./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.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 7aff0c23635f1e1acd85672a1024d6cb6d0af57cad0028c56f5d301198b4eae6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 11:14:31,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 11:14:31,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 11:14:31,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 11:14:31,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 11:14:31,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 11:14:31,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 11:14:31,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 11:14:31,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 11:14:31,725 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 11:14:31,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 11:14:31,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 11:14:31,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 11:14:31,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 11:14:31,727 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 11:14:31,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 11:14:31,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 11:14:31,727 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 11:14:31,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 11:14:31,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 11:14:31,728 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 11:14:31,729 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:14:31,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 11:14:31,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 11:14:31,729 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 -> 7aff0c23635f1e1acd85672a1024d6cb6d0af57cad0028c56f5d301198b4eae6 [2025-03-04 11:14:31,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 11:14:31,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 11:14:31,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 11:14:31,959 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 11:14:31,959 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 11:14:31,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c [2025-03-04 11:14:33,074 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f13b32b5a/c2e85581a59e4b6686f214e37ff88101/FLAGff1e07535 [2025-03-04 11:14:33,290 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 11:14:33,290 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c [2025-03-04 11:14:33,295 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f13b32b5a/c2e85581a59e4b6686f214e37ff88101/FLAGff1e07535 [2025-03-04 11:14:33,648 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f13b32b5a/c2e85581a59e4b6686f214e37ff88101 [2025-03-04 11:14:33,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 11:14:33,651 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 11:14:33,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 11:14:33,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 11:14:33,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 11:14:33,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb92a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33, skipping insertion in model container [2025-03-04 11:14:33,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,664 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 11:14:33,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:14:33,787 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 11:14:33,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:14:33,811 INFO L204 MainTranslator]: Completed translation [2025-03-04 11:14:33,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33 WrapperNode [2025-03-04 11:14:33,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 11:14:33,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 11:14:33,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 11:14:33,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 11:14:33,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,837 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2025-03-04 11:14:33,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 11:14:33,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 11:14:33,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 11:14:33,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 11:14:33,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,851 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,864 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 11:14:33,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,868 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 11:14:33,876 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 11:14:33,877 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 11:14:33,877 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 11:14:33,877 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (1/1) ... [2025-03-04 11:14:33,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:14:33,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:33,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 11:14:33,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 11:14:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 11:14:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 11:14:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 11:14:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 11:14:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 11:14:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 11:14:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 11:14:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 11:14:33,983 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 11:14:33,985 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 11:14:34,185 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2025-03-04 11:14:34,187 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 11:14:34,196 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 11:14:34,198 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 11:14:34,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:14:34 BoogieIcfgContainer [2025-03-04 11:14:34,198 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 11:14:34,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 11:14:34,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 11:14:34,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 11:14:34,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 11:14:33" (1/3) ... [2025-03-04 11:14:34,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608a8b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:14:34, skipping insertion in model container [2025-03-04 11:14:34,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:33" (2/3) ... [2025-03-04 11:14:34,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608a8b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:14:34, skipping insertion in model container [2025-03-04 11:14:34,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:14:34" (3/3) ... [2025-03-04 11:14:34,208 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound50.c [2025-03-04 11:14:34,219 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 11:14:34,220 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_unwindbound50.c that has 3 procedures, 69 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2025-03-04 11:14:34,259 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 11:14:34,269 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;@77680bde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 11:14:34,270 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-03-04 11:14:34,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 40 states have (on average 1.7) internal successors, (68), 62 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:14:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-04 11:14:34,279 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:34,280 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:34,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:34,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:34,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1896484220, now seen corresponding path program 1 times [2025-03-04 11:14:34,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:34,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978900045] [2025-03-04 11:14:34,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:34,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:34,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 11:14:34,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 11:14:34,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:34,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:34,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:34,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:34,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978900045] [2025-03-04 11:14:34,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978900045] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:34,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:34,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:34,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490466306] [2025-03-04 11:14:34,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:34,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:34,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:34,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:34,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:34,494 INFO L87 Difference]: Start difference. First operand has 69 states, 40 states have (on average 1.7) internal successors, (68), 62 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:34,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:34,560 INFO L93 Difference]: Finished difference Result 138 states and 159 transitions. [2025-03-04 11:14:34,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:14:34,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2025-03-04 11:14:34,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:34,566 INFO L225 Difference]: With dead ends: 138 [2025-03-04 11:14:34,566 INFO L226 Difference]: Without dead ends: 66 [2025-03-04 11:14:34,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:14:34,570 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 9 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:34,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 190 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:34,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2025-03-04 11:14:34,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2025-03-04 11:14:34,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 60 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:14:34,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2025-03-04 11:14:34,601 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 15 [2025-03-04 11:14:34,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:34,603 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2025-03-04 11:14:34,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:34,603 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2025-03-04 11:14:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 11:14:34,604 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:34,604 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:34,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 11:14:34,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:34,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:34,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2133360073, now seen corresponding path program 1 times [2025-03-04 11:14:34,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:34,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633897905] [2025-03-04 11:14:34,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:34,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:34,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 11:14:34,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 11:14:34,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:34,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:34,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689736510] [2025-03-04 11:14:34,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:34,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:34,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:34,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:34,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 11:14:34,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 11:14:34,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 11:14:34,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:34,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:34,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:14:34,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:34,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:34,707 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:34,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:34,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633897905] [2025-03-04 11:14:34,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:34,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689736510] [2025-03-04 11:14:34,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689736510] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:34,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:34,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:14:34,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804909941] [2025-03-04 11:14:34,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:34,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:14:34,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:34,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:14:34,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:14:34,711 INFO L87 Difference]: Start difference. First operand 66 states and 69 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:34,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:34,790 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2025-03-04 11:14:34,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:14:34,790 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2025-03-04 11:14:34,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:34,791 INFO L225 Difference]: With dead ends: 105 [2025-03-04 11:14:34,791 INFO L226 Difference]: Without dead ends: 99 [2025-03-04 11:14:34,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:14:34,792 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 29 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:34,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 91 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:34,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-03-04 11:14:34,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2025-03-04 11:14:34,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.639344262295082) internal successors, (100), 82 states have internal predecessors, (100), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:14:34,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 108 transitions. [2025-03-04 11:14:34,805 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 108 transitions. Word has length 18 [2025-03-04 11:14:34,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:34,805 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 108 transitions. [2025-03-04 11:14:34,806 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 108 transitions. [2025-03-04 11:14:34,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-04 11:14:34,807 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:34,807 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:34,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 11:14:35,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:35,008 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:35,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:35,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1459629483, now seen corresponding path program 1 times [2025-03-04 11:14:35,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:35,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231641270] [2025-03-04 11:14:35,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:35,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:35,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 11:14:35,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 11:14:35,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:35,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:35,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:35,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231641270] [2025-03-04 11:14:35,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231641270] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:35,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:35,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:35,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457259480] [2025-03-04 11:14:35,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:35,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:35,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:35,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:35,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:35,080 INFO L87 Difference]: Start difference. First operand 89 states and 108 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:35,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:35,160 INFO L93 Difference]: Finished difference Result 139 states and 176 transitions. [2025-03-04 11:14:35,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:35,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (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 20 [2025-03-04 11:14:35,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:35,163 INFO L225 Difference]: With dead ends: 139 [2025-03-04 11:14:35,164 INFO L226 Difference]: Without dead ends: 132 [2025-03-04 11:14:35,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:35,165 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 42 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:35,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 92 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:35,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2025-03-04 11:14:35,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 125. [2025-03-04 11:14:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 95 states have (on average 1.5894736842105264) internal successors, (151), 116 states have internal predecessors, (151), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:14:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2025-03-04 11:14:35,197 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 20 [2025-03-04 11:14:35,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:35,197 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2025-03-04 11:14:35,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2025-03-04 11:14:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 11:14:35,198 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:35,198 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:35,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 11:14:35,198 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:35,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:35,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1996126294, now seen corresponding path program 1 times [2025-03-04 11:14:35,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:35,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122608178] [2025-03-04 11:14:35,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:35,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:35,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 11:14:35,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 11:14:35,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:35,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:35,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:35,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122608178] [2025-03-04 11:14:35,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122608178] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:35,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:35,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:35,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555960229] [2025-03-04 11:14:35,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:35,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:35,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:35,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:35,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:35,304 INFO L87 Difference]: Start difference. First operand 125 states and 163 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:35,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:35,391 INFO L93 Difference]: Finished difference Result 136 states and 166 transitions. [2025-03-04 11:14:35,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:35,392 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), 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 21 [2025-03-04 11:14:35,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:35,392 INFO L225 Difference]: With dead ends: 136 [2025-03-04 11:14:35,393 INFO L226 Difference]: Without dead ends: 127 [2025-03-04 11:14:35,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:35,393 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 42 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:35,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 96 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:35,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2025-03-04 11:14:35,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2025-03-04 11:14:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.5604395604395604) internal successors, (142), 112 states have internal predecessors, (142), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:14:35,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 154 transitions. [2025-03-04 11:14:35,410 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 154 transitions. Word has length 21 [2025-03-04 11:14:35,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:35,410 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 154 transitions. [2025-03-04 11:14:35,410 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:35,410 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 154 transitions. [2025-03-04 11:14:35,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-04 11:14:35,410 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:35,410 