./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench/hard2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/hard2.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 966f2b433cfe84d90040e5149c3cdda56fb59546e621a76bee869282a92c61d4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 10:49:16,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 10:49:16,927 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 10:49:16,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 10:49:16,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 10:49:16,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 10:49:16,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 10:49:16,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 10:49:16,954 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 10:49:16,954 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 10:49:16,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 10:49:16,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 10:49:16,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 10:49:16,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 10:49:16,955 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 10:49:16,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:49:16,956 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 10:49:16,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 10:49:16,956 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 -> 966f2b433cfe84d90040e5149c3cdda56fb59546e621a76bee869282a92c61d4 [2025-03-04 10:49:17,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 10:49:17,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 10:49:17,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 10:49:17,181 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 10:49:17,181 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 10:49:17,182 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/hard2.c [2025-03-04 10:49:18,348 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1454c024/5905af52d36a46b59f4b62f497dba57e/FLAGa2b266fe5 [2025-03-04 10:49:18,539 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 10:49:18,541 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/hard2.c [2025-03-04 10:49:18,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1454c024/5905af52d36a46b59f4b62f497dba57e/FLAGa2b266fe5 [2025-03-04 10:49:18,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1454c024/5905af52d36a46b59f4b62f497dba57e [2025-03-04 10:49:18,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 10:49:18,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 10:49:18,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 10:49:18,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 10:49:18,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 10:49:18,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59354560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18, skipping insertion in model container [2025-03-04 10:49:18,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,587 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 10:49:18,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:49:18,703 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 10:49:18,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:49:18,724 INFO L204 MainTranslator]: Completed translation [2025-03-04 10:49:18,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18 WrapperNode [2025-03-04 10:49:18,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 10:49:18,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 10:49:18,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 10:49:18,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 10:49:18,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,755 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2025-03-04 10:49:18,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 10:49:18,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 10:49:18,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 10:49:18,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 10:49:18,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,766 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,778 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-03-04 10:49:18,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,782 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 10:49:18,786 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 10:49:18,786 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 10:49:18,786 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 10:49:18,787 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (1/1) ... [2025-03-04 10:49:18,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:49:18,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:18,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 10:49:18,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 10:49:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 10:49:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 10:49:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 10:49:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 10:49:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 10:49:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 10:49:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 10:49:18,878 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 10:49:18,879 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 10:49:19,085 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2025-03-04 10:49:19,086 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 10:49:19,093 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 10:49:19,095 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 10:49:19,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:49:19 BoogieIcfgContainer [2025-03-04 10:49:19,096 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 10:49:19,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 10:49:19,098 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 10:49:19,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 10:49:19,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:49:18" (1/3) ... [2025-03-04 10:49:19,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6136ffe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:49:19, skipping insertion in model container [2025-03-04 10:49:19,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:49:18" (2/3) ... [2025-03-04 10:49:19,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6136ffe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:49:19, skipping insertion in model container [2025-03-04 10:49:19,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:49:19" (3/3) ... [2025-03-04 10:49:19,103 INFO L128 eAbstractionObserver]: Analyzing ICFG hard2.c [2025-03-04 10:49:19,112 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 10:49:19,113 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard2.c that has 2 procedures, 70 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2025-03-04 10:49:19,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 10:49:19,163 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;@2b9e7304, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 10:49:19,164 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2025-03-04 10:49:19,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 38 states have (on average 1.763157894736842) internal successors, (67), 61 states have internal predecessors, (67), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-04 10:49:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 10:49:19,172 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:19,172 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 10:49:19,172 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:19,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:19,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2985005, now seen corresponding path program 1 times [2025-03-04 10:49:19,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:19,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580227154] [2025-03-04 10:49:19,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:19,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:19,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 10:49:19,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 10:49:19,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:19,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:49:19,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:19,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580227154] [2025-03-04 10:49:19,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580227154] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:19,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:19,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:49:19,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240692574] [2025-03-04 10:49:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:19,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 10:49:19,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:19,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 10:49:19,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 10:49:19,284 INFO L87 Difference]: Start difference. First operand has 70 states, 38 states have (on average 1.763157894736842) internal successors, (67), 61 states have internal predecessors, (67), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 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) [2025-03-04 10:49:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:19,303 INFO L93 Difference]: Finished difference Result 137 states and 166 transitions. [2025-03-04 10:49:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 10:49:19,304 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 [2025-03-04 10:49:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:19,308 INFO L225 Difference]: With dead ends: 137 [2025-03-04 10:49:19,309 INFO L226 Difference]: Without dead ends: 62 [2025-03-04 10:49:19,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 10:49:19,314 INFO L435 NwaCegarLoop]: 77 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, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:19,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:49:19,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2025-03-04 10:49:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2025-03-04 10:49:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 32 states have (on average 1.8125) internal successors, (58), 55 states have internal predecessors, (58), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 10:49:19,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2025-03-04 10:49:19,344 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 4 [2025-03-04 10:49:19,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:19,344 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2025-03-04 10:49:19,344 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) [2025-03-04 10:49:19,344 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2025-03-04 10:49:19,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 10:49:19,345 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:19,345 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:19,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 10:49:19,346 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:19,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:19,346 INFO L85 PathProgramCache]: Analyzing trace with hash 189541410, now seen corresponding path program 1 times [2025-03-04 10:49:19,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:19,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461098787] [2025-03-04 10:49:19,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:19,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:19,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 10:49:19,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 10:49:19,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:19,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:19,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133336836] [2025-03-04 10:49:19,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:19,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:19,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:19,365 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:19,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 10:49:19,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 10:49:19,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 10:49:19,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:19,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:19,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:49:19,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:19,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:49:19,468 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:19,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:19,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461098787] [2025-03-04 10:49:19,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:19,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133336836] [2025-03-04 10:49:19,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133336836] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:19,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:19,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:49:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745926614] [2025-03-04 10:49:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:19,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:49:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:19,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:49:19,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:19,472 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:49:19,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:19,560 INFO L93 Difference]: Finished difference Result 131 states and 152 transitions. [2025-03-04 10:49:19,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:49:19,563 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2025-03-04 10:49:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:19,564 INFO L225 Difference]: With dead ends: 131 [2025-03-04 10:49:19,564 INFO L226 Difference]: Without dead ends: 83 [2025-03-04 10:49:19,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:19,565 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 15 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:19,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 90 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:19,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-04 10:49:19,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2025-03-04 10:49:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 69 states have internal predecessors, (79), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 10:49:19,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 99 transitions. [2025-03-04 10:49:19,575 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 99 transitions. Word has length 13 [2025-03-04 10:49:19,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:19,576 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 99 transitions. [2025-03-04 10:49:19,576 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:49:19,576 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 99 transitions. [2025-03-04 10:49:19,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 10:49:19,576 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:19,576 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:19,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 10:49:19,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:19,779 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:19,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:19,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2003324920, now seen corresponding path program 1 times [2025-03-04 10:49:19,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:19,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776046432] [2025-03-04 10:49:19,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:19,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:19,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 10:49:19,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 10:49:19,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:19,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:19,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1205828609] [2025-03-04 10:49:19,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:19,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:19,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:19,806 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:19,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 10:49:19,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 10:49:19,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 10:49:19,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:19,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:19,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:49:19,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 10:49:19,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:19,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:19,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776046432] [2025-03-04 10:49:19,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:19,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205828609] [2025-03-04 10:49:19,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205828609] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:19,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:19,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:49:19,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922223235] [2025-03-04 10:49:19,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:19,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:49:19,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:19,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:49:19,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:19,878 INFO L87 Difference]: Start difference. First operand 81 states and 99 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 10:49:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:19,930 INFO L93 Difference]: Finished difference Result 115 states and 142 transitions. [2025-03-04 10:49:19,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:49:19,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2025-03-04 10:49:19,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:19,933 INFO L225 Difference]: With dead ends: 115 [2025-03-04 10:49:19,933 INFO L226 Difference]: Without dead ends: 111 [2025-03-04 10:49:19,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:19,934 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:19,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 84 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:49:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2025-03-04 10:49:19,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 97. [2025-03-04 10:49:19,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 83 states have internal predecessors, (101), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 10:49:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 125 transitions. [2025-03-04 10:49:19,949 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 125 transitions. Word has length 21 [2025-03-04 10:49:19,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:19,949 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 125 transitions. [2025-03-04 10:49:19,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 10:49:19,950 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 125 transitions. [2025-03-04 10:49:19,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 10:49:19,950 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:19,950 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:19,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 10:49:20,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-04 10:49:20,151 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:20,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:20,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2003324960, now seen corresponding path program 1 times [2025-03-04 10:49:20,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:20,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954943080] [2025-03-04 10:49:20,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:20,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:20,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 10:49:20,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 10:49:20,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:20,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 10:49:20,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:20,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954943080] [2025-03-04 10:49:20,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954943080] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:20,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:20,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:49:20,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926437636] [2025-03-04 10:49:20,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:20,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:49:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:20,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:49:20,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:20,233 INFO L87 Difference]: Start difference. First operand 97 states and 125 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 10:49:20,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:20,294 INFO L93 Difference]: Finished difference Result 105 states and 130 transitions. [2025-03-04 10:49:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:49:20,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2025-03-04 10:49:20,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:20,296 INFO L225 Difference]: With dead ends: 105 [2025-03-04 10:49:20,296 INFO L226 Difference]: Without dead ends: 103 [2025-03-04 10:49:20,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:20,297 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 14 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:20,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 103 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:20,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-04 10:49:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2025-03-04 10:49:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.65) internal successors, (99), 83 states have internal predecessors, (99), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 10:49:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 123 transitions. [2025-03-04 10:49:20,304 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 123 transitions. Word has length 21 [2025-03-04 10:49:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:20,304 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 123 transitions. [2025-03-04 10:49:20,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 10:49:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 123 transitions. [2025-03-04 10:49:20,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-04 10:49:20,304 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:20,304 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:20,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 10:49:20,304 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:20,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:20,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1049899926, now seen corresponding path program 1 times [2025-03-04 10:49:20,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:20,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689634935] [2025-03-04 10:49:20,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:20,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:20,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 10:49:20,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 10:49:20,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:20,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:20,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286578111] [2025-03-04 10:49:20,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:20,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:20,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:20,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:20,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 10:49:20,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 10:49:20,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 10:49:20,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:20,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:20,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:49:20,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:20,446 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 10:49:20,446 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:20,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:20,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689634935] [2025-03-04 10:49:20,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:20,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286578111] [2025-03-04 10:49:20,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286578111] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:20,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:20,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:49:20,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632041841] [2025-03-04 10:49:20,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:20,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:49:20,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:20,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:49:20,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:20,447 INFO L87 Difference]: Start difference. First operand 97 states and 123 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 10:49:20,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:20,495 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2025-03-04 10:49:20,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:49:20,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2025-03-04 10:49:20,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:20,496 INFO L225 Difference]: With dead ends: 109 [2025-03-04 10:49:20,496 INFO L226 Difference]: Without dead ends: 107 [2025-03-04 10:49:20,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:20,497 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 33 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:20,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 76 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:49:20,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2025-03-04 10:49:20,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 98. [2025-03-04 10:49:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 61 states have (on average 1.6065573770491803) internal successors, (98), 84 states have internal predecessors, (98), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 10:49:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 122 transitions. [2025-03-04 10:49:20,504 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 122 transitions. Word has length 23 [2025-03-04 10:49:20,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:20,505 