15:35:17,970 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:17,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 91 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:17,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2025-03-17 15:35:17,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2025-03-17 15:35:17,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 111 states have (on average 1.0990990990990992) internal successors, (122), 114 states have internal predecessors, (122), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:35:17,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2025-03-17 15:35:17,975 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 63 [2025-03-17 15:35:17,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:17,975 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2025-03-17 15:35:17,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.526315789473684) internal successors, (143), 20 states have internal predecessors, (143), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 15:35:17,976 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2025-03-17 15:35:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-17 15:35:17,976 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:17,976 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 15:35:17,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 15:35:18,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-17 15:35:18,177 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:18,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:18,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1944304670, now seen corresponding path program 2 times [2025-03-17 15:35:18,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:18,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991424929] [2025-03-17 15:35:18,177 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:35:18,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:18,182 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-03-17 15:35:18,187 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 15:35:18,187 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:35:18,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:18,276 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:35:18,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:18,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991424929] [2025-03-17 15:35:18,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991424929] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:18,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933659049] [2025-03-17 15:35:18,276 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:35:18,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:18,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:18,278 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:18,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 15:35:18,299 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-03-17 15:35:18,311 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-03-17 15:35:18,311 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:35:18,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:18,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:35:18,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:35:18,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:35:18,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933659049] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:35:18,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:35:18,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2025-03-17 15:35:18,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260090375] [2025-03-17 15:35:18,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:35:18,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-17 15:35:18,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:18,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-17 15:35:18,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=297, Unknown=0, NotChecked=0, Total=462 [2025-03-17 15:35:18,613 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand has 22 states, 21 states have (on average 7.190476190476191) internal successors, (151), 22 states have internal predecessors, (151), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 15:35:18,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:18,858 INFO L93 Difference]: Finished difference Result 131 states and 142 transitions. [2025-03-17 15:35:18,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 15:35:18,859 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.190476190476191) internal successors, (151), 22 states have internal predecessors, (151), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 67 [2025-03-17 15:35:18,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:18,860 INFO L225 Difference]: With dead ends: 131 [2025-03-17 15:35:18,860 INFO L226 Difference]: Without dead ends: 130 [2025-03-17 15:35:18,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2025-03-17 15:35:18,860 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 58 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:18,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 107 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:18,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2025-03-17 15:35:18,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2025-03-17 15:35:18,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 115 states have (on average 1.0782608695652174) internal successors, (124), 118 states have internal predecessors, (124), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:35:18,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 138 transitions. [2025-03-17 15:35:18,865 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 138 transitions. Word has length 67 [2025-03-17 15:35:18,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:18,865 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 138 transitions. [2025-03-17 15:35:18,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.190476190476191) internal successors, (151), 22 states have internal predecessors, (151), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 15:35:18,866 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2025-03-17 15:35:18,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-03-17 15:35:18,866 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:18,866 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2025-03-17 15:35:18,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 15:35:19,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 15:35:19,067 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:19,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:19,067 INFO L85 PathProgramCache]: Analyzing trace with hash -93478667, now seen corresponding path program 2 times [2025-03-17 15:35:19,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:19,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212862446] [2025-03-17 15:35:19,067 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:35:19,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:19,075 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 85 statements into 2 equivalence classes. [2025-03-17 15:35:19,088 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 15:35:19,091 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:35:19,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:35:19,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936674473] [2025-03-17 15:35:19,092 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:35:19,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:19,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:19,093 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:19,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 15:35:19,114 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 85 statements into 2 equivalence classes. [2025-03-17 15:35:19,129 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 15:35:19,130 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:35:19,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:19,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:35:19,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:35:19,210 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:35:19,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:19,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212862446] [2025-03-17 15:35:19,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:35:19,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936674473] [2025-03-17 15:35:19,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936674473] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:35:19,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:35:19,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-03-17 15:35:19,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901343309] [2025-03-17 