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:35,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 11:14:35,410 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:35,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:35,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1750372979, now seen corresponding path program 1 times [2025-03-04 11:14:35,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:35,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752034780] [2025-03-04 11:14:35,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:35,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:35,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 11:14:35,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 11:14:35,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:35,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:35,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:35,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752034780] [2025-03-04 11:14:35,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752034780] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:35,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284698714] [2025-03-04 11:14:35,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:35,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:35,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:35,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:35,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 11:14:35,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 11:14:35,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 11:14:35,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:35,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:35,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:35,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:35,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:35,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284698714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:35,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:35,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-04 11:14:35,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250291620] [2025-03-04 11:14:35,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:35,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:35,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:35,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:35,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:35,706 INFO L87 Difference]: Start difference. First operand 121 states and 154 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:35,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:35,778 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2025-03-04 11:14:35,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:35,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 22 [2025-03-04 11:14:35,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:35,779 INFO L225 Difference]: With dead ends: 124 [2025-03-04 11:14:35,779 INFO L226 Difference]: Without dead ends: 123 [2025-03-04 11:14:35,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:35,781 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 81 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:35,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 76 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:35,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2025-03-04 11:14:35,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2025-03-04 11:14:35,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 112 states have internal predecessors, (141), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:14:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 153 transitions. [2025-03-04 11:14:35,793 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 153 transitions. Word has length 22 [2025-03-04 11:14:35,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:35,794 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 153 transitions. [2025-03-04 11:14:35,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 153 transitions. [2025-03-04 11:14:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-04 11:14:35,794 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:35,794 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:35,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 11:14:35,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:35,998 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:35,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:35,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1573012492, now seen corresponding path program 1 times [2025-03-04 11:14:35,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:35,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494829266] [2025-03-04 11:14:35,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:35,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:36,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 11:14:36,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 11:14:36,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:36,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:36,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476166125] [2025-03-04 11:14:36,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:36,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:36,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:36,014 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:36,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 11:14:36,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 11:14:36,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 11:14:36,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:36,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:36,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:36,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:36,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:36,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:36,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494829266] [2025-03-04 11:14:36,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:36,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476166125] [2025-03-04 11:14:36,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476166125] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:36,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:36,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:36,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870090513] [2025-03-04 11:14:36,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:36,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:36,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:36,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:36,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:36,144 INFO L87 Difference]: Start difference. First operand 121 states and 153 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:36,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:36,210 INFO L93 Difference]: Finished difference Result 122 states and 153 transitions. [2025-03-04 11:14:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:36,211 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), 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 23 [2025-03-04 11:14:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:36,211 INFO L225 Difference]: With dead ends: 122 [2025-03-04 11:14:36,211 INFO L226 Difference]: Without dead ends: 121 [2025-03-04 11:14:36,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:14:36,212 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 74 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:36,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 81 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:36,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-03-04 11:14:36,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2025-03-04 11:14:36,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.5384615384615385) internal successors, (140), 112 states have internal predecessors, (140), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:14:36,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 152 transitions. [2025-03-04 11:14:36,243 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 152 transitions. Word has length 23 [2025-03-04 11:14:36,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:36,244 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 152 transitions. [2025-03-04 11:14:36,244 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:14:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 152 transitions. [2025-03-04 11:14:36,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-04 11:14:36,244 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:36,244 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:36,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 11:14:36,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:36,445 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:36,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:36,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1588865637, now seen corresponding path program 1 times [2025-03-04 11:14:36,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:36,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376762769] [2025-03-04 11:14:36,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:36,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:36,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 11:14:36,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 11:14:36,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:36,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:36,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:36,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376762769] [2025-03-04 11:14:36,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376762769] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:36,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775960419] [2025-03-04 11:14:36,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:36,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:36,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:36,534 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:36,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 11:14:36,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 11:14:36,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 11:14:36,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:36,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:36,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:14:36,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:36,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:36,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:36,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:36,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775960419] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:36,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:36,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-03-04 11:14:36,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266406791] [2025-03-04 11:14:36,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:36,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:36,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:36,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:36,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:36,667 INFO L87 Difference]: Start difference. First operand 121 states and 152 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:36,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:36,757 INFO L93 Difference]: Finished difference Result 192 states and 239 transitions. [2025-03-04 11:14:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:14:36,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 35 [2025-03-04 11:14:36,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:36,759 INFO L225 Difference]: With dead ends: 192 [2025-03-04 11:14:36,759 INFO L226 Difference]: Without dead ends: 190 [2025-03-04 11:14:36,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:36,760 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 150 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:36,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 249 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:36,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2025-03-04 11:14:36,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 168. [2025-03-04 11:14:36,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 136 states have (on average 1.5441176470588236) internal successors, (210), 157 states have internal predecessors, (210), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 226 transitions. [2025-03-04 11:14:36,767 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 226 transitions. Word has length 35 [2025-03-04 11:14:36,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:36,767 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 226 transitions. [2025-03-04 11:14:36,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 226 transitions. [2025-03-04 11:14:36,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-04 11:14:36,768 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:36,768 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:36,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 11:14:36,969 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 11:14:36,969 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:36,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:36,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2010194509, now seen corresponding path program 1 times [2025-03-04 11:14:36,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:36,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186497982] [2025-03-04 11:14:36,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:36,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:36,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:14:36,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:14:36,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:36,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:37,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:37,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186497982] [2025-03-04 11:14:37,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186497982] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:37,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:37,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:37,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284527676] [2025-03-04 11:14:37,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:37,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:37,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:37,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:37,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:37,020 INFO L87 Difference]: Start difference. First operand 168 states and 226 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:37,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:37,054 INFO L93 Difference]: Finished difference Result 178 states and 235 transitions. [2025-03-04 11:14:37,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:37,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2025-03-04 11:14:37,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:37,056 INFO L225 Difference]: With dead ends: 178 [2025-03-04 11:14:37,056 INFO L226 Difference]: Without dead ends: 176 [2025-03-04 11:14:37,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:14:37,056 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 80 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:37,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 79 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:37,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-03-04 11:14:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 166. [2025-03-04 11:14:37,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 136 states have (on average 1.5073529411764706) internal successors, (205), 155 states have internal predecessors, (205), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 221 transitions. [2025-03-04 11:14:37,063 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 221 transitions. Word has length 36 [2025-03-04 11:14:37,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:37,063 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 221 transitions. [2025-03-04 11:14:37,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 221 transitions. [2025-03-04 11:14:37,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-04 11:14:37,064 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:37,064 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:37,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 11:14:37,064 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:37,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:37,064 INFO L85 PathProgramCache]: Analyzing trace with hash 938360849, now seen corresponding path program 1 times [2025-03-04 11:14:37,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:37,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926031125] [2025-03-04 11:14:37,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:37,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:37,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:14:37,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:14:37,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:37,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:37,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:37,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926031125] [2025-03-04 11:14:37,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926031125] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:37,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878172502] [2025-03-04 11:14:37,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:37,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:37,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:37,134 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:37,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 11:14:37,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:14:37,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:14:37,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:37,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:37,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:14:37,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:37,226 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:37,226 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:37,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878172502] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:37,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:37,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-04 11:14:37,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841935923] [2025-03-04 11:14:37,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:37,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:14:37,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:37,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:14:37,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:37,229 INFO L87 Difference]: Start difference. First operand 166 states and 221 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:37,259 INFO L93 Difference]: Finished difference Result 166 states and 221 transitions. [2025-03-04 11:14:37,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:37,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2025-03-04 11:14:37,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:37,260 INFO L225 Difference]: With dead ends: 166 [2025-03-04 11:14:37,261 INFO L226 Difference]: Without dead ends: 165 [2025-03-04 11:14:37,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:37,261 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 42 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:37,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 166 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:37,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2025-03-04 11:14:37,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2025-03-04 11:14:37,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 136 states have (on average 1.4705882352941178) internal successors, (200), 154 states have internal predecessors, (200), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:37,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 216 transitions. [2025-03-04 11:14:37,269 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 216 transitions. Word has length 38 [2025-03-04 11:14:37,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:37,269 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 216 transitions. [2025-03-04 11:14:37,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:37,269 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 216 transitions. [2025-03-04 11:14:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-04 11:14:37,270 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:37,270 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:37,278 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 11:14:37,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:37,471 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:37,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:37,471 INFO L85 PathProgramCache]: Analyzing trace with hash -975584732, now seen corresponding path program 1 times [2025-03-04 11:14:37,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:37,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003076998] [2025-03-04 11:14:37,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:37,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:37,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 11:14:37,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 11:14:37,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:37,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:37,540 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:37,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:37,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003076998] [2025-03-04 11:14:37,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003076998] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:37,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730985960] [2025-03-04 11:14:37,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:37,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:37,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:37,543 