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 122 transitions. [2025-03-04 10:49:20,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 10:49:20,505 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 122 transitions. [2025-03-04 10:49:20,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-04 10:49:20,505 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:20,506 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:20,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 10:49:20,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:20,706 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:20,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:20,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1812840653, now seen corresponding path program 1 times [2025-03-04 10:49:20,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:20,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375949910] [2025-03-04 10:49:20,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:20,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:20,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 10:49:20,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 10:49:20,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:20,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 10:49:20,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:20,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375949910] [2025-03-04 10:49:20,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375949910] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:20,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:20,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 10:49:20,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878196970] [2025-03-04 10:49:20,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:20,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:49:20,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:20,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:49:20,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:49:20,800 INFO L87 Difference]: Start difference. First operand 98 states and 122 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 10:49:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:20,993 INFO L93 Difference]: Finished difference Result 108 states and 134 transitions. [2025-03-04 10:49:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:49:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2025-03-04 10:49:20,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:20,994 INFO L225 Difference]: With dead ends: 108 [2025-03-04 10:49:20,994 INFO L226 Difference]: Without dead ends: 107 [2025-03-04 10:49:20,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:49:20,995 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 69 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:20,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 111 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:49:20,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2025-03-04 10:49:21,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 102. [2025-03-04 10:49:21,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 65 states have (on average 1.5846153846153845) internal successors, (103), 88 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-04 10:49:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2025-03-04 10:49:21,005 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 24 [2025-03-04 10:49:21,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:21,005 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2025-03-04 10:49:21,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 10:49:21,006 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2025-03-04 10:49:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-04 10:49:21,006 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:21,006 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:21,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 10:49:21,006 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:21,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:21,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2105046383, now seen corresponding path program 1 times [2025-03-04 10:49:21,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:21,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188273909] [2025-03-04 10:49:21,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:21,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:21,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 10:49:21,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 10:49:21,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:21,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:21,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [331226451] [2025-03-04 10:49:21,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:21,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:21,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:21,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:21,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 10:49:21,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 10:49:21,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 10:49:21,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:21,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:21,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:49:21,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-04 10:49:21,137 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:21,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:21,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188273909] [2025-03-04 10:49:21,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:21,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331226451] [2025-03-04 10:49:21,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331226451] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:21,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:21,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:49:21,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952024749] [2025-03-04 10:49:21,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:21,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:49:21,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:21,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:49:21,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:49:21,138 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:49:21,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:21,203 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2025-03-04 10:49:21,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:49:21,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2025-03-04 10:49:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:21,204 INFO L225 Difference]: With dead ends: 116 [2025-03-04 10:49:21,206 INFO L226 Difference]: Without dead ends: 107 [2025-03-04 10:49:21,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:49:21,206 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 45 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:21,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 83 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:21,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2025-03-04 10:49:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2025-03-04 10:49:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 91 states have internal predecessors, (105), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 10:49:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 133 transitions. [2025-03-04 10:49:21,226 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 133 transitions. Word has length 35 [2025-03-04 10:49:21,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:21,227 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 133 transitions. [2025-03-04 10:49:21,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:49:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 133 transitions. [2025-03-04 10:49:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-04 10:49:21,228 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:21,228 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:21,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:21,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:21,429 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:21,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:21,429 INFO L85 PathProgramCache]: Analyzing trace with hash 831928462, now seen corresponding path program 1 times [2025-03-04 10:49:21,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:21,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071304835] [2025-03-04 10:49:21,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:21,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 10:49:21,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 10:49:21,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:21,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:21,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043159897] [2025-03-04 10:49:21,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:21,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:21,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:21,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:21,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 10:49:21,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 10:49:21,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 10:49:21,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:21,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:21,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:49:21,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-04 10:49:21,532 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:21,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:21,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071304835] [2025-03-04 10:49:21,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:21,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043159897] [2025-03-04 10:49:21,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043159897] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:21,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:21,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-04 10:49:21,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276069283] [2025-03-04 10:49:21,694 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:21,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:49:21,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:21,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:49:21,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:49:21,695 INFO L87 Difference]: Start difference. First operand 107 states and 133 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:49:21,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:21,774 INFO L93 Difference]: Finished difference Result 178 states and 233 transitions. [2025-03-04 10:49:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:49:21,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2025-03-04 10:49:21,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:21,775 INFO L225 Difference]: With dead ends: 178 [2025-03-04 10:49:21,775 INFO L226 Difference]: Without dead ends: 174 [2025-03-04 10:49:21,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:49:21,776 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 56 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:21,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 93 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:21,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-03-04 10:49:21,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 162. [2025-03-04 10:49:21,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 118 states have (on average 1.4661016949152543) internal successors, (173), 137 states have internal predecessors, (173), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:49:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 219 transitions. [2025-03-04 10:49:21,787 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 219 transitions. Word has length 36 [2025-03-04 10:49:21,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:21,788 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 219 transitions. [2025-03-04 10:49:21,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:49:21,788 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 219 transitions. [2025-03-04 10:49:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-04 10:49:21,788 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:21,789 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:21,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 10:49:21,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:21,989 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:21,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash 960202988, now seen corresponding path program 1 times [2025-03-04 10:49:21,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:21,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169422939] [2025-03-04 10:49:21,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:21,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:21,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 10:49:21,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 10:49:21,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:21,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:22,085 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-04 10:49:22,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:22,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169422939] [2025-03-04 10:49:22,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169422939] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:22,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:22,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 10:49:22,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413795084] [2025-03-04 10:49:22,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:22,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:49:22,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:22,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:49:22,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:49:22,087 INFO L87 Difference]: Start difference. First operand 162 states and 219 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:49:22,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:22,169 INFO L93 Difference]: Finished difference Result 167 states and 223 transitions. [2025-03-04 10:49:22,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:49:22,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2025-03-04 10:49:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:22,171 INFO L225 Difference]: With dead ends: 167 [2025-03-04 10:49:22,171 INFO L226 Difference]: Without dead ends: 153 [2025-03-04 10:49:22,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:49:22,172 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 17 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:22,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 126 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:22,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-03-04 10:49:22,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2025-03-04 10:49:22,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 111 states have (on average 1.4864864864864864) internal successors, (165), 130 states have internal predecessors, (165), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-03-04 10:49:22,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 207 transitions. [2025-03-04 10:49:22,187 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 207 transitions. Word has length 41 [2025-03-04 10:49:22,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:22,187 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 207 transitions. [2025-03-04 10:49:22,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:49:22,187 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 207 transitions. [2025-03-04 10:49:22,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-04 10:49:22,191 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:22,191 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:22,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 10:49:22,191 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:22,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash 433126509, now seen corresponding path program 1 times [2025-03-04 10:49:22,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:22,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118614271] [2025-03-04 10:49:22,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:22,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:22,195 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 10:49:22,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 10:49:22,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:22,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:22,255 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 10:49:22,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:22,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118614271] [2025-03-04 10:49:22,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118614271] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:22,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982839573] [2025-03-04 10:49:22,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:22,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:22,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:22,257 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:22,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 10:49:22,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 10:49:22,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 10:49:22,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:22,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:22,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:49:22,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 10:49:22,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:22,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982839573] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:22,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:22,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-04 10:49:22,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459944006] [2025-03-04 10:49:22,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:22,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:49:22,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:22,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:49:22,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:49:22,317 INFO L87 Difference]: Start difference. First operand 153 states and 207 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 10:49:22,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:22,379 INFO L93 Difference]: Finished difference Result 232 states and 324 transitions. [2025-03-04 10:49:22,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:49:22,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2025-03-04 10:49:22,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:22,381 INFO L225 Difference]: With dead ends: 232 [2025-03-04 10:49:22,381 INFO L226 Difference]: Without dead ends: 230 [2025-03-04 10:49:22,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:49:22,382 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 41 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:22,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 118 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:49:22,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2025-03-04 10:49:22,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 210. [2025-03-04 10:49:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 161 states have (on average 1.4906832298136645) internal successors, (240), 179 states have internal predecessors, (240), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-04 10:49:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 298 transitions. [2025-03-04 10:49:22,395 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 298 transitions. Word has length 43 [2025-03-04 10:49:22,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:22,396 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 298 transitions. [2025-03-04 10:49:22,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 10:49:22,396 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 298 transitions. [2025-03-04 10:49:22,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-04 10:49:22,399 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:22,399 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:22,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 10:49:22,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:22,604 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:22,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:22,604 INFO L85 PathProgramCache]: Analyzing trace with hash 542019913, now seen corresponding path program 1 times [2025-03-04 10:49:22,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:22,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128502372] [2025-03-04 10:49:22,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:22,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:22,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 10:49:22,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 10:49:22,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:22,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 10:49:22,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:22,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128502372] [2025-03-04 10:49:22,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128502372] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:22,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703082434] [2025-03-04 10:49:22,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:22,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:22,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:22,666 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:22,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 10:49:22,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 10:49:22,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 10:49:22,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:22,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:22,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:49:22,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:22,721 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 10:49:22,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:22,764 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-04 10:49:22,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703082434] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:49:22,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:49:22,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-04 10:49:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783235494] [2025-03-04 10:49:22,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:22,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:49:22,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:22,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:49:22,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:49:22,766 INFO L87 Difference]: Start difference. First operand 210 states and 298 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 10:49:22,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:22,885 INFO L93 Difference]: Finished difference Result 347 states and 487 transitions. [2025-03-04 10:49:22,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:49:22,886 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), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 44 [2025-03-04 10:49:22,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:22,888 INFO L225 Difference]: With dead ends: 347 [2025-03-04 10:49:22,888 INFO L226 Difference]: Without dead ends: 345 [2025-03-04 10:49:22,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:49:22,888 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:22,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 225 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2025-03-04 10:49:22,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 302. [2025-03-04 10:49:22,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 237 states have (on average 1.489451476793249) internal successors, (353), 255 states have internal predecessors, (353), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 10:49:22,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 443 transitions. [2025-03-04 10:49:22,904 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 443 transitions. Word has length 44 [2025-03-04 10:49:22,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:22,904 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 443 transitions. [2025-03-04 10:49:22,904 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), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 10:49:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 443 transitions. [2025-03-04 10:49:22,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-03-04 10:49:22,905 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:22,905 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-04 10:49:22,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 10:49:23,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:23,109 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:23,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1277151393, now seen corresponding path program 2 times [2025-03-04 10:49:23,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:23,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343497498] [2025-03-04 10:49:23,110 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:23,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:23,114 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 2 equivalence classes. [2025-03-04 10:49:23,120 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 10:49:23,120 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:49:23,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:23,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1573331283] [2025-03-04 10:49:23,121 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:23,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:23,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:23,123 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:23,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 10:49:23,142 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 2 equivalence classes. [2025-03-04 10:49:23,156 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 10:49:23,156 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:49:23,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:23,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:49:23,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 10:49:23,241 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:23,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:23,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343497498] [2025-03-04 10:49:23,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:23,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573331283] [2025-03-04 10:49:23,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573331283] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:23,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:23,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-04 