15:35:19,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:35:19,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:35:19,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:19,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:35:19,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:35:19,359 INFO L87 Difference]: Start difference. First operand 127 states and 138 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:35:19,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:19,616 INFO L93 Difference]: Finished difference Result 181 states and 198 transitions. [2025-03-17 15:35:19,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:35:19,617 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 85 [2025-03-17 15:35:19,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:19,618 INFO L225 Difference]: With dead ends: 181 [2025-03-17 15:35:19,618 INFO L226 Difference]: Without dead ends: 180 [2025-03-17 15:35:19,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:35:19,618 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 104 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:19,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 242 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:35:19,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2025-03-17 15:35:19,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 173. [2025-03-17 15:35:19,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 158 states have (on average 1.0886075949367089) internal successors, (172), 161 states have internal predecessors, (172), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:35:19,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 192 transitions. [2025-03-17 15:35:19,625 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 192 transitions. Word has length 85 [2025-03-17 15:35:19,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:19,625 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 192 transitions. [2025-03-17 15:35:19,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:35:19,625 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 192 transitions. [2025-03-17 15:35:19,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-17 15:35:19,627 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:19,627 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2025-03-17 15:35:19,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 15:35:19,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-17 15:35:19,828 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:19,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:19,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1053369460, now seen corresponding path program 2 times [2025-03-17 15:35:19,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:19,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997729248] [2025-03-17 15:35:19,829 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:35:19,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:19,835 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 99 statements into 2 equivalence classes. [2025-03-17 15:35:19,836 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 99 statements. [2025-03-17 15:35:19,836 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:35:19,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:19,854 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2025-03-17 15:35:19,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:19,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997729248] [2025-03-17 15:35:19,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997729248] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:19,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667818216] [2025-03-17 15:35:19,854 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:35:19,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:19,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:19,857 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:19,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 15:35:19,878 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 99 statements into 2 equivalence classes. [2025-03-17 15:35:19,883 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 99 statements. [2025-03-17 15:35:19,883 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:35:19,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:19,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:35:19,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2025-03-17 15:35:19,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:20,043 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2025-03-17 15:35:20,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667818216] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:35:20,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:35:20,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-17 15:35:20,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141021097] [2025-03-17 15:35:20,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:35:20,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:35:20,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:20,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:35:20,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:35:20,045 INFO L87 Difference]: Start difference. First operand 173 states and 192 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:20,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:20,063 INFO L93 Difference]: Finished difference Result 173 states and 192 transitions. [2025-03-17 15:35:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:35:20,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 99 [2025-03-17 15:35:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:20,065 INFO L225 Difference]: With dead ends: 173 [2025-03-17 15:35:20,065 INFO L226 Difference]: Without dead ends: 172 [2025-03-17 15:35:20,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:35:20,065 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 37 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:20,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:35:20,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-03-17 15:35:20,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2025-03-17 15:35:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 158 states have (on average 1.0506329113924051) internal successors, (166), 160 states have internal predecessors, (166), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:35:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 186 transitions. [2025-03-17 15:35:20,071 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 186 transitions. Word has length 99 [2025-03-17 15:35:20,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:20,071 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 186 transitions. [2025-03-17 15:35:20,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:20,071 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 186 transitions. [2025-03-17 15:35:20,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-03-17 15:35:20,072 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:20,072 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1] [2025-03-17 15:35:20,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 15:35:20,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-17 15:35:20,273 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:20,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:20,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1917852522, now seen corresponding path program 2 times [2025-03-17 15:35:20,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:20,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752523463] [2025-03-17 15:35:20,273 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:35:20,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:20,279 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-03-17 15:35:20,299 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-03-17 15:35:20,300 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:35:20,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-17 15:35:20,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:20,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752523463] [2025-03-17 15:35:20,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752523463] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:20,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372238503] [2025-03-17 15:35:20,594 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:35:20,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:20,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:20,597 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:20,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 15:35:20,623 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-03-17 15:35:20,630 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 143 statements. [2025-03-17 15:35:20,631 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:35:20,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:20,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:35:20,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:20,781 