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:37,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 11:14:37,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 11:14:37,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 11:14:37,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:37,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:37,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:14:37,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:37,616 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:37,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730985960] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:37,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:37,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-04 11:14:37,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149299906] [2025-03-04 11:14:37,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:37,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:14:37,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:37,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:14:37,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:37,617 INFO L87 Difference]: Start difference. First operand 165 states and 216 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:37,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:37,655 INFO L93 Difference]: Finished difference Result 175 states and 225 transitions. [2025-03-04 11:14:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:14:37,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2025-03-04 11:14:37,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:37,658 INFO L225 Difference]: With dead ends: 175 [2025-03-04 11:14:37,658 INFO L226 Difference]: Without dead ends: 174 [2025-03-04 11:14:37,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:14:37,658 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 40 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:37,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 187 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:37,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-03-04 11:14:37,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 164. [2025-03-04 11:14:37,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 136 states have (on average 1.4338235294117647) internal successors, (195), 153 states have internal predecessors, (195), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:37,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 211 transitions. [2025-03-04 11:14:37,665 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 211 transitions. Word has length 39 [2025-03-04 11:14:37,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:37,665 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 211 transitions. [2025-03-04 11:14:37,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:37,665 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 211 transitions. [2025-03-04 11:14:37,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-04 11:14:37,666 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:37,666 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:37,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:37,866 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 11:14:37,867 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:37,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:37,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1234056318, now seen corresponding path program 1 times [2025-03-04 11:14:37,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:37,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831665380] [2025-03-04 11:14:37,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:37,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:37,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 11:14:37,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 11:14:37,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:37,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:37,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066183867] [2025-03-04 11:14:37,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:37,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:37,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:37,879 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:37,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 11:14:37,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 11:14:37,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 11:14:37,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:37,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:37,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:37,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:38,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:38,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:38,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:38,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831665380] [2025-03-04 11:14:38,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:38,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066183867] [2025-03-04 11:14:38,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066183867] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:38,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:38,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:14:38,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159568099] [2025-03-04 11:14:38,191 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:38,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:14:38,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:38,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:14:38,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:38,192 INFO L87 Difference]: Start difference. First operand 164 states and 211 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:38,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:38,296 INFO L93 Difference]: Finished difference Result 171 states and 214 transitions. [2025-03-04 11:14:38,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:14:38,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2025-03-04 11:14:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:38,298 INFO L225 Difference]: With dead ends: 171 [2025-03-04 11:14:38,298 INFO L226 Difference]: Without dead ends: 164 [2025-03-04 11:14:38,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:38,298 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 43 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:38,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 92 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:38,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2025-03-04 11:14:38,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2025-03-04 11:14:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 149 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 198 transitions. [2025-03-04 11:14:38,306 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 198 transitions. Word has length 41 [2025-03-04 11:14:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:38,307 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 198 transitions. [2025-03-04 11:14:38,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 198 transitions. [2025-03-04 11:14:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-04 11:14:38,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:38,309 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:38,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:38,510 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 11:14:38,510 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:38,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash 398959821, now seen corresponding path program 1 times [2025-03-04 11:14:38,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:38,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126560543] [2025-03-04 11:14:38,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:38,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-04 11:14:38,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-04 11:14:38,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:38,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:38,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2022031611] [2025-03-04 11:14:38,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:38,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:38,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:38,522 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:38,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 11:14:38,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-04 11:14:38,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-04 11:14:38,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:38,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:38,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:38,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:38,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:38,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:38,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126560543] [2025-03-04 11:14:38,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:38,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022031611] [2025-03-04 11:14:38,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022031611] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:38,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:38,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:14:38,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990318395] [2025-03-04 11:14:38,854 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:38,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:14:38,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:38,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:14:38,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:38,855 INFO L87 Difference]: Start difference. First operand 160 states and 198 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:38,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:38,945 INFO L93 Difference]: Finished difference Result 216 states and 266 transitions. [2025-03-04 11:14:38,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:14:38,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2025-03-04 11:14:38,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:38,946 INFO L225 Difference]: With dead ends: 216 [2025-03-04 11:14:38,947 INFO L226 Difference]: Without dead ends: 211 [2025-03-04 11:14:38,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:38,947 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 104 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:38,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 116 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:38,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2025-03-04 11:14:38,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 203. [2025-03-04 11:14:38,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 190 states have internal predecessors, (233), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:14:38,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 253 transitions. [2025-03-04 11:14:38,954 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 253 transitions. Word has length 42 [2025-03-04 11:14:38,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:38,955 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 253 transitions. [2025-03-04 11:14:38,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:38,955 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 253 transitions. [2025-03-04 11:14:38,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-04 11:14:38,955 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:38,956 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-04 11:14:38,968 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 11:14:39,160 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 11:14:39,160 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:39,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:39,161 INFO L85 PathProgramCache]: Analyzing trace with hash 326932543, now seen corresponding path program 1 times [2025-03-04 11:14:39,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:39,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508009837] [2025-03-04 11:14:39,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:39,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:39,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 11:14:39,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 11:14:39,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:39,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:39,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:39,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508009837] [2025-03-04 11:14:39,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508009837] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:39,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651307892] [2025-03-04 11:14:39,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:39,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:39,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:39,234 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:39,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 11:14:39,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 11:14:39,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 11:14:39,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:39,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:39,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:14:39,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:39,350 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:39,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:39,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651307892] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:39,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:39,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-04 11:14:39,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906564130] [2025-03-04 11:14:39,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:39,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:14:39,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:39,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:14:39,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:14:39,352 INFO L87 Difference]: Start difference. First operand 203 states and 253 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:39,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:39,411 INFO L93 Difference]: Finished difference Result 203 states and 253 transitions. [2025-03-04 11:14:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:14:39,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2025-03-04 11:14:39,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:39,413 INFO L225 Difference]: With dead ends: 203 [2025-03-04 11:14:39,413 INFO L226 Difference]: Without dead ends: 201 [2025-03-04 11:14:39,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:14:39,413 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:39,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 70 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:39,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2025-03-04 11:14:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2025-03-04 11:14:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 185 states have internal predecessors, (227), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:14:39,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 247 transitions. [2025-03-04 11:14:39,422 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 247 transitions. Word has length 43 [2025-03-04 11:14:39,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:39,423 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 247 transitions. [2025-03-04 11:14:39,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:14:39,423 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 247 transitions. [2025-03-04 11:14:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-04 11:14:39,424 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:39,424 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:39,430 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 11:14:39,624 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,SelfDestructingSolverStorable12 [2025-03-04 11:14:39,625 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:39,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:39,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1544974252, now seen corresponding path program 1 times [2025-03-04 11:14:39,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:39,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982421067] [2025-03-04 11:14:39,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:39,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:39,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 11:14:39,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 11:14:39,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:39,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:39,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:39,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982421067] [2025-03-04 11:14:39,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982421067] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:39,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119064038] [2025-03-04 11:14:39,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:39,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:39,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:39,699 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:39,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 11:14:39,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 11:14:39,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 11:14:39,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:39,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:39,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:14:39,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:39,810 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:39,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:39,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119064038] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:39,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:39,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2025-03-04 11:14:39,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495010153] [2025-03-04 11:14:39,879 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:39,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:39,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:39,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:39,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:39,880 INFO L87 Difference]: Start difference. First operand 198 states and 247 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:14:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:40,027 INFO L93 Difference]: Finished difference Result 206 states and 251 transitions. [2025-03-04 11:14:40,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:14:40,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2025-03-04 11:14:40,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:40,031 INFO L225 Difference]: With dead ends: 206 [2025-03-04 11:14:40,031 INFO L226 Difference]: Without dead ends: 198 [2025-03-04 11:14:40,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:14:40,032 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 24 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:40,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 192 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:40,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2025-03-04 11:14:40,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2025-03-04 11:14:40,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2685714285714285) internal successors, (222), 185 states have internal predecessors, (222), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:14:40,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 242 transitions. [2025-03-04 11:14:40,040 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 242 transitions. Word has length 44 [2025-03-04 11:14:40,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:40,040 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 242 transitions. [2025-03-04 11:14:40,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:14:40,041 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 242 transitions. [2025-03-04 11:14:40,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-04 11:14:40,041 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:40,041 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:40,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:40,242 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,SelfDestructingSolverStorable13 [2025-03-04 11:14:40,242 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:40,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:40,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1237532222, now seen corresponding path program 1 times [2025-03-04 11:14:40,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:40,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969092408] [2025-03-04 11:14:40,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:40,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:40,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 11:14:40,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 11:14:40,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:40,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:40,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:40,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969092408] [2025-03-04 11:14:40,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969092408] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:40,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628744231] [2025-03-04 11:14:40,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:40,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:40,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:40,378 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:40,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 11:14:40,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 11:14:40,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 