10:49:23,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205943749] [2025-03-04 10:49:23,340 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:23,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:49:23,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:23,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:49:23,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:49:23,341 INFO L87 Difference]: Start difference. First operand 302 states and 443 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-04 10:49:23,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:23,459 INFO L93 Difference]: Finished difference Result 391 states and 571 transitions. [2025-03-04 10:49:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:49:23,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2025-03-04 10:49:23,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:23,461 INFO L225 Difference]: With dead ends: 391 [2025-03-04 10:49:23,461 INFO L226 Difference]: Without dead ends: 387 [2025-03-04 10:49:23,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:49:23,462 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 63 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:23,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 130 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:23,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2025-03-04 10:49:23,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 302. [2025-03-04 10:49:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 237 states have (on average 1.481012658227848) internal successors, (351), 255 states have internal predecessors, (351), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 10:49:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 441 transitions. [2025-03-04 10:49:23,488 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 441 transitions. Word has length 58 [2025-03-04 10:49:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:23,488 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 441 transitions. [2025-03-04 10:49:23,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-04 10:49:23,488 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 441 transitions. [2025-03-04 10:49:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-04 10:49:23,489 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:23,489 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:23,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:23,689 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,SelfDestructingSolverStorable11 [2025-03-04 10:49:23,689 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:23,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:23,690 INFO L85 PathProgramCache]: Analyzing trace with hash 896225560, now seen corresponding path program 1 times [2025-03-04 10:49:23,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:23,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127416041] [2025-03-04 10:49:23,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:23,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:23,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-04 10:49:23,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 10:49:23,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:23,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 10:49:23,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:23,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127416041] [2025-03-04 10:49:23,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127416041] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:23,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:23,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:49:23,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404195266] [2025-03-04 10:49:23,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:23,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:49:23,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:23,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:49:23,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:23,724 INFO L87 Difference]: Start difference. First operand 302 states and 441 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:23,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:23,769 INFO L93 Difference]: Finished difference Result 302 states and 441 transitions. [2025-03-04 10:49:23,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:49:23,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 65 [2025-03-04 10:49:23,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:23,771 INFO L225 Difference]: With dead ends: 302 [2025-03-04 10:49:23,771 INFO L226 Difference]: Without dead ends: 301 [2025-03-04 10:49:23,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:49:23,771 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:23,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 92 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:49:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2025-03-04 10:49:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2025-03-04 10:49:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 237 states have (on average 1.4556962025316456) internal successors, (345), 254 states have internal predecessors, (345), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 10:49:23,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 435 transitions. [2025-03-04 10:49:23,785 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 435 transitions. Word has length 65 [2025-03-04 10:49:23,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:23,786 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 435 transitions. [2025-03-04 10:49:23,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:23,786 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 435 transitions. [2025-03-04 10:49:23,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-04 10:49:23,786 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:23,786 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:23,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 10:49:23,787 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:23,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:23,787 INFO L85 PathProgramCache]: Analyzing trace with hash 2013188571, now seen corresponding path program 1 times [2025-03-04 10:49:23,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:23,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501705090] [2025-03-04 10:49:23,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:23,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:23,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 10:49:23,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 10:49:23,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:23,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:23,898 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 10:49:23,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:23,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501705090] [2025-03-04 10:49:23,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501705090] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:23,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353489364] [2025-03-04 10:49:23,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:23,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:23,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:23,901 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:23,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 10:49:23,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 10:49:23,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 10:49:23,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:23,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:23,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:49:23,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 10:49:24,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:24,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353489364] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:24,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:24,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-04 10:49:24,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159988] [2025-03-04 10:49:24,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:24,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:49:24,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:24,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:49:24,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:49:24,045 INFO L87 Difference]: Start difference. First operand 301 states and 435 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-04 10:49:24,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:24,111 INFO L93 Difference]: Finished difference Result 322 states and 453 transitions. [2025-03-04 10:49:24,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:49:24,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2025-03-04 10:49:24,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:24,113 INFO L225 Difference]: With dead ends: 322 [2025-03-04 10:49:24,113 INFO L226 Difference]: Without dead ends: 321 [2025-03-04 10:49:24,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:49:24,114 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:24,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 95 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:24,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2025-03-04 10:49:24,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 301. [2025-03-04 10:49:24,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 237 states have (on average 1.4430379746835442) internal successors, (342), 254 states have internal predecessors, (342), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 10:49:24,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 432 transitions. [2025-03-04 10:49:24,135 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 432 transitions. Word has length 66 [2025-03-04 10:49:24,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:24,135 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 432 transitions. [2025-03-04 10:49:24,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-04 10:49:24,135 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 432 transitions. [2025-03-04 10:49:24,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-04 10:49:24,135 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:24,136 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:24,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 10:49:24,340 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,SelfDestructingSolverStorable13 [2025-03-04 10:49:24,340 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:24,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:24,340 INFO L85 PathProgramCache]: Analyzing trace with hash -2015663754, now seen corresponding path program 1 times [2025-03-04 10:49:24,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:24,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067676620] [2025-03-04 10:49:24,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:24,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-04 10:49:24,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-04 10:49:24,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:24,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:24,438 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 10:49:24,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:24,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067676620] [2025-03-04 10:49:24,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067676620] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:24,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307598400] [2025-03-04 10:49:24,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:24,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:24,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:24,440 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:24,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 10:49:24,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-04 10:49:24,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-04 10:49:24,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:24,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:24,476 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:49:24,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 10:49:24,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:24,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307598400] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:24,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:24,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-04 10:49:24,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766461451] [2025-03-04 10:49:24,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:24,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:49:24,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:24,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:49:24,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:49:24,606 INFO L87 Difference]: Start difference. First operand 301 states and 432 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:24,714 INFO L93 Difference]: Finished difference Result 321 states and 454 transitions. [2025-03-04 10:49:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:49:24,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2025-03-04 10:49:24,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:24,715 INFO L225 Difference]: With dead ends: 321 [2025-03-04 10:49:24,716 INFO L226 Difference]: Without dead ends: 320 [2025-03-04 10:49:24,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:49:24,716 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 52 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:24,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 89 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:24,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2025-03-04 10:49:24,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 310. [2025-03-04 10:49:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 246 states have (on average 1.4268292682926829) internal successors, (351), 263 states have internal predecessors, (351), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 10:49:24,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 441 transitions. [2025-03-04 10:49:24,737 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 441 transitions. Word has length 67 [2025-03-04 10:49:24,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:24,737 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 441 transitions. [2025-03-04 10:49:24,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:24,737 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 441 transitions. [2025-03-04 10:49:24,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-04 10:49:24,738 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:24,738 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:24,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:24,938 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,SelfDestructingSolverStorable14 [2025-03-04 10:49:24,938 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:24,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:24,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1938933049, now seen corresponding path program 1 times [2025-03-04 10:49:24,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:24,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342753426] [2025-03-04 10:49:24,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:24,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:24,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-04 10:49:24,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-04 10:49:24,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:24,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 10:49:25,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:25,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342753426] [2025-03-04 10:49:25,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342753426] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:25,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68360197] [2025-03-04 10:49:25,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:25,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:25,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:25,041 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:25,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 10:49:25,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-04 10:49:25,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-04 10:49:25,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:25,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:25,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:49:25,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:25,174 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 10:49:25,174 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:25,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68360197] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:25,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:25,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-04 10:49:25,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135061861] [2025-03-04 10:49:25,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:25,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:49:25,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:25,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:49:25,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:49:25,177 INFO L87 Difference]: Start difference. First operand 310 states and 441 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:25,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:25,259 INFO L93 Difference]: Finished difference Result 320 states and 448 transitions. [2025-03-04 10:49:25,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:49:25,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 68 [2025-03-04 10:49:25,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:25,261 INFO L225 Difference]: With dead ends: 320 [2025-03-04 10:49:25,261 INFO L226 Difference]: Without dead ends: 318 [2025-03-04 10:49:25,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:49:25,261 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 34 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:25,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 73 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:25,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2025-03-04 10:49:25,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2025-03-04 10:49:25,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 249 states have (on average 1.393574297188755) internal successors, (347), 266 states have internal predecessors, (347), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-03-04 10:49:25,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 437 transitions. [2025-03-04 10:49:25,280 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 437 transitions. Word has length 68 [2025-03-04 10:49:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:25,280 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 437 transitions. [2025-03-04 10:49:25,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 437 transitions. [2025-03-04 10:49:25,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-04 10:49:25,281 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:25,281 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:25,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:25,486 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,SelfDestructingSolverStorable15 [2025-03-04 10:49:25,486 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:25,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash -22617610, now seen corresponding path program 1 times [2025-03-04 10:49:25,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:25,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4138420] [2025-03-04 10:49:25,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:25,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:25,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-04 10:49:25,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-04 10:49:25,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:25,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:25,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1131326022] [2025-03-04 10:49:25,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:25,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:25,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:25,503 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:25,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 10:49:25,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-04 10:49:25,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-04 10:49:25,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:25,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:25,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:49:25,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 10:49:25,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:26,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:26,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4138420] [2025-03-04 10:49:26,129 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:26,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131326022] [2025-03-04 10:49:26,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131326022] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:26,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:26,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 10:49:26,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058562414] [2025-03-04 10:49:26,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:26,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:49:26,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:26,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:49:26,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:49:26,130 INFO L87 Difference]: Start difference. First operand 313 states and 437 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:26,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:26,231 INFO L93 Difference]: Finished difference Result 392 states and 561 transitions. [2025-03-04 10:49:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:49:26,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2025-03-04 10:49:26,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:26,233 INFO L225 Difference]: With dead ends: 392 [2025-03-04 10:49:26,233 INFO L226 Difference]: Without dead ends: 391 [2025-03-04 10:49:26,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:49:26,234 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 56 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:26,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 81 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:26,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2025-03-04 10:49:26,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 367. [2025-03-04 10:49:26,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 297 states have (on average 1.4175084175084176) internal successors, (421), 314 states have internal predecessors, (421), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-04 10:49:26,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 523 transitions. [2025-03-04 10:49:26,262 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 523 transitions. Word has length 69 [2025-03-04 10:49:26,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:26,263 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 523 transitions. [2025-03-04 10:49:26,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 523 transitions. [2025-03-04 10:49:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-04 10:49:26,263 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:26,263 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:26,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 10:49:26,464 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,SelfDestructingSolverStorable16 [2025-03-04 10:49:26,464 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:26,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:26,464 INFO L85 PathProgramCache]: Analyzing trace with hash -701145897, now seen corresponding path program 1 times [2025-03-04 10:49:26,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:26,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831466339] [2025-03-04 10:49:26,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:26,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:26,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-04 10:49:26,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-04 10:49:26,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:26,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:26,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553266796] [2025-03-04 10:49:26,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:26,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:26,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:26,482 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:26,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 10:49:26,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-04 10:49:26,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-04 10:49:26,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:26,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:26,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:49:26,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 10:49:26,651 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:27,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:27,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831466339] [2025-03-04 10:49:27,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:27,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553266796] [2025-03-04 10:49:27,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553266796] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:27,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:27,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-04 10:49:27,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764577075] [2025-03-04 10:49:27,019 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:27,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:49:27,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:27,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:49:27,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:49:27,020 INFO L87 Difference]: Start difference. First operand 367 states and 523 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:27,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:27,085 INFO L93 Difference]: Finished difference Result 372 states and 524 transitions. [2025-03-04 10:49:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:49:27,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2025-03-04 10:49:27,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:27,087 INFO L225 Difference]: With dead ends: 372 [2025-03-04 10:49:27,087 INFO L226 Difference]: Without dead ends: 369 [2025-03-04 10:49:27,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:49:27,087 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 65 