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2025-03-17 15:35:20,782 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:35:20,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372238503] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:35:20,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:35:20,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 20 [2025-03-17 15:35:20,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835030610] [2025-03-17 15:35:20,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:20,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:35:20,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:20,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:35:20,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2025-03-17 15:35:20,783 INFO L87 Difference]: Start difference. First operand 172 states and 186 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:20,855 INFO L93 Difference]: Finished difference Result 174 states and 188 transitions. [2025-03-17 15:35:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:35:20,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 143 [2025-03-17 15:35:20,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:20,856 INFO L225 Difference]: With dead ends: 174 [2025-03-17 15:35:20,857 INFO L226 Difference]: Without dead ends: 173 [2025-03-17 15:35:20,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2025-03-17 15:35:20,857 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:20,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 36 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:20,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-03-17 15:35:20,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 171. [2025-03-17 15:35:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 158 states have (on average 1.0253164556962024) internal successors, (162), 159 states have internal predecessors, (162), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:35:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 182 transitions. [2025-03-17 15:35:20,866 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 182 transitions. Word has length 143 [2025-03-17 15:35:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:20,866 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 182 transitions. [2025-03-17 15:35:20,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:35:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 182 transitions. [2025-03-17 15:35:20,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-17 15:35:20,867 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:20,867 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2025-03-17 15:35:20,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-17 15:35:21,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 15:35:21,068 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:21,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:21,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1286097574, now seen corresponding path program 3 times [2025-03-17 15:35:21,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:21,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699140878] [2025-03-17 15:35:21,068 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:35:21,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:21,074 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 147 statements into 8 equivalence classes. [2025-03-17 15:35:21,110 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 147 of 147 statements. [2025-03-17 15:35:21,110 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-17 15:35:21,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-17 15:35:21,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:21,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699140878] [2025-03-17 15:35:21,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699140878] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:21,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507979789] [2025-03-17 15:35:21,386 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:35:21,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:21,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:21,388 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:35:21,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 15:35:21,413 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 147 statements into 8 equivalence classes. [2025-03-17 15:35:21,422 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 27 of 147 statements. [2025-03-17 15:35:21,422 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 15:35:21,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:21,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:35:21,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:45,825 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse0) 2) 0) (<= .cse0 (+ 9223372036854775806 (* 2 |ULTIMATE.start_main_~y~0#1|))) (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2025-03-17 15:35:49,857 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 2 not checked. [2025-03-17 15:35:49,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:58,199 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2025-03-17 15:35:58,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507979789] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:35:58,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:35:58,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16, 8] total 28 [2025-03-17 15:35:58,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488456164] [2025-03-17 15:35:58,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:35:58,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:35:58,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:58,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:35:58,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=604, Unknown=3, NotChecked=52, Total=812 [2025-03-17 15:35:58,200 INFO L87 Difference]: Start difference. First operand 171 states and 182 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:35:58,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:35:58,411 INFO L93 Difference]: Finished difference Result 171 states and 182 transitions. [2025-03-17 15:35:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:35:58,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 147 [2025-03-17 15:35:58,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:35:58,413 INFO L225 Difference]: With dead ends: 171 [2025-03-17 15:35:58,413 INFO L226 Difference]: Without dead ends: 170 [2025-03-17 15:35:58,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=184, Invalid=747, Unknown=3, NotChecked=58, Total=992 [2025-03-17 15:35:58,414 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 61 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:35:58,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 36 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:35:58,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-03-17 15:35:58,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2025-03-17 15:35:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 158 states have (on average 1.0063291139240507) internal successors, (159), 158 states have internal predecessors, (159), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:35:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 179 transitions. [2025-03-17 15:35:58,423 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 179 transitions. Word has length 147 [2025-03-17 15:35:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:35:58,423 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 179 transitions. [2025-03-17 15:35:58,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:35:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 179 transitions. [2025-03-17 15:35:58,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-03-17 15:35:58,425 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:35:58,425 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2025-03-17 15:35:58,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-17 15:35:58,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:58,625 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:35:58,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:35:58,626 INFO L85 PathProgramCache]: Analyzing trace with hash -559931749, now seen corresponding path program 3 times [2025-03-17 15:35:58,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:35:58,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003006376] [2025-03-17 15:35:58,626 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:35:58,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:35:58,633 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 205 statements into 11 equivalence classes. [2025-03-17 15:35:58,673 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 205 of 205 statements. [2025-03-17 15:35:58,673 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 15:35:58,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:35:58,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1900194178] [2025-03-17 