11:14:40,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:40,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:40,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:14:40,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:40,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:40,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628744231] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:40,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:40,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2025-03-04 11:14:40,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556964495] [2025-03-04 11:14:40,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:40,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-04 11:14:40,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:40,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-04 11:14:40,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:14:40,705 INFO L87 Difference]: Start difference. First operand 198 states and 242 transitions. Second operand has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:14:40,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:40,953 INFO L93 Difference]: Finished difference Result 208 states and 249 transitions. [2025-03-04 11:14:40,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 11:14:40,953 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2025-03-04 11:14:40,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:40,954 INFO L225 Difference]: With dead ends: 208 [2025-03-04 11:14:40,954 INFO L226 Difference]: Without dead ends: 205 [2025-03-04 11:14:40,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 77 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2025-03-04 11:14:40,955 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 185 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:40,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 149 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2025-03-04 11:14:40,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 166. [2025-03-04 11:14:40,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 147 states have (on average 1.2244897959183674) internal successors, (180), 154 states have internal predecessors, (180), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 11:14:40,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 198 transitions. [2025-03-04 11:14:40,961 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 198 transitions. Word has length 45 [2025-03-04 11:14:40,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:40,962 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 198 transitions. [2025-03-04 11:14:40,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:14:40,962 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 198 transitions. [2025-03-04 11:14:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-04 11:14:40,962 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:40,962 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:40,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 11:14:41,163 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,SelfDestructingSolverStorable14 [2025-03-04 11:14:41,163 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:41,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:41,163 INFO L85 PathProgramCache]: Analyzing trace with hash -291206775, now seen corresponding path program 1 times [2025-03-04 11:14:41,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:41,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359105176] [2025-03-04 11:14:41,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:41,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:41,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 11:14:41,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 11:14:41,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:41,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:41,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603276118] [2025-03-04 11:14:41,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:41,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:41,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:41,173 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:41,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 11:14:41,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 11:14:41,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 11:14:41,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:41,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:41,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:14:41,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:41,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:41,446 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:41,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:41,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359105176] [2025-03-04 11:14:41,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:41,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603276118] [2025-03-04 11:14:41,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603276118] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:41,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:41,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-04 11:14:41,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727269897] [2025-03-04 11:14:41,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:41,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:14:41,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:41,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:14:41,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:41,448 INFO L87 Difference]: Start difference. First operand 166 states and 198 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:14:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:41,654 INFO L93 Difference]: Finished difference Result 273 states and 325 transitions. [2025-03-04 11:14:41,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:14:41,655 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2025-03-04 11:14:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:41,655 INFO L225 Difference]: With dead ends: 273 [2025-03-04 11:14:41,656 INFO L226 Difference]: Without dead ends: 190 [2025-03-04 11:14:41,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:14:41,657 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 109 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:41,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 112 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2025-03-04 11:14:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2025-03-04 11:14:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 165 states have (on average 1.1636363636363636) internal successors, (192), 171 states have internal predecessors, (192), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:14:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 212 transitions. [2025-03-04 11:14:41,665 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 212 transitions. Word has length 46 [2025-03-04 11:14:41,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:41,665 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 212 transitions. [2025-03-04 11:14:41,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:14:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 212 transitions. [2025-03-04 11:14:41,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-04 11:14:41,666 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:41,666 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:41,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:41,866 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,SelfDestructingSolverStorable15 [2025-03-04 11:14:41,867 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:41,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:41,867 INFO L85 PathProgramCache]: Analyzing trace with hash 528317720, now seen corresponding path program 2 times [2025-03-04 11:14:41,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:41,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248950226] [2025-03-04 11:14:41,867 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:41,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:41,871 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-03-04 11:14:41,877 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 11:14:41,877 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:41,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:41,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173328360] [2025-03-04 11:14:41,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:41,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:41,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:41,897 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:41,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 11:14:41,919 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-03-04 11:14:41,933 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 11:14:41,933 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:41,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:41,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:14:41,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:14:42,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:14:42,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:42,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248950226] [2025-03-04 11:14:42,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:42,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173328360] [2025-03-04 11:14:42,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173328360] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:42,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:42,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-04 11:14:42,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922939275] [2025-03-04 11:14:42,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:42,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:14:42,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:42,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:14:42,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:42,233 INFO L87 Difference]: Start difference. First operand 184 states and 212 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:42,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:42,647 INFO L93 Difference]: Finished difference Result 387 states and 459 transitions. [2025-03-04 11:14:42,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:14:42,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 65 [2025-03-04 11:14:42,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:42,649 INFO L225 Difference]: With dead ends: 387 [2025-03-04 11:14:42,650 INFO L226 Difference]: Without dead ends: 376 [2025-03-04 11:14:42,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:14:42,651 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 155 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:42,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 300 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:14:42,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2025-03-04 11:14:42,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 354. [2025-03-04 11:14:42,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 327 states have (on average 1.1681957186544343) internal successors, (382), 333 states have internal predecessors, (382), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 11:14:42,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 418 transitions. [2025-03-04 11:14:42,667 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 418 transitions. Word has length 65 [2025-03-04 11:14:42,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:42,667 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 418 transitions. [2025-03-04 11:14:42,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 418 transitions. [2025-03-04 11:14:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-04 11:14:42,668 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:42,668 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:42,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:42,868 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,SelfDestructingSolverStorable16 [2025-03-04 11:14:42,869 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:42,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:42,873 INFO L85 PathProgramCache]: Analyzing trace with hash 301635478, now seen corresponding path program 2 times [2025-03-04 11:14:42,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:42,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525653412] [2025-03-04 11:14:42,873 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:42,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:42,876 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-03-04 11:14:42,894 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-03-04 11:14:42,894 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:42,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-04 11:14:42,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:42,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525653412] [2025-03-04 11:14:42,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525653412] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:42,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513277777] [2025-03-04 11:14:42,986 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:42,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:42,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:42,989 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:42,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 11:14:43,011 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-03-04 11:14:43,023 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-03-04 11:14:43,024 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:43,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:43,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:43,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:43,135 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:14:43,135 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:43,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513277777] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:43,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:43,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2025-03-04 11:14:43,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217811552] [2025-03-04 11:14:43,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:43,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:14:43,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:43,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:14:43,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:14:43,211 INFO L87 Difference]: Start difference. First operand 354 states and 418 transitions. Second operand has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:43,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:43,402 INFO L93 Difference]: Finished difference Result 383 states and 450 transitions. [2025-03-04 11:14:43,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:14:43,402 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 67 [2025-03-04 11:14:43,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:43,404 INFO L225 Difference]: With dead ends: 383 [2025-03-04 11:14:43,404 INFO L226 Difference]: Without dead ends: 375 [2025-03-04 11:14:43,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:14:43,405 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:43,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 189 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:43,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-03-04 11:14:43,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2025-03-04 11:14:43,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 345 states have (on average 1.1623188405797102) internal successors, (401), 351 states have internal predecessors, (401), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-04 11:14:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 439 transitions. [2025-03-04 11:14:43,422 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 439 transitions. Word has length 67 [2025-03-04 11:14:43,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:43,423 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 439 transitions. [2025-03-04 11:14:43,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:43,423 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 439 transitions. [2025-03-04 11:14:43,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-04 11:14:43,424 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:43,425 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:43,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:43,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:43,625 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:43,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:43,626 INFO L85 PathProgramCache]: Analyzing trace with hash -730864820, now seen corresponding path program 1 times [2025-03-04 11:14:43,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:43,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647540997] [2025-03-04 11:14:43,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:43,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:43,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-04 11:14:43,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-04 11:14:43,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:43,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:43,727 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:14:43,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:43,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647540997] [2025-03-04 11:14:43,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647540997] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:43,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996826658] [2025-03-04 11:14:43,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:43,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:43,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:43,730 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:43,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 11:14:43,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-04 11:14:43,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-04 11:14:43,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:43,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:43,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:14:43,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:14:43,847 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:43,917 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 24 proven. 47 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:14:43,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996826658] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:43,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:43,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2025-03-04 11:14:43,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582901109] [2025-03-04 11:14:43,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:43,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:14:43,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:43,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:14:43,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:14:43,919 INFO L87 Difference]: Start difference. First operand 373 states and 439 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:43,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:43,978 INFO L93 Difference]: Finished difference Result 512 states and 592 transitions. [2025-03-04 11:14:43,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:14:43,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 90 [2025-03-04 11:14:43,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:43,980 INFO L225 Difference]: With dead ends: 512 [2025-03-04 11:14:43,980 INFO L226 Difference]: Without dead ends: 344 [2025-03-04 11:14:43,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:14:43,983 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 17 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:43,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 134 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-03-04 11:14:43,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 341. [2025-03-04 11:14:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 315 states have (on average 1.1206349206349207) internal successors, (353), 321 states have internal predecessors, (353), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:14:44,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 387 transitions. [2025-03-04 11:14:44,001 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 387 transitions. Word has length 90 [2025-03-04 11:14:44,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:44,002 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 387 transitions. [2025-03-04 11:14:44,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:44,002 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 387 transitions. [2025-03-04 11:14:44,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-04 11:14:44,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:44,004 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:44,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:44,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:44,205 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:44,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:44,205 INFO L85 PathProgramCache]: Analyzing trace with hash -846990835, now seen corresponding path program 2 times [2025-03-04 11:14:44,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:44,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789109023] [2025-03-04 11:14:44,206 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:44,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:44,210 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 90 statements into 2 equivalence classes. [2025-03-04 11:14:44,217 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 90 of 90 statements. [2025-03-04 11:14:44,217 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:44,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:44,449 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 14 proven. 