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:27,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 53 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:49:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2025-03-04 10:49:27,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 365. [2025-03-04 10:49:27,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 297 states have (on average 1.34006734006734) internal successors, (398), 312 states have internal predecessors, (398), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-04 10:49:27,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 500 transitions. [2025-03-04 10:49:27,107 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 500 transitions. Word has length 70 [2025-03-04 10:49:27,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:27,107 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 500 transitions. [2025-03-04 10:49:27,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 500 transitions. [2025-03-04 10:49:27,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-04 10:49:27,108 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:27,108 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:27,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:27,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-04 10:49:27,312 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:27,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:27,312 INFO L85 PathProgramCache]: Analyzing trace with hash -260686316, now seen corresponding path program 1 times [2025-03-04 10:49:27,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:27,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831834239] [2025-03-04 10:49:27,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:27,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:27,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 10:49:27,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 10:49:27,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:27,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-04 10:49:27,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:27,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831834239] [2025-03-04 10:49:27,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831834239] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:27,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:27,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 10:49:27,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069009113] [2025-03-04 10:49:27,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:27,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:49:27,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:27,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:49:27,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:49:27,363 INFO L87 Difference]: Start difference. First operand 365 states and 500 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:27,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:27,505 INFO L93 Difference]: Finished difference Result 368 states and 501 transitions. [2025-03-04 10:49:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:49:27,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 71 [2025-03-04 10:49:27,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:27,507 INFO L225 Difference]: With dead ends: 368 [2025-03-04 10:49:27,507 INFO L226 Difference]: Without dead ends: 367 [2025-03-04 10:49:27,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:49:27,508 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 63 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:27,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 104 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:27,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2025-03-04 10:49:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 364. [2025-03-04 10:49:27,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 297 states have (on average 1.2895622895622896) internal successors, (383), 311 states have internal predecessors, (383), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-04 10:49:27,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 485 transitions. [2025-03-04 10:49:27,528 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 485 transitions. Word has length 71 [2025-03-04 10:49:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:27,528 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 485 transitions. [2025-03-04 10:49:27,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 485 transitions. [2025-03-04 10:49:27,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-04 10:49:27,529 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:27,529 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:27,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-04 10:49:27,529 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:27,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:27,530 INFO L85 PathProgramCache]: Analyzing trace with hash 508658805, now seen corresponding path program 1 times [2025-03-04 10:49:27,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:27,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324002738] [2025-03-04 10:49:27,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:27,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:27,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-04 10:49:27,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 10:49:27,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:27,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 10:49:27,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:27,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324002738] [2025-03-04 10:49:27,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324002738] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:27,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733949373] [2025-03-04 10:49:27,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:27,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:27,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:27,648 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:27,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 10:49:27,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-04 10:49:27,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-04 10:49:27,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:27,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:27,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 10:49:27,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:27,975 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 10:49:27,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:28,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733949373] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:28,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 10:49:28,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2025-03-04 10:49:28,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207122204] [2025-03-04 10:49:28,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:28,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 10:49:28,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:28,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 10:49:28,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2025-03-04 10:49:28,466 INFO L87 Difference]: Start difference. First operand 364 states and 485 transitions. Second operand has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-04 10:49:29,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:29,457 INFO L93 Difference]: Finished difference Result 653 states and 886 transitions. [2025-03-04 10:49:29,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-04 10:49:29,457 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 72 [2025-03-04 10:49:29,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:29,460 INFO L225 Difference]: With dead ends: 653 [2025-03-04 10:49:29,460 INFO L226 Difference]: Without dead ends: 644 [2025-03-04 10:49:29,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=353, Invalid=1287, Unknown=0, NotChecked=0, Total=1640 [2025-03-04 10:49:29,461 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 373 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:29,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 256 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 10:49:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2025-03-04 10:49:29,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 491. [2025-03-04 10:49:29,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 408 states have (on average 1.2769607843137254) internal successors, (521), 422 states have internal predecessors, (521), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-03-04 10:49:29,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 655 transitions. [2025-03-04 10:49:29,489 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 655 transitions. Word has length 72 [2025-03-04 10:49:29,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:29,489 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 655 transitions. [2025-03-04 10:49:29,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.4) internal successors, (66), 16 states have internal predecessors, (66), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-04 10:49:29,489 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 655 transitions. [2025-03-04 10:49:29,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-04 10:49:29,490 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:29,490 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:29,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-04 10:49:29,695 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 [2025-03-04 10:49:29,695 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:29,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:29,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2116536831, now seen corresponding path program 1 times [2025-03-04 10:49:29,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:29,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083779978] [2025-03-04 10:49:29,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:29,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:29,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-04 10:49:29,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-04 10:49:29,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:29,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:29,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476771311] [2025-03-04 10:49:29,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:29,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:29,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:29,711 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:29,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 10:49:29,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-04 10:49:29,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-04 10:49:29,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:29,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:29,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-04 10:49:29,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-03-04 10:49:29,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:30,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:30,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083779978] [2025-03-04 10:49:30,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:30,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476771311] [2025-03-04 10:49:30,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476771311] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:30,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:30,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 10:49:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150134411] [2025-03-04 10:49:30,280 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:30,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 10:49:30,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:30,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 10:49:30,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-04 10:49:30,281 INFO L87 Difference]: Start difference. First operand 491 states and 655 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-04 10:49:30,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:30,578 INFO L93 Difference]: Finished difference Result 514 states and 670 transitions. [2025-03-04 10:49:30,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 10:49:30,579 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2025-03-04 10:49:30,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:30,581 INFO L225 Difference]: With dead ends: 514 [2025-03-04 10:49:30,581 INFO L226 Difference]: Without dead ends: 396 [2025-03-04 10:49:30,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:49:30,582 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 12 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:30,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 153 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:49:30,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2025-03-04 10:49:30,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 394. [2025-03-04 10:49:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 323 states have (on average 1.2662538699690402) internal successors, (409), 337 states have internal predecessors, (409), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-03-04 10:49:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 519 transitions. [2025-03-04 10:49:30,603 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 519 transitions. Word has length 86 [2025-03-04 10:49:30,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:30,604 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 519 transitions. [2025-03-04 10:49:30,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-04 10:49:30,604 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 519 transitions. [2025-03-04 10:49:30,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-04 10:49:30,605 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:30,605 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:30,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:30,810 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 [2025-03-04 10:49:30,810 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:30,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:30,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1822604387, now seen corresponding path program 1 times [2025-03-04 10:49:30,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:30,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081834044] [2025-03-04 10:49:30,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:30,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:30,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 10:49:30,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 10:49:30,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:30,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:30,863 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-04 10:49:30,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:30,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081834044] [2025-03-04 10:49:30,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081834044] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:30,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:30,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 10:49:30,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016436796] [2025-03-04 10:49:30,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:30,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:49:30,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:30,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:49:30,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:49:30,864 INFO L87 Difference]: Start difference. First operand 394 states and 519 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 10:49:30,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:30,995 INFO L93 Difference]: Finished difference Result 397 states and 520 transitions. [2025-03-04 10:49:30,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:49:30,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 88 [2025-03-04 10:49:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:30,998 INFO L225 Difference]: With dead ends: 397 [2025-03-04 10:49:30,998 INFO L226 Difference]: Without dead ends: 366 [2025-03-04 10:49:30,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:49:31,000 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 26 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:31,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 167 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:31,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2025-03-04 10:49:31,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2025-03-04 10:49:31,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 296 states have (on average 1.2837837837837838) internal successors, (380), 309 states have internal predecessors, (380), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-04 10:49:31,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 482 transitions. [2025-03-04 10:49:31,020 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 482 transitions. Word has length 88 [2025-03-04 10:49:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:31,020 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 482 transitions. [2025-03-04 10:49:31,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 10:49:31,021 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 482 transitions. [2025-03-04 10:49:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-04 10:49:31,021 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:31,021 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1] [2025-03-04 10:49:31,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-04 10:49:31,021 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:31,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:31,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1559577107, now seen corresponding path program 1 times [2025-03-04 10:49:31,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:31,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358794674] [2025-03-04 10:49:31,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:31,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:31,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-04 10:49:31,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-04 10:49:31,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:31,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-04 10:49:31,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:31,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358794674] [2025-03-04 10:49:31,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358794674] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:31,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080229958] [2025-03-04 10:49:31,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:31,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:31,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:31,078 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:31,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 10:49:31,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-04 10:49:31,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-04 10:49:31,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:31,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:31,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:49:31,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-04 10:49:31,159 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:31,246 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-04 10:49:31,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080229958] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:49:31,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:49:31,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 10:49:31,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234898083] [2025-03-04 10:49:31,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:31,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 10:49:31,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:31,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 10:49:31,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:49:31,247 INFO L87 Difference]: Start difference. First operand 362 states and 482 transitions. Second operand has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-03-04 10:49:31,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:31,456 INFO L93 Difference]: Finished difference Result 741 states and 984 transitions. [2025-03-04 10:49:31,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 10:49:31,457 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 90 [2025-03-04 10:49:31,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:31,459 INFO L225 Difference]: With dead ends: 741 [2025-03-04 10:49:31,459 INFO L226 Difference]: Without dead ends: 739 [2025-03-04 10:49:31,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:49:31,460 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 185 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:31,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 339 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:49:31,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2025-03-04 10:49:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 500. [2025-03-04 10:49:31,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2878048780487805) internal successors, (528), 423 states have internal predecessors, (528), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-04 10:49:31,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 678 transitions. [2025-03-04 10:49:31,491 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 678 transitions. Word has length 90 [2025-03-04 10:49:31,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:31,491 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 678 transitions. [2025-03-04 10:49:31,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 11 states have internal predecessors, (70), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-03-04 10:49:31,492 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 678 transitions. [2025-03-04 10:49:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-04 10:49:31,492 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:31,492 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:31,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:31,693 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,SelfDestructingSolverStorable22 [2025-03-04 10:49:31,693 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:31,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:31,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1153943304, now seen corresponding path program 2 times [2025-03-04 10:49:31,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:31,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076626247] [2025-03-04 10:49:31,694 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:31,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:31,697 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 94 statements into 2 equivalence classes. [2025-03-04 10:49:31,706 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 94 of 94 statements. [2025-03-04 10:49:31,707 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:49:31,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:31,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1219204253] [2025-03-04 10:49:31,707 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:31,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:31,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:31,709 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:31,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 10:49:31,732 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 94 statements into 2 equivalence classes. [2025-03-04 10:49:31,748 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 94 of 94 statements. [2025-03-04 10:49:31,748 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:49:31,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:31,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-04 10:49:31,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-04 10:49:32,080 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:32,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076626247] [2025-03-04 10:49:32,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219204253] [2025-03-04 10:49:32,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219204253] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:32,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:32,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 10:49:32,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590012304] [2025-03-04 10:49:32,772 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:32,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 10:49:32,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:32,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 10:49:32,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2025-03-04 10:49:32,774 INFO L87 Difference]: Start difference. First operand 500 states and 678 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 10:49:33,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:33,170 INFO L93 Difference]: Finished difference Result 523 states and 707 transitions. [2025-03-04 10:49:33,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 10:49:33,171 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 94 [2025-03-04 10:49:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:33,174 INFO L225 Difference]: With dead ends: 523 [2025-03-04 10:49:33,174 INFO L226 Difference]: Without dead ends: 522 [2025-03-04 10:49:33,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2025-03-04 10:49:33,175 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 28 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:33,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 234 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:49:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2025-03-04 10:49:33,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 500. [2025-03-04 10:49:33,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 410 states have (on average 1.2853658536585366) internal successors, (527), 423 states have internal predecessors, (527), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-04 10:49:33,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 677 transitions. [2025-03-04 10:49:33,208 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 677 transitions. Word has length 94 [2025-03-04 10:49:33,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:33,208 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 677 transitions. [2025-03-04 10:49:33,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 10:49:33,208 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 677 transitions. [2025-03-04 10:49:33,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-04 10:49:33,209 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:33,209 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:33,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:33,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:33,413 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:33,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash 998320146, now seen corresponding path program 1 times [2025-03-04 10:49:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:33,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945388991] [2025-03-04 10:49:33,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:33,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:33,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-04 10:49:33,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-04 10:49:33,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:33,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:33,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:33,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945388991] [2025-03-04 10:49:33,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945388991] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:33,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541685710] [2025-03-04 10:49:33,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:33,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:33,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:33,500 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:33,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 10:49:33,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-04 10:49:33,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-04 10:49:33,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:33,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:33,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:49:33,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2025-03-04 10:49:33,647 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:33,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541685710] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:33,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:33,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-03-04 10:49:33,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299037694] [2025-03-04 10:49:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:33,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:49:33,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:33,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:49:33,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:49:33,648 INFO L87 Difference]: Start difference. First operand 500 states and 677 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:33,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:33,695 INFO L93 Difference]: Finished difference Result 505 states and 679 transitions. [2025-03-04 10:49:33,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:49:33,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 107 [2025-03-04 10:49:33,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:33,697 INFO L225 Difference]: With dead ends: 505 [2025-03-04 10:49:33,697 INFO L226 Difference]: Without dead ends: 500 [2025-03-04 10:49:33,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:49:33,697 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:33,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:49:33,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2025-03-04 10:49:33,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 498. [2025-03-04 10:49:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 408 states have (on average 1.267156862745098) internal successors, (517), 421 states have internal predecessors, (517), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-04 10:49:33,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 667 transitions. [2025-03-04 10:49:33,739 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 667 transitions. Word has length 107 [2025-03-04 10:49:33,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:33,739 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 667 transitions. [2025-03-04 10:49:33,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:33,740 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 667 transitions. [2025-03-04 10:49:33,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-04 10:49:33,741 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:33,741 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:33,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 10:49:33,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:33,942 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:33,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:33,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1216384850, now seen corresponding path program 2 times [2025-03-04 10:49:33,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:33,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456365702] [2025-03-04 10:49:33,943 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:33,948 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-03-04 10:49:33,955 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 108 of 108 statements. [2025-03-04 10:49:33,955 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:49:33,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:34,089 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:34,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:34,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456365702] [2025-03-04 10:49:34,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456365702] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:34,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052709536] [2025-03-04 10:49:34,089 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:34,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:34,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:34,091 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:34,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 10:49:34,112 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-03-04 10:49:34,127 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 108 of 108 statements. [2025-03-04 10:49:34,127 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:49:34,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:34,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:49:34,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:34,186 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:34,186 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:34,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052709536] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:49:34,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:49:34,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2025-03-04 10:49:34,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292333566] [2025-03-04 10:49:34,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:34,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:49:34,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:34,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:49:34,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:49:34,290 INFO L87 Difference]: Start difference. First operand 498 states and 667 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2025-03-04 10:49:34,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:34,376 INFO L93 Difference]: Finished difference Result 507 states and 673 transitions. [2025-03-04 10:49:34,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:49:34,377 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 108 [2025-03-04 10:49:34,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:34,379 INFO L225 Difference]: With dead ends: 507 [2025-03-04 10:49:34,379 INFO L226 Difference]: Without dead ends: 500 [2025-03-04 10:49:34,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 211 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:49:34,379 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 53 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:34,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 171 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:34,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2025-03-04 10:49:34,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 498. [2025-03-04 10:49:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 408 states have (on average 1.2573529411764706) internal successors, (513), 421 states have internal predecessors, (513), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-03-04 10:49:34,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 663 transitions. [2025-03-04 10:49:34,406 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 663 transitions. Word has length 108 [2025-03-04 10:49:34,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:34,407 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 663 transitions. [2025-03-04 10:49:34,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2025-03-04 10:49:34,407 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 663 transitions. [2025-03-04 10:49:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-04 10:49:34,408 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:34,408 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2025-03-04 10:49:34,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-04 10:49:34,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:34,609 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:34,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:34,610 INFO L85 PathProgramCache]: Analyzing trace with hash -78805054, now seen corresponding path program 2 times [2025-03-04 10:49:34,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:34,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771677186] [2025-03-04 10:49:34,610 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:34,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:34,614 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 10:49:34,621 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 10:49:34,621 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:49:34,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:34,684 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 10:49:34,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:34,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771677186] [2025-03-04 10:49:34,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771677186] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:34,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823050158] [2025-03-04 10:49:34,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:34,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:34,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:34,687 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:34,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 10:49:34,707 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 10:49:34,724 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 10:49:34,724 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:49:34,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:34,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:49:34,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 10:49:34,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 10:49:34,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823050158] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:49:34,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:49:34,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-03-04 10:49:34,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448882472] [2025-03-04 10:49:34,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:34,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 10:49:34,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:34,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 10:49:34,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:49:34,870 INFO L87 Difference]: Start difference. First operand 498 states and 663 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2025-03-04 10:49:35,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:35,141 INFO L93 Difference]: Finished difference Result 1138 states and 1520 transitions. [2025-03-04 10:49:35,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 10:49:35,141 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 110 [2025-03-04 10:49:35,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:35,146 INFO L225 Difference]: With dead ends: 1138 [2025-03-04 10:49:35,146 INFO L226 Difference]: Without dead ends: 1136 [2025-03-04 10:49:35,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:49:35,147 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 389 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:35,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 357 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:49:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2025-03-04 10:49:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 516. [2025-03-04 10:49:35,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 420 states have (on average 1.2428571428571429) internal successors, (522), 433 states have internal predecessors, (522), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 10:49:35,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 684 transitions. [2025-03-04 10:49:35,181 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 684 transitions. Word has length 110 [2025-03-04 10:49:35,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:35,181 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 684 transitions. [2025-03-04 10:49:35,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2025-03-04 10:49:35,181 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 684 transitions. [2025-03-04 10:49:35,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-04 10:49:35,183 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:35,183 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:35,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-04 10:49:35,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-04 10:49:35,384 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:35,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:35,384 INFO L85 PathProgramCache]: Analyzing trace with hash -622572574, now seen corresponding path program 1 times [2025-03-04 10:49:35,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:35,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460803801] [2025-03-04 10:49:35,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:35,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:35,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-04 10:49:35,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 10:49:35,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:35,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:35,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:35,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460803801] [2025-03-04 10:49:35,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460803801] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:35,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318117482] [2025-03-04 10:49:35,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:35,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:35,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:35,525 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:35,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 10:49:35,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-04 10:49:35,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 10:49:35,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:35,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:35,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 10:49:35,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:35,809 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:35,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:36,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318117482] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:49:36,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:49:36,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2025-03-04 10:49:36,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677529664] [2025-03-04 10:49:36,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:36,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-04 10:49:36,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:36,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-04 10:49:36,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2025-03-04 10:49:36,077 INFO L87 Difference]: Start difference. First operand 516 states and 684 transitions. Second operand has 20 states, 19 states have (on average 7.157894736842105) internal successors, (136), 20 states have internal predecessors, (136), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-04 10:49:36,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:36,516 INFO L93 Difference]: Finished difference Result 681 states and 908 transitions. [2025-03-04 10:49:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-04 10:49:36,516 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.157894736842105) internal successors, (136), 20 states have internal predecessors, (136), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 110 [2025-03-04 10:49:36,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:36,518 INFO L225 Difference]: With dead ends: 681 [2025-03-04 10:49:36,518 INFO L226 Difference]: Without dead ends: 596 [2025-03-04 10:49:36,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2025-03-04 10:49:36,519 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 313 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:36,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 395 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:49:36,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-03-04 10:49:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 517. [2025-03-04 10:49:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 417 states have (on average 1.275779376498801) internal successors, (532), 430 states have internal predecessors, (532), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-04 10:49:36,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 702 transitions. [2025-03-04 10:49:36,549 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 702 transitions. Word has length 110 [2025-03-04 10:49:36,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:36,549 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 702 transitions. [2025-03-04 10:49:36,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.157894736842105) internal successors, (136), 20 states have internal predecessors, (136), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-04 10:49:36,549 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 702 transitions. [2025-03-04 10:49:36,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-04 10:49:36,550 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:36,550 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:36,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:36,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-04 10:49:36,751 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:36,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:36,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1881715572, now seen corresponding path program 1 times [2025-03-04 10:49:36,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:36,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43904982] [2025-03-04 10:49:36,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:36,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:36,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-04 10:49:36,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-04 10:49:36,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:36,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2025-03-04 10:49:36,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:36,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43904982] [2025-03-04 10:49:36,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43904982] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:36,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792343949] [2025-03-04 10:49:36,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:36,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:36,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:36,907 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:36,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 10:49:36,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-04 10:49:36,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-04 10:49:36,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:36,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:36,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 10:49:36,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 22 proven. 17 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:37,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:38,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792343949] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:49:38,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:49:38,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2025-03-04 10:49:38,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392238046] [2025-03-04 10:49:38,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:38,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-04 10:49:38,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:38,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-04 10:49:38,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2025-03-04 10:49:38,685 INFO L87 Difference]: Start difference. First operand 517 states and 702 transitions. Second operand has 21 states, 20 states have (on average 7.3) internal successors, (146), 21 states have internal predecessors, (146), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-03-04 10:49:38,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:38,984 INFO L93 Difference]: Finished difference Result 709 states and 978 transitions. [2025-03-04 10:49:38,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 10:49:38,985 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 7.3) internal successors, (146), 21 states have internal predecessors, (146), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 115 [2025-03-04 10:49:38,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:38,988 INFO L225 Difference]: With dead ends: 709 [2025-03-04 10:49:38,988 INFO L226 Difference]: Without dead ends: 708 [2025-03-04 10:49:38,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2025-03-04 10:49:38,990 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 235 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:38,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 242 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:49:38,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2025-03-04 10:49:39,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 516. [2025-03-04 10:49:39,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 417 states have (on average 1.2661870503597121) internal successors, (528), 429 states have internal predecessors, (528), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-04 10:49:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 698 transitions. [2025-03-04 10:49:39,036 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 698 transitions. Word has length 115 [2025-03-04 10:49:39,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:39,036 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 698 transitions. [2025-03-04 10:49:39,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 7.3) internal successors, (146), 21 states have internal predecessors, (146), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-03-04 10:49:39,037 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 698 transitions. [2025-03-04 10:49:39,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-04 10:49:39,037 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:39,037 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:39,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:39,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-04 10:49:39,238 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:39,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:39,239 INFO L85 PathProgramCache]: Analyzing trace with hash -222590629, now seen corresponding path program 3 times [2025-03-04 10:49:39,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:39,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112220813] [2025-03-04 10:49:39,239 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:49:39,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:39,243 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 116 statements into 9 equivalence classes. [2025-03-04 10:49:39,269 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 116 of 116 statements. [2025-03-04 10:49:39,270 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-04 10:49:39,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:39,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [958521180] [2025-03-04 10:49:39,271 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:49:39,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:39,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:39,272 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:39,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 10:49:39,294 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 116 statements into 9 equivalence classes. [2025-03-04 10:49:39,306 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 38 of 116 statements. [2025-03-04 10:49:39,307 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 10:49:39,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:39,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 10:49:39,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 39 proven. 