15:35:58,675 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:35:58,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:35:58,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:35:58,677 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) [2025-03-17 15:35:58,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 15:35:58,718 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 205 statements into 11 equivalence classes. [2025-03-17 15:35:58,783 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 205 of 205 statements. [2025-03-17 15:35:58,784 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 15:35:58,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:35:58,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 15:35:58,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:35:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 740 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-17 15:35:59,030 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:35:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 740 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-17 15:35:59,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:35:59,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003006376] [2025-03-17 15:35:59,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:35:59,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900194178] [2025-03-17 15:35:59,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900194178] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:35:59,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:35:59,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2025-03-17 15:35:59,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302981441] [2025-03-17 15:35:59,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:35:59,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 15:35:59,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:35:59,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 15:35:59,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2025-03-17 15:35:59,608 INFO L87 Difference]: Start difference. First operand 170 states and 179 transitions. Second operand has 24 states, 23 states have (on average 13.521739130434783) internal successors, (311), 24 states have internal predecessors, (311), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 15:36:00,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:00,661 INFO L93 Difference]: Finished difference Result 363 states and 395 transitions. [2025-03-17 15:36:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-17 15:36:00,661 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 13.521739130434783) internal successors, (311), 24 states have internal predecessors, (311), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 205 [2025-03-17 15:36:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:00,663 INFO L225 Difference]: With dead ends: 363 [2025-03-17 15:36:00,663 INFO L226 Difference]: Without dead ends: 362 [2025-03-17 15:36:00,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 15:36:00,664 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 134 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:00,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 924 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:36:00,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2025-03-17 15:36:00,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2025-03-17 15:36:00,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 338 states have (on average 1.0029585798816567) internal successors, (339), 338 states have internal predecessors, (339), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:36:00,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 383 transitions. [2025-03-17 15:36:00,690 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 383 transitions. Word has length 205 [2025-03-17 15:36:00,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:00,690 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 383 transitions. [2025-03-17 15:36:00,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 13.521739130434783) internal successors, (311), 24 states have internal predecessors, (311), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 15:36:00,691 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 383 transitions. [2025-03-17 15:36:00,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2025-03-17 15:36:00,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:00,694 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2025-03-17 15:36:00,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-17 15:36:00,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:00,895 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:36:00,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:00,895 INFO L85 PathProgramCache]: Analyzing trace with hash -905770009, now seen corresponding path program 4 times [2025-03-17 15:36:00,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:00,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130544518] [2025-03-17 15:36:00,895 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:36:00,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:00,906 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 445 statements into 2 equivalence classes. [2025-03-17 15:36:00,970 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 445 of 445 statements. [2025-03-17 15:36:00,970 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:36:00,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:00,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446024898] [2025-03-17 15:36:00,975 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:36:00,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:00,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:00,980 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) [2025-03-17 15:36:00,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 15:36:01,013 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 445 statements into 2 equivalence classes. [2025-03-17 15:36:01,086 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 445 of 445 statements. [2025-03-17 15:36:01,086 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:36:01,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:01,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-17 15:36:01,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:01,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4664 backedges. 0 proven. 3740 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-03-17 15:36:01,728 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:03,082 INFO L134 CoverageAnalysis]: Checked inductivity of 4664 backedges. 0 proven. 3740 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-03-17 15:36:03,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:03,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130544518] [2025-03-17 15:36:03,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:03,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446024898] [2025-03-17 15:36:03,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446024898] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:36:03,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:36:03,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2025-03-17 15:36:03,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938123781] [2025-03-17 15:36:03,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:03,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-03-17 15:36:03,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:03,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-03-17 15:36:03,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2025-03-17 15:36:03,085 INFO L87 Difference]: Start difference. First operand 362 states and 383 transitions. Second operand has 48 states, 47 states have (on average 14.27659574468085) internal successors, (671), 48 states have internal predecessors, (671), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-03-17 15:36:07,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:07,141 INFO L93 Difference]: Finished difference Result 747 states and 815 transitions. [2025-03-17 15:36:07,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-17 15:36:07,141 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 14.27659574468085) internal successors, (671), 48 states have internal predecessors, (671), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 445 [2025-03-17 15:36:07,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:07,144 INFO L225 Difference]: With dead ends: 747 [2025-03-17 15:36:07,144 INFO L226 Difference]: Without dead ends: 746 [2025-03-17 15:36:07,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 910 GetRequests, 842 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2025-03-17 15:36:07,146 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 266 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 6065 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3429 SdHoareTripleChecker+Invalid, 