27 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-04 11:14:44,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:44,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789109023] [2025-03-04 11:14:44,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789109023] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:44,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667300282] [2025-03-04 11:14:44,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:44,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:44,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:44,452 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:44,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 11:14:44,476 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 90 statements into 2 equivalence classes. [2025-03-04 11:14:44,493 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 90 of 90 statements. [2025-03-04 11:14:44,493 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:44,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:44,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:14:44,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:44,629 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:14:44,629 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:14:44,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667300282] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:44,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:44,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2025-03-04 11:14:44,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443883891] [2025-03-04 11:14:44,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:44,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-04 11:14:44,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:44,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-04 11:14:44,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2025-03-04 11:14:44,807 INFO L87 Difference]: Start difference. First operand 341 states and 387 transitions. Second operand has 23 states, 22 states have (on average 7.954545454545454) internal successors, (175), 22 states have internal predecessors, (175), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-04 11:14:46,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:46,039 INFO L93 Difference]: Finished difference Result 759 states and 878 transitions. [2025-03-04 11:14:46,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-04 11:14:46,040 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.954545454545454) internal successors, (175), 22 states have internal predecessors, (175), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 90 [2025-03-04 11:14:46,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:46,042 INFO L225 Difference]: With dead ends: 759 [2025-03-04 11:14:46,042 INFO L226 Difference]: Without dead ends: 725 [2025-03-04 11:14:46,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1935 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1350, Invalid=4502, Unknown=0, NotChecked=0, Total=5852 [2025-03-04 11:14:46,045 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 505 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:46,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 295 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:14:46,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2025-03-04 11:14:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 335. [2025-03-04 11:14:46,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 311 states have (on average 1.0836012861736335) internal successors, (337), 315 states have internal predecessors, (337), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:14:46,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 371 transitions. [2025-03-04 11:14:46,065 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 371 transitions. Word has length 90 [2025-03-04 11:14:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:46,065 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 371 transitions. [2025-03-04 11:14:46,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.954545454545454) internal successors, (175), 22 states have internal predecessors, (175), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-04 11:14:46,065 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 371 transitions. [2025-03-04 11:14:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-04 11:14:46,066 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:46,066 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:46,072 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 11:14:46,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:46,271 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:46,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1827248542, now seen corresponding path program 1 times [2025-03-04 11:14:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:46,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872605618] [2025-03-04 11:14:46,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:46,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:46,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-04 11:14:46,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-04 11:14:46,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:46,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 62 proven. 14 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-04 11:14:46,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:46,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872605618] [2025-03-04 11:14:46,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872605618] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:46,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711664376] [2025-03-04 11:14:46,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:46,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:46,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:46,315 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:46,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 11:14:46,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-04 11:14:46,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-04 11:14:46,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:46,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:46,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:14:46,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 62 proven. 14 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-04 11:14:46,387 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:46,455 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 62 proven. 14 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-04 11:14:46,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711664376] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:46,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:46,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-04 11:14:46,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352759690] [2025-03-04 11:14:46,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:46,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:14:46,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:46,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:14:46,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:14:46,458 INFO L87 Difference]: Start difference. First operand 335 states and 371 transitions. Second operand has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 7 states have internal predecessors, (116), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-04 11:14:46,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:46,522 INFO L93 Difference]: Finished difference Result 514 states and 581 transitions. [2025-03-04 11:14:46,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:14:46,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 7 states have internal predecessors, (116), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 100 [2025-03-04 11:14:46,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:46,524 INFO L225 Difference]: With dead ends: 514 [2025-03-04 11:14:46,524 INFO L226 Difference]: Without dead ends: 512 [2025-03-04 11:14:46,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:14:46,524 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 12 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:46,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 136 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:46,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2025-03-04 11:14:46,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2025-03-04 11:14:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 479 states have (on average 1.058455114822547) internal successors, (507), 482 states have internal predecessors, (507), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-04 11:14:46,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 561 transitions. [2025-03-04 11:14:46,546 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 561 transitions. Word has length 100 [2025-03-04 11:14:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:46,546 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 561 transitions. [2025-03-04 11:14:46,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 7 states have internal predecessors, (116), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-04 11:14:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 561 transitions. [2025-03-04 11:14:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-04 11:14:46,547 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:46,547 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:46,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:46,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:46,751 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:46,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:46,751 INFO L85 PathProgramCache]: Analyzing trace with hash -360641376, now seen corresponding path program 1 times [2025-03-04 11:14:46,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:46,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373357708] [2025-03-04 11:14:46,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:46,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:46,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-04 11:14:46,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-04 11:14:46,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:46,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:14:46,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:46,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373357708] [2025-03-04 11:14:46,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373357708] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:46,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4487649] [2025-03-04 11:14:46,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:46,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:46,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:46,811 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:46,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 11:14:46,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-04 11:14:46,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-04 11:14:46,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:46,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:46,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:14:46,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:46,915 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:14:46,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:47,029 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:14:47,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4487649] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:47,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:47,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 11:14:47,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482953144] [2025-03-04 11:14:47,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:47,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:14:47,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:47,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:14:47,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:47,031 INFO L87 Difference]: Start difference. First operand 512 states and 561 transitions. Second operand has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:47,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:47,186 INFO L93 Difference]: Finished difference Result 1219 states and 1361 transitions. [2025-03-04 11:14:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:14:47,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 103 [2025-03-04 11:14:47,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:47,192 INFO L225 Difference]: With dead ends: 1219 [2025-03-04 11:14:47,193 INFO L226 Difference]: Without dead ends: 1218 [2025-03-04 11:14:47,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:47,197 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 112 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:47,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 213 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:47,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2025-03-04 11:14:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1198. [2025-03-04 11:14:47,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 1129 states have (on average 1.070859167404783) internal successors, (1209), 1132 states have internal predecessors, (1209), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-03-04 11:14:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1335 transitions. [2025-03-04 11:14:47,253 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1335 transitions. Word has length 103 [2025-03-04 11:14:47,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:47,253 INFO L471 AbstractCegarLoop]: Abstraction has 1198 states and 1335 transitions. [2025-03-04 11:14:47,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:47,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1335 transitions. [2025-03-04 11:14:47,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-04 11:14:47,257 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:47,257 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:47,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 11:14:47,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:47,458 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:47,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:47,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1516179113, now seen corresponding path program 1 times [2025-03-04 11:14:47,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:47,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825959660] [2025-03-04 11:14:47,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:47,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:47,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-04 11:14:47,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-04 11:14:47,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 86 proven. 30 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-04 11:14:47,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:47,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825959660] [2025-03-04 11:14:47,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825959660] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:47,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713783281] [2025-03-04 11:14:47,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:47,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:47,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:47,539 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:47,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 11:14:47,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-04 11:14:47,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-04 11:14:47,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:47,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:14:47,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:47,660 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 98 proven. 30 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-04 11:14:47,660 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:47,741 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 86 proven. 30 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-04 11:14:47,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713783281] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:47,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:47,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2025-03-04 11:14:47,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145620611] [2025-03-04 11:14:47,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:47,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:47,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:47,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:47,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:47,743 INFO L87 Difference]: Start difference. First operand 1198 states and 1335 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-04 11:14:47,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:47,874 INFO L93 Difference]: Finished difference Result 1279 states and 1421 transitions. [2025-03-04 11:14:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:14:47,874 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 111 [2025-03-04 11:14:47,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:47,877 INFO L225 Difference]: With dead ends: 1279 [2025-03-04 11:14:47,877 INFO L226 Difference]: Without dead ends: 1125 [2025-03-04 11:14:47,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:47,879 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 39 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:47,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 217 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:47,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2025-03-04 11:14:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1121. [2025-03-04 11:14:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1055 states have (on average 1.0597156398104266) internal successors, (1118), 1058 states have internal predecessors, (1118), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-03-04 11:14:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1238 transitions. [2025-03-04 11:14:47,919 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1238 transitions. Word has length 111 [2025-03-04 11:14:47,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:47,920 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1238 transitions. [2025-03-04 11:14:47,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-04 11:14:47,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1238 transitions. [2025-03-04 11:14:47,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-04 11:14:47,921 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:47,921 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:47,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:48,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:48,123 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:48,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:48,123 INFO L85 PathProgramCache]: Analyzing trace with hash 412288807, now seen corresponding path program 1 times [2025-03-04 11:14:48,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:48,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520207750] [2025-03-04 11:14:48,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:48,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:48,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-04 11:14:48,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-04 11:14:48,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:48,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:48,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:48,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520207750] [2025-03-04 11:14:48,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520207750] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:48,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424449470] [2025-03-04 11:14:48,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:48,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:48,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:48,185 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:48,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 11:14:48,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-04 11:14:48,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-04 11:14:48,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:48,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:48,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:48,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:48,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:48,433 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:48,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424449470] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:48,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:48,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-03-04 11:14:48,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311441880] [2025-03-04 11:14:48,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:48,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 11:14:48,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:48,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 11:14:48,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:14:48,434 INFO L87 Difference]: Start difference. First operand 1121 states and 1238 transitions. Second operand has 13 states, 12 states have (on average 16.416666666666668) internal successors, (197), 13 states have internal predecessors, (197), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:14:48,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:48,602 INFO L93 Difference]: Finished difference Result 2262 states and 2558 transitions. [2025-03-04 11:14:48,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 11:14:48,603 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 16.416666666666668) internal successors, (197), 13 states have internal predecessors, (197), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 123 [2025-03-04 11:14:48,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:48,608 INFO L225 Difference]: With dead ends: 2262 [2025-03-04 11:14:48,608 INFO L226 Difference]: Without dead ends: 2261 [2025-03-04 11:14:48,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 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 11:14:48,609 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 14 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:48,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 162 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:48,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2025-03-04 11:14:48,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2261. [2025-03-04 11:14:48,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 2135 states have (on average 1.0576112412177987) internal successors, (2258), 2138 states have internal predecessors, (2258), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2025-03-04 11:14:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2498 transitions. [2025-03-04 11:14:48,685 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2498 transitions. Word has length 123 [2025-03-04 11:14:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:48,685 INFO L471 AbstractCegarLoop]: Abstraction has 2261 states and 2498 transitions. [2025-03-04 11:14:48,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 16.416666666666668) internal successors, (197), 13 states have internal predecessors, (197), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:14:48,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2498 transitions. [2025-03-04 11:14:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-04 11:14:48,686 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:48,686 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:48,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:48,887 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,SelfDestructingSolverStorable23 [2025-03-04 11:14:48,887 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:48,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:48,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1833130828, now seen corresponding path program 2 times [2025-03-04 11:14:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:48,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617136290] [2025-03-04 11:14:48,888 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:48,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:48,892 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 134 statements into 2 equivalence classes. [2025-03-04 11:14:48,897 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 134 of 134 statements. [2025-03-04 11:14:48,897 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:48,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 68 proven. 