4 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2025-03-04 10:49:39,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:50,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:50,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112220813] [2025-03-04 10:49:50,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:50,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958521180] [2025-03-04 10:49:50,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958521180] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:50,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:50,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 10:49:50,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928781279] [2025-03-04 10:49:50,039 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:50,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 10:49:50,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:50,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 10:49:50,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=179, Unknown=2, NotChecked=0, Total=240 [2025-03-04 10:49:50,040 INFO L87 Difference]: Start difference. First operand 516 states and 698 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:50,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:50,365 INFO L93 Difference]: Finished difference Result 535 states and 714 transitions. [2025-03-04 10:49:50,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 10:49:50,365 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 116 [2025-03-04 10:49:50,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:50,367 INFO L225 Difference]: With dead ends: 535 [2025-03-04 10:49:50,367 INFO L226 Difference]: Without dead ends: 534 [2025-03-04 10:49:50,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=99, Invalid=279, Unknown=2, NotChecked=0, Total=380 [2025-03-04 10:49:50,368 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 71 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:50,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 95 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:49:50,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2025-03-04 10:49:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 516. [2025-03-04 10:49:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 417 states have (on average 1.2517985611510791) internal successors, (522), 429 states have internal predecessors, (522), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-04 10:49:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 692 transitions. [2025-03-04 10:49:50,399 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 692 transitions. Word has length 116 [2025-03-04 10:49:50,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:50,399 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 692 transitions. [2025-03-04 10:49:50,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:50,399 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 692 transitions. [2025-03-04 10:49:50,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-04 10:49:50,400 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:50,400 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 10:49:50,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:50,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:50,600 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:50,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:50,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1796359429, now seen corresponding path program 1 times [2025-03-04 10:49:50,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:50,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320610740] [2025-03-04 10:49:50,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:50,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:50,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-04 10:49:50,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-04 10:49:50,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:50,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:50,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:50,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320610740] [2025-03-04 10:49:50,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320610740] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:50,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058164583] [2025-03-04 10:49:50,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:50,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:50,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:50,782 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:50,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 10:49:50,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-04 10:49:50,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-04 10:49:50,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:50,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:50,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 10:49:50,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:51,078 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:51,078 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:52,151 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:52,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058164583] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:49:52,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:49:52,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2025-03-04 10:49:52,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129977754] [2025-03-04 10:49:52,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:52,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-04 10:49:52,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:52,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-04 10:49:52,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2025-03-04 10:49:52,152 INFO L87 Difference]: Start difference. First operand 516 states and 692 transitions. Second operand has 22 states, 21 states have (on average 7.333333333333333) internal successors, (154), 22 states have internal predecessors, (154), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-04 10:49:53,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:53,079 INFO L93 Difference]: Finished difference Result 763 states and 998 transitions. [2025-03-04 10:49:53,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 10:49:53,079 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.333333333333333) internal successors, (154), 22 states have internal predecessors, (154), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 116 [2025-03-04 10:49:53,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:53,081 INFO L225 Difference]: With dead ends: 763 [2025-03-04 10:49:53,081 INFO L226 Difference]: Without dead ends: 762 [2025-03-04 10:49:53,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 10:49:53,082 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 343 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:53,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 449 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 10:49:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2025-03-04 10:49:53,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 651. [2025-03-04 10:49:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 536 states have (on average 1.2406716417910448) internal successors, (665), 548 states have internal predecessors, (665), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2025-03-04 10:49:53,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 867 transitions. [2025-03-04 10:49:53,123 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 867 transitions. Word has length 116 [2025-03-04 10:49:53,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:53,124 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 867 transitions. [2025-03-04 10:49:53,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.333333333333333) internal successors, (154), 22 states have internal predecessors, (154), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-03-04 10:49:53,124 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 867 transitions. [2025-03-04 10:49:53,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-04 10:49:53,125 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:53,125 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 10:49:53,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:53,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:53,326 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:53,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash 147432564, now seen corresponding path program 2 times [2025-03-04 10:49:53,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:53,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110268149] [2025-03-04 10:49:53,326 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:53,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:53,330 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-03-04 10:49:53,343 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 117 of 117 statements. [2025-03-04 10:49:53,344 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:49:53,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:53,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663542593] [2025-03-04 10:49:53,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:49:53,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:53,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:53,347 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:53,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 10:49:53,370 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-03-04 10:49:53,377 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 18 of 117 statements. [2025-03-04 10:49:53,377 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 10:49:53,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:53,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:49:53,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2025-03-04 10:49:53,444 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:53,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:53,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110268149] [2025-03-04 10:49:53,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:53,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663542593] [2025-03-04 10:49:53,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663542593] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:53,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:53,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 10:49:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298934365] [2025-03-04 10:49:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:53,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:49:53,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:53,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:49:53,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:49:53,445 INFO L87 Difference]: Start difference. First operand 651 states and 867 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:53,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:53,541 INFO L93 Difference]: Finished difference Result 651 states and 867 transitions. [2025-03-04 10:49:53,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:49:53,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 117 [2025-03-04 10:49:53,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:53,546 INFO L225 Difference]: With dead ends: 651 [2025-03-04 10:49:53,546 INFO L226 Difference]: Without dead ends: 650 [2025-03-04 10:49:53,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:49:53,547 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 62 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:53,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 58 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:53,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2025-03-04 10:49:53,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 608. [2025-03-04 10:49:53,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 500 states have (on average 1.206) internal successors, (603), 511 states have internal predecessors, (603), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2025-03-04 10:49:53,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 793 transitions. [2025-03-04 10:49:53,599 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 793 transitions. Word has length 117 [2025-03-04 10:49:53,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:53,600 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 793 transitions. [2025-03-04 10:49:53,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:49:53,600 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 793 transitions. [2025-03-04 10:49:53,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-03-04 10:49:53,601 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:53,601 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 10:49:53,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-04 10:49:53,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2025-03-04 10:49:53,802 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:53,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:53,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1588016841, now seen corresponding path program 4 times [2025-03-04 10:49:53,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:53,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132958204] [2025-03-04 10:49:53,802 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 10:49:53,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:53,807 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 120 statements into 2 equivalence classes. [2025-03-04 10:49:53,818 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 120 of 120 statements. [2025-03-04 10:49:53,819 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 10:49:53,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:53,993 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:53,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:53,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132958204] [2025-03-04 10:49:53,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132958204] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:53,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143797218] [2025-03-04 10:49:53,994 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 10:49:53,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:53,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:53,995 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:53,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-04 10:49:54,017 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 120 statements into 2 equivalence classes. [2025-03-04 10:49:54,039 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 120 of 120 statements. [2025-03-04 10:49:54,040 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 10:49:54,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:54,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 10:49:54,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-04 10:49:54,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:54,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143797218] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:54,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 10:49:54,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 22 [2025-03-04 10:49:54,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720862040] [2025-03-04 10:49:54,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:54,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-04 10:49:54,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:54,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-04 10:49:54,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2025-03-04 10:49:54,644 INFO L87 Difference]: Start difference. First operand 608 states and 793 transitions. Second operand has 23 states, 22 states have (on average 5.090909090909091) internal successors, (112), 23 states have internal predecessors, (112), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2025-03-04 10:49:55,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:55,172 INFO L93 Difference]: Finished difference Result 690 states and 894 transitions. [2025-03-04 10:49:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 10:49:55,172 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.090909090909091) internal successors, (112), 23 states have internal predecessors, (112), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 120 [2025-03-04 10:49:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:55,174 INFO L225 Difference]: With dead ends: 690 [2025-03-04 10:49:55,174 INFO L226 Difference]: Without dead ends: 683 [2025-03-04 10:49:55,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 120 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=200, Invalid=1282, Unknown=0, NotChecked=0, Total=1482 [2025-03-04 10:49:55,175 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 216 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:55,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 290 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:49:55,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2025-03-04 10:49:55,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 637. [2025-03-04 10:49:55,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 525 states have (on average 1.2019047619047618) internal successors, (631), 536 states have internal predecessors, (631), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2025-03-04 10:49:55,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 829 transitions. [2025-03-04 10:49:55,226 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 829 transitions. Word has length 120 [2025-03-04 10:49:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:55,226 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 829 transitions. [2025-03-04 10:49:55,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.090909090909091) internal successors, (112), 23 states have internal predecessors, (112), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2025-03-04 10:49:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 829 transitions. [2025-03-04 10:49:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-04 10:49:55,227 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:55,228 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:55,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-04 10:49:55,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-03-04 10:49:55,432 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:55,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:55,432 INFO L85 PathProgramCache]: Analyzing trace with hash -661251491, now seen corresponding path program 1 times [2025-03-04 10:49:55,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:55,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735147696] [2025-03-04 10:49:55,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:55,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:55,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-04 10:49:55,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-04 10:49:55,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:55,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:55,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679821198] [2025-03-04 10:49:55,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:55,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:55,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:55,451 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:55,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-04 10:49:55,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-04 10:49:55,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-04 10:49:55,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:55,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:55,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:49:55,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2025-03-04 10:49:55,574 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:49:55,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735147696] [2025-03-04 10:49:55,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679821198] [2025-03-04 10:49:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679821198] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:49:55,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:49:55,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:49:55,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775240399] [2025-03-04 10:49:55,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:49:55,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:49:55,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:55,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:49:55,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:49:55,575 INFO L87 Difference]: Start difference. First operand 637 states and 829 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 10:49:55,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:55,631 INFO L93 Difference]: Finished difference Result 637 states and 829 transitions. [2025-03-04 10:49:55,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:49:55,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 123 [2025-03-04 10:49:55,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:55,633 INFO L225 Difference]: With dead ends: 637 [2025-03-04 10:49:55,633 INFO L226 Difference]: Without dead ends: 635 [2025-03-04 10:49:55,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:49:55,633 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 31 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:55,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 50 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:49:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2025-03-04 10:49:55,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 510. [2025-03-04 10:49:55,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 416 states have (on average 1.1610576923076923) internal successors, (483), 425 states have internal predecessors, (483), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-03-04 10:49:55,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 649 transitions. [2025-03-04 10:49:55,669 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 649 transitions. Word has length 123 [2025-03-04 10:49:55,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:55,669 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 649 transitions. [2025-03-04 10:49:55,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 10:49:55,669 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 649 transitions. [2025-03-04 10:49:55,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-04 10:49:55,670 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:55,670 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:49:55,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-03-04 10:49:55,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:55,870 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:55,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:55,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2082711994, now seen corresponding path program 1 times [2025-03-04 10:49:55,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:55,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474016416] [2025-03-04 10:49:55,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:55,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:55,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-04 10:49:55,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-04 10:49:55,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:55,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:55,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888367265] [2025-03-04 10:49:55,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:55,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:55,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:55,888 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:55,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-04 10:49:55,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-04 10:49:55,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-04 10:49:55,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:55,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:55,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-04 10:49:55,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 10:49:56,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:56,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:56,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474016416] [2025-03-04 10:49:56,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:56,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888367265] [2025-03-04 10:49:56,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888367265] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:56,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:56,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 10:49:56,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727035671] [2025-03-04 10:49:56,403 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:56,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 10:49:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:56,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 10:49:56,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:49:56,404 INFO L87 Difference]: Start difference. First operand 510 states and 649 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 10:49:56,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:56,684 INFO L93 Difference]: Finished difference Result 513 states and 651 transitions. [2025-03-04 10:49:56,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 10:49:56,684 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 130 [2025-03-04 10:49:56,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:56,686 INFO L225 Difference]: With dead ends: 513 [2025-03-04 10:49:56,686 INFO L226 Difference]: Without dead ends: 511 [2025-03-04 10:49:56,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:49:56,686 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:56,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 202 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:49:56,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2025-03-04 10:49:56,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 510. [2025-03-04 10:49:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 416 states have (on average 1.1586538461538463) internal successors, (482), 425 states have internal predecessors, (482), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-03-04 10:49:56,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 648 transitions. [2025-03-04 10:49:56,726 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 648 transitions. Word has length 130 [2025-03-04 10:49:56,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:56,726 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 648 transitions. [2025-03-04 10:49:56,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 10:49:56,726 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 648 transitions. [2025-03-04 10:49:56,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-04 10:49:56,727 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:56,727 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 10:49:56,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:56,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:56,928 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:56,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:56,928 INFO L85 PathProgramCache]: Analyzing trace with hash 158241601, now seen corresponding path program 3 times [2025-03-04 10:49:56,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:56,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776607524] [2025-03-04 10:49:56,928 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:49:56,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:56,933 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 134 statements into 9 equivalence classes. [2025-03-04 10:49:56,952 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 134 of 134 statements. [2025-03-04 10:49:56,952 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-04 10:49:56,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:49:56,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146216443] [2025-03-04 10:49:56,952 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:49:56,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:56,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:56,954 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:56,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-04 10:49:56,978 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 134 statements into 9 equivalence classes. [2025-03-04 10:49:56,991 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 52 of 134 statements. [2025-03-04 10:49:56,991 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-04 10:49:56,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:56,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 10:49:56,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:57,133 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 74 proven. 