6089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:07,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 3429 Invalid, 6089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6065 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-17 15:36:07,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2025-03-17 15:36:07,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2025-03-17 15:36:07,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 698 states have (on average 1.001432664756447) internal successors, (699), 698 states have internal predecessors, (699), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-17 15:36:07,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 791 transitions. [2025-03-17 15:36:07,169 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 791 transitions. Word has length 445 [2025-03-17 15:36:07,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:07,169 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 791 transitions. [2025-03-17 15:36:07,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 14.27659574468085) internal successors, (671), 48 states have internal predecessors, (671), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-03-17 15:36:07,170 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 791 transitions. [2025-03-17 15:36:07,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2025-03-17 15:36:07,184 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:07,185 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2025-03-17 15:36:07,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-17 15:36:07,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:07,385 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:36:07,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:07,386 INFO L85 PathProgramCache]: Analyzing trace with hash 887664255, now seen corresponding path program 5 times [2025-03-17 15:36:07,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:07,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814029216] [2025-03-17 15:36:07,386 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:36:07,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:07,413 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 925 statements into 47 equivalence classes. [2025-03-17 15:36:07,781 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 925 of 925 statements. [2025-03-17 15:36:07,782 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 15:36:07,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:07,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146087965] [2025-03-17 15:36:07,785 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:36:07,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:07,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:07,788 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) [2025-03-17 15:36:07,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-17 15:36:07,841 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 925 statements into 47 equivalence classes. [2025-03-17 15:36:08,477 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 925 of 925 statements. [2025-03-17 15:36:08,478 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 15:36:08,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:08,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-03-17 15:36:08,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 20792 backedges. 0 proven. 16652 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2025-03-17 15:36:09,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:14,271 INFO L134 CoverageAnalysis]: Checked inductivity of 20792 backedges. 0 proven. 16652 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2025-03-17 15:36:14,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:14,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814029216] [2025-03-17 15:36:14,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:14,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146087965] [2025-03-17 15:36:14,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146087965] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:36:14,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:36:14,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2025-03-17 15:36:14,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340638096] [2025-03-17 15:36:14,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:14,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-03-17 15:36:14,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:14,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-03-17 15:36:14,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 15:36:14,276 INFO L87 Difference]: Start difference. First operand 746 states and 791 transitions. Second operand has 96 states, 95 states have (on average 14.642105263157895) internal successors, (1391), 96 states have internal predecessors, (1391), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-17 15:36:32,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:32,105 INFO L93 Difference]: Finished difference Result 1515 states and 1655 transitions. [2025-03-17 15:36:32,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-03-17 15:36:32,105 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 14.642105263157895) internal successors, (1391), 96 states have internal predecessors, (1391), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 925 [2025-03-17 15:36:32,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:32,110 INFO L225 Difference]: With dead ends: 1515 [2025-03-17 15:36:32,110 INFO L226 Difference]: Without dead ends: 1514 [2025-03-17 15:36:32,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1894 GetRequests, 1754 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2025-03-17 15:36:32,114 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 530 mSDsluCounter, 13488 mSDsCounter, 0 mSdLazyCounter, 24811 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 13824 SdHoareTripleChecker+Invalid, 24859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 24811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:32,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 13824 Invalid, 24859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 24811 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2025-03-17 15:36:32,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2025-03-17 15:36:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1514. [2025-03-17 15:36:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1418 states have (on average 1.0007052186177716) internal successors, (1419), 1418 states have internal predecessors, (1419), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-17 15:36:32,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 1607 transitions. [2025-03-17 15:36:32,151 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 1607 transitions. Word has length 925 [2025-03-17 15:36:32,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:32,152 INFO L471 AbstractCegarLoop]: Abstraction has 1514 states and 1607 transitions. [2025-03-17 15:36:32,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 14.642105263157895) internal successors, (1391), 96 states have internal predecessors, (1391), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-17 15:36:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 1607 transitions. [2025-03-17 15:36:32,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1886 [2025-03-17 15:36:32,178 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:32,178 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2025-03-17 15:36:32,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-17 15:36:32,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-03-17 15:36:32,379 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:36:32,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:32,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1282610095, now seen corresponding path program 6 times [2025-03-17 15:36:32,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:32,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331241979] [2025-03-17 15:36:32,380 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:36:32,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:32,416 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1885 statements into 95 equivalence classes. [2025-03-17 15:36:33,233 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 1885 of 1885 statements. [2025-03-17 15:36:33,233 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-17 15:36:33,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:33,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [974513571] [2025-03-17 15:36:33,241 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:36:33,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:33,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:33,242 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) [2025-03-17 15:36:33,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-17 15:36:33,325 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1885 statements into 95 equivalence classes.