128 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:49,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:49,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617136290] [2025-03-04 11:14:49,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617136290] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:49,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873313393] [2025-03-04 11:14:49,001 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:49,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:49,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:49,003 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:49,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 11:14:49,028 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 134 statements into 2 equivalence classes. [2025-03-04 11:14:49,049 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 134 of 134 statements. [2025-03-04 11:14:49,049 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:49,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:14:49,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:49,196 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 83 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:49,196 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 83 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:49,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873313393] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:49,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:49,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2025-03-04 11:14:49,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312212391] [2025-03-04 11:14:49,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:49,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:14:49,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:49,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:14:49,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:14:49,330 INFO L87 Difference]: Start difference. First operand 2261 states and 2498 transitions. Second operand has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:49,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:49,585 INFO L93 Difference]: Finished difference Result 5191 states and 5743 transitions. [2025-03-04 11:14:49,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:14:49,586 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 134 [2025-03-04 11:14:49,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:49,597 INFO L225 Difference]: With dead ends: 5191 [2025-03-04 11:14:49,597 INFO L226 Difference]: Without dead ends: 3723 [2025-03-04 11:14:49,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 259 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:14:49,601 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 51 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:49,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 321 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:49,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2025-03-04 11:14:49,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 2529. [2025-03-04 11:14:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2389 states have (on average 1.0565089995814148) internal successors, (2524), 2392 states have internal predecessors, (2524), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2025-03-04 11:14:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 2792 transitions. [2025-03-04 11:14:49,715 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 2792 transitions. Word has length 134 [2025-03-04 11:14:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:49,715 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 2792 transitions. [2025-03-04 11:14:49,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:49,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 2792 transitions. [2025-03-04 11:14:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-04 11:14:49,717 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:49,717 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:49,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-04 11:14:49,919 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,SelfDestructingSolverStorable24 [2025-03-04 11:14:49,920 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:49,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:49,920 INFO L85 PathProgramCache]: Analyzing trace with hash 559019480, now seen corresponding path program 3 times [2025-03-04 11:14:49,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:49,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717824443] [2025-03-04 11:14:49,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:49,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:49,926 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 7 equivalence classes. [2025-03-04 11:14:49,948 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 157 of 157 statements. [2025-03-04 11:14:49,948 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:14:49,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:49,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355720559] [2025-03-04 11:14:49,950 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:49,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:49,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:49,952 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:49,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 11:14:49,976 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 7 equivalence classes. [2025-03-04 11:14:49,989 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 65 of 157 statements. [2025-03-04 11:14:49,989 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-04 11:14:49,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:14:49,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 131 proven. 8 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2025-03-04 11:14:50,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:50,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:50,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717824443] [2025-03-04 11:14:50,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:50,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355720559] [2025-03-04 11:14:50,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355720559] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:50,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:50,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-04 11:14:50,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597485217] [2025-03-04 11:14:50,226 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:50,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:14:50,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:50,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:14:50,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:14:50,226 INFO L87 Difference]: Start difference. First operand 2529 states and 2792 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:14:50,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:50,363 INFO L93 Difference]: Finished difference Result 2534 states and 2794 transitions. [2025-03-04 11:14:50,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:14:50,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 157 [2025-03-04 11:14:50,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:50,371 INFO L225 Difference]: With dead ends: 2534 [2025-03-04 11:14:50,371 INFO L226 Difference]: Without dead ends: 2530 [2025-03-04 11:14:50,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:50,373 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 19 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:50,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 119 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:50,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2025-03-04 11:14:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2529. [2025-03-04 11:14:50,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2389 states have (on average 1.0539974884889074) internal successors, (2518), 2392 states have internal predecessors, (2518), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2025-03-04 11:14:50,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 2786 transitions. [2025-03-04 11:14:50,462 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 2786 transitions. Word has length 157 [2025-03-04 11:14:50,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:50,463 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 2786 transitions. [2025-03-04 11:14:50,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:14:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 2786 transitions. [2025-03-04 11:14:50,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-04 11:14:50,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:50,464 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:50,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-04 11:14:50,665 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,SelfDestructingSolverStorable25 [2025-03-04 11:14:50,666 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:50,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:50,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1123291509, now seen corresponding path program 3 times [2025-03-04 11:14:50,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:50,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898122169] [2025-03-04 11:14:50,666 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:50,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:50,671 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 7 equivalence classes. [2025-03-04 11:14:50,684 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 157 of 157 statements. [2025-03-04 11:14:50,684 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:14:50,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:50,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362399294] [2025-03-04 11:14:50,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:50,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:50,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:50,687 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:50,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 11:14:50,711 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 7 equivalence classes. [2025-03-04 11:14:50,736 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 134 of 157 statements. [2025-03-04 11:14:50,736 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-04 11:14:50,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:50,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:14:50,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-04 11:14:50,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:51,159 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-04 11:14:51,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:51,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898122169] [2025-03-04 11:14:51,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:51,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362399294] [2025-03-04 11:14:51,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362399294] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:51,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:51,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2025-03-04 11:14:51,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393562298] [2025-03-04 11:14:51,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:51,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 11:14:51,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:51,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 11:14:51,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:14:51,161 INFO L87 Difference]: Start difference. First operand 2529 states and 2786 transitions. Second operand has 14 states, 13 states have (on average 14.307692307692308) internal successors, (186), 14 states have internal predecessors, (186), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:14:51,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:51,922 INFO L93 Difference]: Finished difference Result 3189 states and 3506 transitions. [2025-03-04 11:14:51,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-04 11:14:51,924 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.307692307692308) internal successors, (186), 14 states have internal predecessors, (186), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 157 [2025-03-04 11:14:51,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:51,932 INFO L225 Difference]: With dead ends: 3189 [2025-03-04 11:14:51,932 INFO L226 Difference]: Without dead ends: 3177 [2025-03-04 11:14:51,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=1188, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 11:14:51,934 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 315 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:51,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 503 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:14:51,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2025-03-04 11:14:52,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2927. [2025-03-04 11:14:52,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2767 states have (on average 1.0495121069750633) internal successors, (2904), 2770 states have internal predecessors, (2904), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2025-03-04 11:14:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 3212 transitions. [2025-03-04 11:14:52,044 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 3212 transitions. Word has length 157 [2025-03-04 11:14:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:52,044 INFO L471 AbstractCegarLoop]: Abstraction has 2927 states and 3212 transitions. [2025-03-04 11:14:52,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.307692307692308) internal successors, (186), 14 states have internal predecessors, (186), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:14:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 3212 transitions. [2025-03-04 11:14:52,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-04 11:14:52,046 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:52,046 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:52,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-04 11:14:52,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:52,247 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:52,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:52,247 INFO L85 PathProgramCache]: Analyzing trace with hash 168176088, now seen corresponding path program 4 times [2025-03-04 11:14:52,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:52,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368063126] [2025-03-04 11:14:52,247 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:14:52,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:52,252 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 157 statements into 2 equivalence classes. [2025-03-04 11:14:52,271 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 157 of 157 statements. [2025-03-04 11:14:52,271 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:14:52,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:52,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190211428] [2025-03-04 11:14:52,272 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:14:52,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:52,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:52,274 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:52,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 11:14:52,299 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 157 statements into 2 equivalence classes. [2025-03-04 11:14:52,326 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 157 of 157 statements. [2025-03-04 11:14:52,327 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:14:52,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:52,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 11:14:52,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:52,692 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 6 proven. 249 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2025-03-04 11:14:52,693 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:52,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:52,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368063126] [2025-03-04 11:14:52,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:52,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190211428] [2025-03-04 11:14:52,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190211428] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:52,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:52,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-04 11:14:52,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83434958] [2025-03-04 11:14:52,837 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:52,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 11:14:52,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:52,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 11:14:52,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:14:52,838 INFO L87 Difference]: Start difference. First operand 2927 states and 3212 transitions. Second operand has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:53,176 INFO L93 Difference]: Finished difference Result 3353 states and 3676 transitions. [2025-03-04 11:14:53,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:14:53,177 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 157 [2025-03-04 11:14:53,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:53,185 INFO L225 Difference]: With dead ends: 3353 [2025-03-04 11:14:53,185 INFO L226 Difference]: Without dead ends: 3349 [2025-03-04 11:14:53,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:14:53,186 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 28 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:53,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 387 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:53,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2025-03-04 11:14:53,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 2965. [2025-03-04 11:14:53,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2803 states have (on average 1.048876204067071) internal successors, (2940), 2806 states have internal predecessors, (2940), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-04 11:14:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 3252 transitions. [2025-03-04 11:14:53,300 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 3252 transitions. Word has length 157 [2025-03-04 11:14:53,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:53,300 INFO L471 AbstractCegarLoop]: Abstraction has 2965 states and 3252 transitions. [2025-03-04 11:14:53,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:53,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 3252 transitions. [2025-03-04 11:14:53,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-04 11:14:53,302 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:53,302 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:53,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-04 11:14:53,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-04 11:14:53,504 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:53,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1464666926, now seen corresponding path program 5 times [2025-03-04 11:14:53,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:53,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563458623] [2025-03-04 11:14:53,504 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:14:53,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:53,510 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 180 statements into 8 equivalence classes. [2025-03-04 11:14:53,527 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 180 of 180 statements. [2025-03-04 11:14:53,527 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-04 11:14:53,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 165 proven. 