33 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2025-03-04 10:49:57,133 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:57,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:57,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776607524] [2025-03-04 10:49:57,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:49:57,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146216443] [2025-03-04 10:49:57,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146216443] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:57,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:49:57,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 10:49:57,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158156816] [2025-03-04 10:49:57,289 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:57,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 10:49:57,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:57,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 10:49:57,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:49:57,289 INFO L87 Difference]: Start difference. First operand 510 states and 648 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-04 10:49:57,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:49:57,509 INFO L93 Difference]: Finished difference Result 513 states and 650 transitions. [2025-03-04 10:49:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 10:49:57,510 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 134 [2025-03-04 10:49:57,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:49:57,511 INFO L225 Difference]: With dead ends: 513 [2025-03-04 10:49:57,511 INFO L226 Difference]: Without dead ends: 511 [2025-03-04 10:49:57,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2025-03-04 10:49:57,512 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 104 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:49:57,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 85 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:49:57,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2025-03-04 10:49:57,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 508. [2025-03-04 10:49:57,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 415 states have (on average 1.1542168674698796) internal successors, (479), 423 states have internal predecessors, (479), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-03-04 10:49:57,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 645 transitions. [2025-03-04 10:49:57,556 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 645 transitions. Word has length 134 [2025-03-04 10:49:57,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:49:57,557 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 645 transitions. [2025-03-04 10:49:57,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-04 10:49:57,557 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 645 transitions. [2025-03-04 10:49:57,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-04 10:49:57,558 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:49:57,558 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 10:49:57,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-03-04 10:49:57,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:57,762 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:49:57,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:49:57,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2081580236, now seen corresponding path program 1 times [2025-03-04 10:49:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:49:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113607192] [2025-03-04 10:49:57,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:57,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:49:57,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-04 10:49:57,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-04 10:49:57,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:57,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:58,005 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 10:49:58,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:49:58,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113607192] [2025-03-04 10:49:58,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113607192] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:49:58,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858059099] [2025-03-04 10:49:58,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:49:58,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:49:58,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:49:58,008 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:49:58,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-04 10:49:58,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-04 10:49:58,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-04 10:49:58,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:49:58,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:49:58,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-04 10:49:58,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:49:58,395 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 10:49:58,395 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:49:59,958 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 10:49:59,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858059099] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:49:59,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:49:59,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 10] total 34 [2025-03-04 10:49:59,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086534006] [2025-03-04 10:49:59,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:49:59,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-03-04 10:49:59,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:49:59,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-03-04 10:49:59,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2025-03-04 10:49:59,959 INFO L87 Difference]: Start difference. First operand 508 states and 645 transitions. Second operand has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 35 states have internal predecessors, (196), 18 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 18 states have call predecessors, (45), 18 states have call successors, (45) [2025-03-04 10:50:01,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:50:01,810 INFO L93 Difference]: Finished difference Result 726 states and 933 transitions. [2025-03-04 10:50:01,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-04 10:50:01,810 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 35 states have internal predecessors, (196), 18 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 18 states have call predecessors, (45), 18 states have call successors, (45) Word has length 140 [2025-03-04 10:50:01,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:50:01,812 INFO L225 Difference]: With dead ends: 726 [2025-03-04 10:50:01,812 INFO L226 Difference]: Without dead ends: 724 [2025-03-04 10:50:01,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=854, Invalid=2116, Unknown=0, NotChecked=0, Total=2970 [2025-03-04 10:50:01,813 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 535 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-04 10:50:01,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 448 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-04 10:50:01,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2025-03-04 10:50:01,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 602. [2025-03-04 10:50:01,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 499 states have (on average 1.1683366733466933) internal successors, (583), 507 states have internal predecessors, (583), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-04 10:50:01,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 769 transitions. [2025-03-04 10:50:01,869 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 769 transitions. Word has length 140 [2025-03-04 10:50:01,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:50:01,869 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 769 transitions. [2025-03-04 10:50:01,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 5.764705882352941) internal successors, (196), 35 states have internal predecessors, (196), 18 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 18 states have call predecessors, (45), 18 states have call successors, (45) [2025-03-04 10:50:01,870 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 769 transitions. [2025-03-04 10:50:01,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-04 10:50:01,870 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:50:01,871 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 10:50:01,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-04 10:50:02,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-04 10:50:02,071 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:50:02,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:50:02,071 INFO L85 PathProgramCache]: Analyzing trace with hash -108627510, now seen corresponding path program 5 times [2025-03-04 10:50:02,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:50:02,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532497670] [2025-03-04 10:50:02,071 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 10:50:02,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:50:02,076 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 142 statements into 9 equivalence classes. [2025-03-04 10:50:02,092 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 142 of 142 statements. [2025-03-04 10:50:02,092 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-03-04 10:50:02,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:50:02,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [790357118] [2025-03-04 10:50:02,093 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 10:50:02,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:02,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:50:02,095 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:50:02,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-04 10:50:02,121 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 142 statements into 9 equivalence classes. [2025-03-04 10:50:02,147 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 142 of 142 statements. [2025-03-04 10:50:02,147 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-03-04 10:50:02,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:02,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-04 10:50:02,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:50:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-04 10:50:02,693 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:50:03,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:50:03,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532497670] [2025-03-04 10:50:03,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:50:03,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790357118] [2025-03-04 10:50:03,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790357118] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:03,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:50:03,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2025-03-04 10:50:03,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695151856] [2025-03-04 10:50:03,209 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:50:03,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-04 10:50:03,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:50:03,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-04 10:50:03,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=460, Unknown=0, NotChecked=0, Total=552 [2025-03-04 10:50:03,210 INFO L87 Difference]: Start difference. First operand 602 states and 769 transitions. Second operand has 19 states, 18 states have (on average 3.611111111111111) internal successors, (65), 19 states have internal predecessors, (65), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-04 10:50:03,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:50:03,850 INFO L93 Difference]: Finished difference Result 793 states and 1006 transitions. [2025-03-04 10:50:03,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-04 10:50:03,851 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.611111111111111) internal successors, (65), 19 states have internal predecessors, (65), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 142 [2025-03-04 10:50:03,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:50:03,852 INFO L225 Difference]: With dead ends: 793 [2025-03-04 10:50:03,852 INFO L226 Difference]: Without dead ends: 645 [2025-03-04 10:50:03,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2025-03-04 10:50:03,853 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 45 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 10:50:03,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 360 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 10:50:03,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2025-03-04 10:50:03,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 611. [2025-03-04 10:50:03,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 508 states have (on average 1.1633858267716535) internal successors, (591), 516 states have internal predecessors, (591), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-04 10:50:03,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 777 transitions. [2025-03-04 10:50:03,908 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 777 transitions. Word has length 142 [2025-03-04 10:50:03,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:50:03,908 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 777 transitions. [2025-03-04 10:50:03,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.611111111111111) internal successors, (65), 19 states have internal predecessors, (65), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-04 10:50:03,909 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 777 transitions. [2025-03-04 10:50:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-04 10:50:03,909 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:50:03,909 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 10:50:03,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-04 10:50:04,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-04 10:50:04,110 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:50:04,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:50:04,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1478345259, now seen corresponding path program 1 times [2025-03-04 10:50:04,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:50:04,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548822860] [2025-03-04 10:50:04,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:50:04,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:50:04,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-04 10:50:04,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-04 10:50:04,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:50:04,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:04,317 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 10:50:04,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:50:04,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548822860] [2025-03-04 10:50:04,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548822860] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:04,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20816542] [2025-03-04 10:50:04,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:50:04,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:04,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:50:04,320 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:50:04,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-04 10:50:04,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-04 10:50:04,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-04 10:50:04,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:50:04,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:04,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-04 10:50:04,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:50:04,840 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 14 proven. 66 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 10:50:04,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:50:05,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20816542] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:05,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 10:50:05,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2025-03-04 10:50:05,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364863390] [2025-03-04 10:50:05,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 10:50:05,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-04 10:50:05,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:50:05,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-04 10:50:05,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2025-03-04 10:50:05,086 INFO L87 Difference]: Start difference. First operand 611 states and 777 transitions. Second operand has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 25 states have internal predecessors, (136), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2025-03-04 10:50:06,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:50:06,121 INFO L93 Difference]: Finished difference Result 756 states and 950 transitions. [2025-03-04 10:50:06,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-04 10:50:06,121 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 25 states have internal predecessors, (136), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 142 [2025-03-04 10:50:06,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:50:06,123 INFO L225 Difference]: With dead ends: 756 [2025-03-04 10:50:06,123 INFO L226 Difference]: Without dead ends: 755 [2025-03-04 10:50:06,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=431, Invalid=2221, Unknown=0, NotChecked=0, Total=2652 [2025-03-04 10:50:06,124 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 510 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 10:50:06,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 487 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 10:50:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2025-03-04 10:50:06,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 629. [2025-03-04 10:50:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 524 states have (on average 1.1603053435114503) internal successors, (608), 532 states have internal predecessors, (608), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2025-03-04 10:50:06,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 798 transitions. [2025-03-04 10:50:06,189 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 798 transitions. Word has length 142 [2025-03-04 10:50:06,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:50:06,190 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 798 transitions. [2025-03-04 10:50:06,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.666666666666667) internal successors, (136), 25 states have internal predecessors, (136), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2025-03-04 10:50:06,190 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 798 transitions. [2025-03-04 10:50:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-04 10:50:06,191 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:50:06,191 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:50:06,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2025-03-04 10:50:06,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-04 10:50:06,391 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:50:06,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:50:06,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1041545202, now seen corresponding path program 1 times [2025-03-04 10:50:06,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:50:06,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050469030] [2025-03-04 10:50:06,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:50:06,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:50:06,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-04 10:50:06,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-04 10:50:06,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:50:06,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:06,491 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 10:50:06,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:50:06,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050469030] [2025-03-04 10:50:06,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050469030] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:06,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000339931] [2025-03-04 10:50:06,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:50:06,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:06,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:50:06,494 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:50:06,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-04 10:50:06,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-04 10:50:06,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-04 10:50:06,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:50:06,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:06,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:50:06,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:50:06,623 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 10:50:06,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:50:06,782 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 48 proven. 32 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 10:50:06,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000339931] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:50:06,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:50:06,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2025-03-04 10:50:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550597278] [2025-03-04 10:50:06,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:50:06,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:50:06,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:50:06,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:50:06,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:50:06,783 INFO L87 Difference]: Start difference. First operand 629 states and 798 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2025-03-04 10:50:06,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:50:06,926 INFO L93 Difference]: Finished difference Result 764 states and 965 transitions. [2025-03-04 10:50:06,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:50:06,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 153 [2025-03-04 10:50:06,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:50:06,928 INFO L225 Difference]: With dead ends: 764 [2025-03-04 10:50:06,928 INFO L226 Difference]: Without dead ends: 758 [2025-03-04 10:50:06,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 301 SyntacticMatches, 8 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:50:06,928 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 49 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:50:06,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 221 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:50:06,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2025-03-04 10:50:06,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 737. [2025-03-04 10:50:06,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 616 states have (on average 1.150974025974026) internal successors, (709), 624 states have internal predecessors, (709), 111 states have call successors, (111), 1 states have call predecessors, (111), 1 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2025-03-04 10:50:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 931 transitions. [2025-03-04 10:50:07,000 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 931 transitions. Word has length 153 [2025-03-04 10:50:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:50:07,000 INFO L471 AbstractCegarLoop]: Abstraction has 737 states and 931 transitions. [2025-03-04 10:50:07,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2025-03-04 10:50:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 931 transitions. [2025-03-04 10:50:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-04 10:50:07,001 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:50:07,001 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:50:07,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-03-04 10:50:07,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-04 10:50:07,201 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:50:07,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:50:07,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1947199247, now seen corresponding path program 2 times [2025-03-04 10:50:07,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:50:07,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473413055] [2025-03-04 10:50:07,202 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:50:07,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:50:07,206 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 153 statements into 2 equivalence classes. [2025-03-04 10:50:07,210 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 153 of 153 statements. [2025-03-04 10:50:07,210 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:50:07,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 37 proven. 54 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-04 10:50:07,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:50:07,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473413055] [2025-03-04 10:50:07,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473413055] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:07,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50756854] [2025-03-04 10:50:07,405 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:50:07,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:07,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:50:07,407 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:50:07,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-04 10:50:07,430 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 153 statements into 2 equivalence classes. [2025-03-04 10:50:07,459 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 153 of 153 statements. [2025-03-04 10:50:07,459 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:50:07,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:07,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-04 10:50:07,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:50:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-04 10:50:07,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:50:07,785 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 69 proven. 