236 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:14:53,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:53,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563458623] [2025-03-04 11:14:53,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563458623] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:53,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557117735] [2025-03-04 11:14:53,640 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:14:53,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:53,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:53,643 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:53,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 11:14:53,669 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 180 statements into 8 equivalence classes. [2025-03-04 11:14:53,698 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 180 of 180 statements. [2025-03-04 11:14:53,698 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-04 11:14:53,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:53,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:14:53,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 148 proven. 253 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:14:53,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 148 proven. 253 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:14:54,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557117735] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:54,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:54,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2025-03-04 11:14:54,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398924177] [2025-03-04 11:14:54,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:54,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 11:14:54,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:54,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 11:14:54,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:14:54,038 INFO L87 Difference]: Start difference. First operand 2965 states and 3252 transitions. Second operand has 14 states, 14 states have (on average 15.214285714285714) internal successors, (213), 14 states have internal predecessors, (213), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:14:54,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:54,339 INFO L93 Difference]: Finished difference Result 6133 states and 6739 transitions. [2025-03-04 11:14:54,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:14:54,340 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 15.214285714285714) internal successors, (213), 14 states have internal predecessors, (213), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 180 [2025-03-04 11:14:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:54,351 INFO L225 Difference]: With dead ends: 6133 [2025-03-04 11:14:54,351 INFO L226 Difference]: Without dead ends: 4645 [2025-03-04 11:14:54,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 349 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:14:54,354 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 45 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:54,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 322 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:54,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4645 states. [2025-03-04 11:14:54,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4645 to 3433. [2025-03-04 11:14:54,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3247 states have (on average 1.0452725592854943) internal successors, (3394), 3250 states have internal predecessors, (3394), 180 states have call successors, (180), 2 states have call predecessors, (180), 2 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2025-03-04 11:14:54,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 3754 transitions. [2025-03-04 11:14:54,482 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 3754 transitions. Word has length 180 [2025-03-04 11:14:54,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:54,482 INFO L471 AbstractCegarLoop]: Abstraction has 3433 states and 3754 transitions. [2025-03-04 11:14:54,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.214285714285714) internal successors, (213), 14 states have internal predecessors, (213), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:14:54,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 3754 transitions. [2025-03-04 11:14:54,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-03-04 11:14:54,485 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:54,485 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:54,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:54,685 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,SelfDestructingSolverStorable28 [2025-03-04 11:14:54,686 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:54,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:54,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1877457846, now seen corresponding path program 6 times [2025-03-04 11:14:54,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:54,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407182283] [2025-03-04 11:14:54,687 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:14:54,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:54,693 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 203 statements into 9 equivalence classes. [2025-03-04 11:14:54,709 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 203 of 203 statements. [2025-03-04 11:14:54,709 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-03-04 11:14:54,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:54,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886255867] [2025-03-04 11:14:54,710 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:14:54,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:54,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:54,712 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:54,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-04 11:14:54,740 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 203 statements into 9 equivalence classes. [2025-03-04 11:14:54,774 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 180 of 203 statements. [2025-03-04 11:14:54,774 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-03-04 11:14:54,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:54,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:14:54,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:55,111 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2025-03-04 11:14:55,112 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:55,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:55,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407182283] [2025-03-04 11:14:55,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:55,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886255867] [2025-03-04 11:14:55,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886255867] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:55,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:55,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 11:14:55,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898281016] [2025-03-04 11:14:55,244 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:55,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:55,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:55,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:55,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:55,245 INFO L87 Difference]: Start difference. First operand 3433 states and 3754 transitions. Second operand has 9 states, 8 states have (on average 13.75) internal successors, (110), 9 states have internal predecessors, (110), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-04 11:14:55,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:55,521 INFO L93 Difference]: Finished difference Result 3859 states and 4216 transitions. [2025-03-04 11:14:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:14:55,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.75) internal successors, (110), 9 states have internal predecessors, (110), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 203 [2025-03-04 11:14:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:55,530 INFO L225 Difference]: With dead ends: 3859 [2025-03-04 11:14:55,531 INFO L226 Difference]: Without dead ends: 3855 [2025-03-04 11:14:55,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:55,532 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 21 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:55,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 434 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:55,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2025-03-04 11:14:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3490. [2025-03-04 11:14:55,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3490 states, 3301 states have (on average 1.0445319600121175) internal successors, (3448), 3304 states have internal predecessors, (3448), 183 states have call successors, (183), 2 states have call predecessors, (183), 2 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2025-03-04 11:14:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3490 states to 3490 states and 3814 transitions. [2025-03-04 11:14:55,652 INFO L78 Accepts]: Start accepts. Automaton has 3490 states and 3814 transitions. Word has length 203 [2025-03-04 11:14:55,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:55,652 INFO L471 AbstractCegarLoop]: Abstraction has 3490 states and 3814 transitions. [2025-03-04 11:14:55,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.75) internal successors, (110), 9 states have internal predecessors, (110), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-04 11:14:55,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3490 states and 3814 transitions. [2025-03-04 11:14:55,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2025-03-04 11:14:55,655 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:55,655 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:55,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-04 11:14:55,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:55,856 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:55,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:55,857 INFO L85 PathProgramCache]: Analyzing trace with hash -852023435, now seen corresponding path program 2 times [2025-03-04 11:14:55,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:55,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136994892] [2025-03-04 11:14:55,857 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:55,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:55,862 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 218 statements into 2 equivalence classes. [2025-03-04 11:14:55,873 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 218 of 218 statements. [2025-03-04 11:14:55,874 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:55,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:56,023 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:14:56,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:56,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136994892] [2025-03-04 11:14:56,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136994892] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:56,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330371371] [2025-03-04 11:14:56,024 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:56,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:56,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:56,026 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:56,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-04 11:14:56,051 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 218 statements into 2 equivalence classes. [2025-03-04 11:14:56,083 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 218 of 218 statements. [2025-03-04 11:14:56,084 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:56,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:56,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:14:56,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:14:56,227 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:14:56,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330371371] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:56,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:56,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-03-04 11:14:56,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962700302] [2025-03-04 11:14:56,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:56,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-04 11:14:56,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:56,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-04 11:14:56,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:14:56,468 INFO L87 Difference]: Start difference. First operand 3490 states and 3814 transitions. Second operand has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-04 11:14:56,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:56,827 INFO L93 Difference]: Finished difference Result 6761 states and 7436 transitions. [2025-03-04 11:14:56,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 11:14:56,828 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 218 [2025-03-04 11:14:56,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:56,840 INFO L225 Difference]: With dead ends: 6761 [2025-03-04 11:14:56,840 INFO L226 Difference]: Without dead ends: 6760 [2025-03-04 11:14:56,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:14:56,842 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 334 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:56,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 416 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:56,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6760 states. [2025-03-04 11:14:57,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6760 to 6710. [2025-03-04 11:14:57,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6710 states, 6351 states have (on average 1.0483388442764918) internal successors, (6658), 6354 states have internal predecessors, (6658), 353 states have call successors, (353), 2 states have call predecessors, (353), 2 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2025-03-04 11:14:57,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6710 states to 6710 states and 7364 transitions. [2025-03-04 11:14:57,104 INFO L78 Accepts]: Start accepts. Automaton has 6710 states and 7364 transitions. Word has length 218 [2025-03-04 11:14:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:57,104 INFO L471 AbstractCegarLoop]: Abstraction has 6710 states and 7364 transitions. [2025-03-04 11:14:57,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-04 11:14:57,104 INFO L276 IsEmpty]: Start isEmpty. Operand 6710 states and 7364 transitions. [2025-03-04 11:14:57,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-03-04 11:14:57,107 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:57,107 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:57,113 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 11:14:57,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:57,308 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:57,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:57,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1063421233, now seen corresponding path program 7 times [2025-03-04 11:14:57,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:57,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419865855] [2025-03-04 11:14:57,309 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:14:57,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:57,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-03-04 11:14:57,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-03-04 11:14:57,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:57,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 236 proven. 413 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-03-04 11:14:57,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:57,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419865855] [2025-03-04 11:14:57,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419865855] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:57,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836364152] [2025-03-04 11:14:57,455 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:14:57,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:57,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:57,457 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:57,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-04 11:14:57,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-03-04 11:14:57,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-03-04 11:14:57,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:57,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:57,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:14:57,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 404 proven. 245 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-03-04 11:14:57,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:58,029 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 236 proven. 413 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-03-04 11:14:58,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836364152] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:58,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:58,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-03-04 11:14:58,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498417113] [2025-03-04 11:14:58,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:58,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-04 11:14:58,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:58,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-04 11:14:58,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:14:58,031 INFO L87 Difference]: Start difference. First operand 6710 states and 7364 transitions. Second operand has 22 states, 22 states have (on average 17.318181818181817) internal successors, (381), 22 states have internal predecessors, (381), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:14:58,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:58,730 INFO L93 Difference]: Finished difference Result 17665 states and 19427 transitions. [2025-03-04 11:14:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 11:14:58,730 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 17.318181818181817) internal successors, (381), 22 states have internal predecessors, (381), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 226 [2025-03-04 11:14:58,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:58,757 INFO L225 Difference]: With dead ends: 17665 [2025-03-04 11:14:58,757 INFO L226 Difference]: Without dead ends: 12851 [2025-03-04 11:14:58,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 438 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:14:58,764 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 64 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:58,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 505 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:14:58,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12851 states. [2025-03-04 11:14:59,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12851 to 7577. [2025-03-04 11:14:59,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7577 states, 7171 states have (on average 1.046437038070004) internal successors, (7504), 7174 states have internal predecessors, (7504), 400 states have call successors, (400), 2 states have call predecessors, (400), 2 states have return successors, (400), 400 states have call predecessors, (400), 400 states have call successors, (400) [2025-03-04 11:14:59,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7577 states to 7577 states and 8304 transitions. [2025-03-04 11:14:59,116 INFO L78 Accepts]: Start accepts. Automaton has 7577 states and 8304 transitions. Word has length 226 [2025-03-04 11:14:59,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:59,117 INFO L471 AbstractCegarLoop]: Abstraction has 7577 states and 8304 transitions. [2025-03-04 11:14:59,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 17.318181818181817) internal successors, (381), 22 states have internal predecessors, (381), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:14:59,117 INFO L276 IsEmpty]: Start isEmpty. Operand 7577 states and 8304 transitions. [2025-03-04 11:14:59,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-03-04 11:14:59,120 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:59,120 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:59,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-03-04 11:14:59,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:59,321 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:14:59,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1163245196, now seen corresponding path program 8 times [2025-03-04 11:14:59,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:59,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534458304] [2025-03-04 11:14:59,322 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:59,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:59,330 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 226 statements into 2 equivalence classes. [2025-03-04 11:14:59,339 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 226 of 226 statements. [2025-03-04 11:14:59,339 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:59,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:59,549 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 183 proven. 