22 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-04 10:50:07,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50756854] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:50:07,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:50:07,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 6] total 14 [2025-03-04 10:50:07,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087595720] [2025-03-04 10:50:07,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:50:07,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 10:50:07,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:50:07,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 10:50:07,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-04 10:50:07,786 INFO L87 Difference]: Start difference. First operand 737 states and 931 transitions. Second operand has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 10 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 10 states have call predecessors, (40), 10 states have call successors, (40) [2025-03-04 10:50:08,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:50:08,009 INFO L93 Difference]: Finished difference Result 749 states and 939 transitions. [2025-03-04 10:50:08,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:50:08,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 10 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 10 states have call predecessors, (40), 10 states have call successors, (40) Word has length 153 [2025-03-04 10:50:08,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:50:08,011 INFO L225 Difference]: With dead ends: 749 [2025-03-04 10:50:08,011 INFO L226 Difference]: Without dead ends: 571 [2025-03-04 10:50:08,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 300 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-04 10:50:08,012 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 13 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:50:08,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 295 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:50:08,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2025-03-04 10:50:08,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2025-03-04 10:50:08,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 470 states have (on average 1.1595744680851063) internal successors, (545), 478 states have internal predecessors, (545), 91 states have call successors, (91), 1 states have call predecessors, (91), 1 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2025-03-04 10:50:08,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 727 transitions. [2025-03-04 10:50:08,074 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 727 transitions. Word has length 153 [2025-03-04 10:50:08,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:50:08,074 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 727 transitions. [2025-03-04 10:50:08,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.285714285714286) internal successors, (158), 14 states have internal predecessors, (158), 10 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 10 states have call predecessors, (40), 10 states have call successors, (40) [2025-03-04 10:50:08,074 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 727 transitions. [2025-03-04 10:50:08,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-04 10:50:08,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:50:08,075 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 10:50:08,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2025-03-04 10:50:08,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:08,276 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:50:08,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:50:08,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2132392251, now seen corresponding path program 1 times [2025-03-04 10:50:08,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:50:08,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952032430] [2025-03-04 10:50:08,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:50:08,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:50:08,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 10:50:08,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 10:50:08,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:50:08,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 26 proven. 60 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 10:50:08,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:50:08,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952032430] [2025-03-04 10:50:08,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952032430] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:08,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209056714] [2025-03-04 10:50:08,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:50:08,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:08,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:50:08,420 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:50:08,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-04 10:50:08,442 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-04 10:50:08,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 10:50:08,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:50:08,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:08,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:50:08,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:50:08,522 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2025-03-04 10:50:08,522 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:50:08,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209056714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:50:08,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:50:08,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-03-04 10:50:08,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153028729] [2025-03-04 10:50:08,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:50:08,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:50:08,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:50:08,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:50:08,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:50:08,523 INFO L87 Difference]: Start difference. First operand 571 states and 727 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 10:50:08,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:50:08,659 INFO L93 Difference]: Finished difference Result 571 states and 727 transitions. [2025-03-04 10:50:08,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:50:08,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 156 [2025-03-04 10:50:08,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:50:08,661 INFO L225 Difference]: With dead ends: 571 [2025-03-04 10:50:08,661 INFO L226 Difference]: Without dead ends: 570 [2025-03-04 10:50:08,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 156 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:50:08,662 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 26 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:50:08,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 79 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:50:08,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2025-03-04 10:50:08,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 548. [2025-03-04 10:50:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 454 states have (on average 1.1431718061674008) internal successors, (519), 461 states have internal predecessors, (519), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-04 10:50:08,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 689 transitions. [2025-03-04 10:50:08,729 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 689 transitions. Word has length 156 [2025-03-04 10:50:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:50:08,729 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 689 transitions. [2025-03-04 10:50:08,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 10:50:08,729 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 689 transitions. [2025-03-04 10:50:08,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-04 10:50:08,730 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:50:08,730 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 10:50:08,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2025-03-04 10:50:08,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2025-03-04 10:50:08,934 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:50:08,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:50:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1196761026, now seen corresponding path program 1 times [2025-03-04 10:50:08,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:50:08,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163917667] [2025-03-04 10:50:08,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:50:08,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:50:08,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-04 10:50:08,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-04 10:50:08,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:50:08,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:09,237 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 10:50:09,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:50:09,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163917667] [2025-03-04 10:50:09,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163917667] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:09,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625785508] [2025-03-04 10:50:09,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:50:09,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:09,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:50:09,240 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:50:09,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-04 10:50:09,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-04 10:50:09,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-04 10:50:09,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:50:09,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:09,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-04 10:50:09,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:50:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 10:50:09,611 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:50:11,991 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 10:50:11,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625785508] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:50:11,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:50:11,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 8] total 29 [2025-03-04 10:50:11,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105349760] [2025-03-04 10:50:11,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:50:11,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-04 10:50:11,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:50:11,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-04 10:50:11,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2025-03-04 10:50:11,993 INFO L87 Difference]: Start difference. First operand 548 states and 689 transitions. Second operand has 30 states, 29 states have (on average 7.275862068965517) internal successors, (211), 30 states have internal predecessors, (211), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2025-03-04 10:50:14,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:50:14,651 INFO L93 Difference]: Finished difference Result 1075 states and 1333 transitions. [2025-03-04 10:50:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-04 10:50:14,651 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 7.275862068965517) internal successors, (211), 30 states have internal predecessors, (211), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) Word has length 160 [2025-03-04 10:50:14,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:50:14,654 INFO L225 Difference]: With dead ends: 1075 [2025-03-04 10:50:14,654 INFO L226 Difference]: Without dead ends: 1074 [2025-03-04 10:50:14,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1113, Invalid=1967, Unknown=0, NotChecked=0, Total=3080 [2025-03-04 10:50:14,655 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 584 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-04 10:50:14,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 691 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-04 10:50:14,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2025-03-04 10:50:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 868. [2025-03-04 10:50:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 732 states have (on average 1.133879781420765) internal successors, (830), 739 states have internal predecessors, (830), 127 states have call successors, (127), 1 states have call predecessors, (127), 1 states have return successors, (127), 127 states have call predecessors, (127), 127 states have call successors, (127) [2025-03-04 10:50:14,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1084 transitions. [2025-03-04 10:50:14,805 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1084 transitions. Word has length 160 [2025-03-04 10:50:14,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:50:14,805 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1084 transitions. [2025-03-04 10:50:14,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 7.275862068965517) internal successors, (211), 30 states have internal predecessors, (211), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2025-03-04 10:50:14,805 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1084 transitions. [2025-03-04 10:50:14,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-04 10:50:14,806 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:50:14,806 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-04 10:50:14,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2025-03-04 10:50:15,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:15,007 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:50:15,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:50:15,007 INFO L85 PathProgramCache]: Analyzing trace with hash -171234787, now seen corresponding path program 6 times [2025-03-04 10:50:15,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:50:15,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908506405] [2025-03-04 10:50:15,007 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 10:50:15,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:50:15,012 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 164 statements into 12 equivalence classes. [2025-03-04 10:50:15,039 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 10:50:15,039 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-03-04 10:50:15,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:50:15,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871312632] [2025-03-04 10:50:15,040 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 10:50:15,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:15,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:50:15,042 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:50:15,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-04 10:50:15,064 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 164 statements into 12 equivalence classes. [2025-03-04 10:50:15,081 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 81 of 164 statements. [2025-03-04 10:50:15,082 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-03-04 10:50:15,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:15,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 10:50:15,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:50:15,844 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 54 proven. 26 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2025-03-04 10:50:15,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:50:25,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:50:25,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908506405] [2025-03-04 10:50:25,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:50:25,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871312632] [2025-03-04 10:50:25,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871312632] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:25,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:50:25,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 10:50:25,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075649350] [2025-03-04 10:50:25,331 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:50:25,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 10:50:25,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:50:25,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 10:50:25,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=243, Unknown=2, NotChecked=0, Total=306 [2025-03-04 10:50:25,332 INFO L87 Difference]: Start difference. First operand 868 states and 1084 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 10:50:25,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:50:25,918 INFO L93 Difference]: Finished difference Result 1048 states and 1315 transitions. [2025-03-04 10:50:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 10:50:25,918 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 164 [2025-03-04 10:50:25,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:50:25,921 INFO L225 Difference]: With dead ends: 1048 [2025-03-04 10:50:25,921 INFO L226 Difference]: Without dead ends: 1047 [2025-03-04 10:50:25,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=79, Invalid=299, Unknown=2, NotChecked=0, Total=380 [2025-03-04 10:50:25,922 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 32 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:50:25,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 171 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:50:25,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2025-03-04 10:50:26,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 918. [2025-03-04 10:50:26,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 776 states have (on average 1.1353092783505154) internal successors, (881), 783 states have internal predecessors, (881), 133 states have call successors, (133), 1 states have call predecessors, (133), 1 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2025-03-04 10:50:26,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1147 transitions. [2025-03-04 10:50:26,056 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1147 transitions. Word has length 164 [2025-03-04 10:50:26,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:50:26,057 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1147 transitions. [2025-03-04 10:50:26,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-04 10:50:26,057 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1147 transitions. [2025-03-04 10:50:26,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-04 10:50:26,058 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:50:26,058 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 10:50:26,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2025-03-04 10:50:26,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:26,260 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:50:26,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:50:26,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1415737982, now seen corresponding path program 2 times [2025-03-04 10:50:26,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:50:26,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534783908] [2025-03-04 10:50:26,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:50:26,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:50:26,265 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 164 statements into 2 equivalence classes. [2025-03-04 10:50:26,270 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 10:50:26,271 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:50:26,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 2 proven. 104 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 10:50:26,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:50:26,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534783908] [2025-03-04 10:50:26,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534783908] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:26,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708913527] [2025-03-04 10:50:26,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:50:26,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:26,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:50:26,538 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:50:26,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-03-04 10:50:26,558 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 164 statements into 2 equivalence classes. [2025-03-04 10:50:26,580 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 10:50:26,580 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:50:26,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:26,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-04 10:50:26,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:50:27,050 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-03-04 10:50:27,050 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:50:27,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708913527] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:27,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 10:50:27,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2025-03-04 10:50:27,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585622321] [2025-03-04 10:50:27,265 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 10:50:27,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-04 10:50:27,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:50:27,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-04 10:50:27,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2025-03-04 10:50:27,266 INFO L87 Difference]: Start difference. First operand 918 states and 1147 transitions. Second operand has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 28 states have internal predecessors, (150), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2025-03-04 10:50:28,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:50:28,610 INFO L93 Difference]: Finished difference Result 1217 states and 1517 transitions. [2025-03-04 10:50:28,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-04 10:50:28,611 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 28 states have internal predecessors, (150), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 164 [2025-03-04 10:50:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:50:28,614 INFO L225 Difference]: With dead ends: 1217 [2025-03-04 10:50:28,614 INFO L226 Difference]: Without dead ends: 1205 [2025-03-04 10:50:28,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 162 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2025-03-04 10:50:28,615 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 724 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-04 10:50:28,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 719 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-04 10:50:28,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2025-03-04 10:50:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1080. [2025-03-04 10:50:28,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 918 states have (on average 1.130718954248366) internal successors, (1038), 925 states have internal predecessors, (1038), 153 states have call successors, (153), 1 states have call predecessors, (153), 1 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-04 10:50:28,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1344 transitions. [2025-03-04 10:50:28,779 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1344 transitions. Word has length 164 [2025-03-04 10:50:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:50:28,779 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1344 transitions. [2025-03-04 10:50:28,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 5.555555555555555) internal successors, (150), 28 states have internal predecessors, (150), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2025-03-04 10:50:28,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1344 transitions. [2025-03-04 10:50:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-03-04 10:50:28,780 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:50:28,780 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2025-03-04 10:50:28,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2025-03-04 10:50:28,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2025-03-04 10:50:28,981 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 10:50:28,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:50:28,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1777962928, now seen corresponding path program 2 times [2025-03-04 10:50:28,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:50:28,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586432639] [2025-03-04 10:50:28,981 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:50:28,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:50:28,985 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 186 statements into 2 equivalence classes. [2025-03-04 10:50:28,991 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 10:50:28,991 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:50:28,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:29,177 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 24 proven. 54 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2025-03-04 10:50:29,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:50:29,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586432639] [2025-03-04 10:50:29,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586432639] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:50:29,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144074761] [2025-03-04 10:50:29,177 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:50:29,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:50:29,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:50:29,179 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:50:29,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2025-03-04 10:50:29,203 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 186 statements into 2 equivalence classes. [2025-03-04 10:50:29,230 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 10:50:29,230 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:50:29,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:50:29,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-04 10:50:29,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:50:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2025-03-04 10:50:29,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:50:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2025-03-04 10:50:34,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144074761] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:50:34,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:50:34,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 16] total 45 [2025-03-04 10:50:34,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752123578] [2025-03-04 10:50:34,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:50:34,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-03-04 10:50:34,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:50:34,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-03-04 10:50:34,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=1508, Unknown=0, NotChecked=0, Total=2070 [2025-03-04 10:50:34,905 INFO L87 Difference]: Start difference. First operand 1080 states and 1344 transitions. Second operand has 46 states, 45 states have (on average 4.977777777777778) internal successors, (224), 46 states have internal predecessors, (224), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54)