499 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:14:59,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:59,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534458304] [2025-03-04 11:14:59,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534458304] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:59,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977759170] [2025-03-04 11:14:59,550 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:59,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:59,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:59,553 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:14:59,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-04 11:14:59,582 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 226 statements into 2 equivalence classes. [2025-03-04 11:14:59,616 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 226 of 226 statements. [2025-03-04 11:14:59,616 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:59,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:59,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:14:59,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:14:59,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:00,115 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:00,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977759170] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:00,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:00,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2025-03-04 11:15:00,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021655094] [2025-03-04 11:15:00,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:00,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 11:15:00,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:00,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 11:15:00,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:15:00,117 INFO L87 Difference]: Start difference. First operand 7577 states and 8304 transitions. Second operand has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:00,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:00,579 INFO L93 Difference]: Finished difference Result 9007 states and 9851 transitions. [2025-03-04 11:15:00,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:15:00,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 226 [2025-03-04 11:15:00,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:00,593 INFO L225 Difference]: With dead ends: 9007 [2025-03-04 11:15:00,594 INFO L226 Difference]: Without dead ends: 7571 [2025-03-04 11:15:00,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 437 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:15:00,598 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 41 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:00,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 652 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:00,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7571 states. [2025-03-04 11:15:00,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7571 to 7567. [2025-03-04 11:15:00,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7567 states, 7161 states have (on average 1.0437089791928502) internal successors, (7474), 7164 states have internal predecessors, (7474), 400 states have call successors, (400), 2 states have call predecessors, (400), 2 states have return successors, (400), 400 states have call predecessors, (400), 400 states have call successors, (400) [2025-03-04 11:15:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7567 states to 7567 states and 8274 transitions. [2025-03-04 11:15:00,881 INFO L78 Accepts]: Start accepts. Automaton has 7567 states and 8274 transitions. Word has length 226 [2025-03-04 11:15:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:00,882 INFO L471 AbstractCegarLoop]: Abstraction has 7567 states and 8274 transitions. [2025-03-04 11:15:00,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 7567 states and 8274 transitions. [2025-03-04 11:15:00,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2025-03-04 11:15:00,884 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:00,884 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:00,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-03-04 11:15:01,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:01,085 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:01,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:01,086 INFO L85 PathProgramCache]: Analyzing trace with hash -874436968, now seen corresponding path program 9 times [2025-03-04 11:15:01,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:01,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322658471] [2025-03-04 11:15:01,086 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:01,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:01,092 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 249 statements into 11 equivalence classes. [2025-03-04 11:15:01,113 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 249 of 249 statements. [2025-03-04 11:15:01,113 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-04 11:15:01,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:01,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1030214978] [2025-03-04 11:15:01,114 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:01,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:01,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:01,117 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:01,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-04 11:15:01,147 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 249 statements into 11 equivalence classes. [2025-03-04 11:15:01,191 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 157 of 249 statements. [2025-03-04 11:15:01,191 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:15:01,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:01,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:15:01,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:01,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 677 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2025-03-04 11:15:01,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:01,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:01,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322658471] [2025-03-04 11:15:01,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:01,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030214978] [2025-03-04 11:15:01,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030214978] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:01,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:01,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 11:15:01,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360526810] [2025-03-04 11:15:01,647 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:01,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:15:01,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:01,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:15:01,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:15:01,648 INFO L87 Difference]: Start difference. First operand 7567 states and 8274 transitions. Second operand has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:15:02,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:02,213 INFO L93 Difference]: Finished difference Result 11596 states and 12678 transitions. [2025-03-04 11:15:02,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 11:15:02,213 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 249 [2025-03-04 11:15:02,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:02,227 INFO L225 Difference]: With dead ends: 11596 [2025-03-04 11:15:02,227 INFO L226 Difference]: Without dead ends: 7933 [2025-03-04 11:15:02,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:15:02,232 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 110 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:02,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 727 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:15:02,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2025-03-04 11:15:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7672. [2025-03-04 11:15:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7672 states, 7261 states have (on average 1.0431070100537116) internal successors, (7574), 7264 states have internal predecessors, (7574), 405 states have call successors, (405), 2 states have call predecessors, (405), 2 states have return successors, (405), 405 states have call predecessors, (405), 405 states have call successors, (405) [2025-03-04 11:15:02,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7672 states to 7672 states and 8384 transitions. [2025-03-04 11:15:02,480 INFO L78 Accepts]: Start accepts. Automaton has 7672 states and 8384 transitions. Word has length 249 [2025-03-04 11:15:02,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:02,480 INFO L471 AbstractCegarLoop]: Abstraction has 7672 states and 8384 transitions. [2025-03-04 11:15:02,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:15:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand 7672 states and 8384 transitions. [2025-03-04 11:15:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2025-03-04 11:15:02,483 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:02,483 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:02,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:02,712 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,SelfDestructingSolverStorable33 [2025-03-04 11:15:02,713 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:02,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:02,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1852635929, now seen corresponding path program 2 times [2025-03-04 11:15:02,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:02,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664505825] [2025-03-04 11:15:02,713 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:02,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:02,719 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 261 statements into 2 equivalence classes. [2025-03-04 11:15:02,730 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 261 of 261 statements. [2025-03-04 11:15:02,731 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:02,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 995 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-03-04 11:15:02,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:02,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664505825] [2025-03-04 11:15:02,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664505825] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:02,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259731085] [2025-03-04 11:15:02,961 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:02,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:02,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:02,963 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:02,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-04 11:15:02,996 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 261 statements into 2 equivalence classes. [2025-03-04 11:15:03,033 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 261 of 261 statements. [2025-03-04 11:15:03,033 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:03,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:03,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 11:15:03,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 995 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-03-04 11:15:03,187 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:03,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 995 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-03-04 11:15:03,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259731085] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:03,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:03,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2025-03-04 11:15:03,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126144194] [2025-03-04 11:15:03,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:03,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-04 11:15:03,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:03,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-04 11:15:03,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-03-04 11:15:03,463 INFO L87 Difference]: Start difference. First operand 7672 states and 8384 transitions. Second operand has 25 states, 24 states have (on average 17.208333333333332) internal successors, (413), 25 states have internal predecessors, (413), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2025-03-04 11:15:04,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:04,066 INFO L93 Difference]: Finished difference Result 12233 states and 13652 transitions. [2025-03-04 11:15:04,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-04 11:15:04,066 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 17.208333333333332) internal successors, (413), 25 states have internal predecessors, (413), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) Word has length 261 [2025-03-04 11:15:04,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:04,084 INFO L225 Difference]: With dead ends: 12233 [2025-03-04 11:15:04,084 INFO L226 Difference]: Without dead ends: 12232 [2025-03-04 11:15:04,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-03-04 11:15:04,086 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 26 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:04,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 312 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:04,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12232 states. [2025-03-04 11:15:04,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12232 to 12232. [2025-03-04 11:15:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12232 states, 11581 states have (on average 1.0467144460754685) internal successors, (12122), 11584 states have internal predecessors, (12122), 645 states have call successors, (645), 2 states have call predecessors, (645), 2 states have return successors, (645), 645 states have call predecessors, (645), 645 states have call successors, (645) [2025-03-04 11:15:04,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12232 states to 12232 states and 13412 transitions. [2025-03-04 11:15:04,476 INFO L78 Accepts]: Start accepts. Automaton has 12232 states and 13412 transitions. Word has length 261 [2025-03-04 11:15:04,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:04,477 INFO L471 AbstractCegarLoop]: Abstraction has 12232 states and 13412 transitions. [2025-03-04 11:15:04,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 17.208333333333332) internal successors, (413), 25 states have internal predecessors, (413), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2025-03-04 11:15:04,477 INFO L276 IsEmpty]: Start isEmpty. Operand 12232 states and 13412 transitions. [2025-03-04 11:15:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-03-04 11:15:04,480 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:04,480 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:04,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:04,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:04,680 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:04,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash 803055352, now seen corresponding path program 10 times [2025-03-04 11:15:04,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:04,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273496583] [2025-03-04 11:15:04,681 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:04,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:04,687 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 295 statements into 2 equivalence classes. [2025-03-04 11:15:04,701 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 295 of 295 statements. [2025-03-04 11:15:04,701 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:04,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:04,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216564404] [2025-03-04 11:15:04,703 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:04,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:04,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:04,704 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:04,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-04 11:15:04,734 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 295 statements into 2 equivalence classes. [2025-03-04 11:15:04,779 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 295 of 295 statements. [2025-03-04 11:15:04,779 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:04,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:04,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-03-04 11:15:04,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:05,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 66 proven. 1220 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-04 11:15:05,949 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:06,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:06,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273496583] [2025-03-04 11:15:06,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:06,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216564404] [2025-03-04 11:15:06,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216564404] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:06,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:06,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2025-03-04 11:15:06,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117214750] [2025-03-04 11:15:06,133 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:06,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-04 11:15:06,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:06,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-04 11:15:06,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:15:06,134 INFO L87 Difference]: Start difference. First operand 12232 states and 13412 transitions. Second operand has 28 states, 27 states have (on average 8.11111111111111) internal successors, (219), 28 states have internal predecessors, (219), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:15:11,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:15:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:14,879 INFO L93 Difference]: Finished difference Result 13656 states and 14915 transitions. [2025-03-04 11:15:14,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2025-03-04 11:15:14,880 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 8.11111111111111) internal successors, (219), 28 states have internal predecessors, (219), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 295 [2025-03-04 11:15:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:14,903 INFO L225 Difference]: With dead ends: 13656 [2025-03-04 11:15:14,903 INFO L226 Difference]: Without dead ends: 13652 [2025-03-04 11:15:14,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1508 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=608, Invalid=5398, Unknown=0, NotChecked=0, Total=6006 [2025-03-04 11:15:14,910 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 363 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:14,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1033 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2511 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2025-03-04 11:15:14,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13652 states. [2025-03-04 11:15:15,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13652 to 12261. [2025-03-04 11:15:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12261 states, 11609 states have (on average 1.0465156344215694) internal successors, (12149), 11612 states have internal predecessors, (12149), 646 states have call successors, (646), 2 states have call predecessors, (646), 2 states have return successors, (646), 646 states have call predecessors, (646), 646 states have call successors, (646) [2025-03-04 11:15:15,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12261 states to 12261 states and 13441 transitions. [2025-03-04 11:15:15,353 INFO L78 Accepts]: Start accepts. Automaton has 12261 states and 13441 transitions. Word has length 295 [2025-03-04 11:15:15,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:15,353 INFO L471 AbstractCegarLoop]: Abstraction has 12261 states and 13441 transitions. [2025-03-04 11:15:15,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 8.11111111111111) internal successors, (219), 28 states have internal predecessors, (219), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:15:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 12261 states and 13441 transitions. [2025-03-04 11:15:15,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-03-04 11:15:15,356 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:15,356 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:15,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:15,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:15,556 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:15,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1339460618, now seen corresponding path program 11 times [2025-03-04 11:15:15,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:15,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847499732] [2025-03-04 11:15:15,557 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:15,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:15,563 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 295 statements into 13 equivalence classes. [2025-03-04 11:15:15,577 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 295 of 295 statements. [2025-03-04 11:15:15,578 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-04 11:15:15,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:15,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874026870] [2025-03-04 11:15:15,579 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:15,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:15,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:15,582 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:15,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-04 11:15:15,612 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 295 statements into 13 equivalence classes. [2025-03-04 11:15:15,658 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 295 of 295 statements. [2025-03-04 11:15:15,659 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-04 11:15:15,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:15,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 62 conjuncts are in the unsatisfiable core [2025-03-04 11:15:15,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 372 proven. 877 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2025-03-04 11:15:16,932 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:17,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:17,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847499732] [2025-03-04 11:15:17,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:17,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874026870] [2025-03-04 11:15:17,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874026870] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:17,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:17,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2025-03-04 11:15:17,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742893274] [2025-03-04 11:15:17,187 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:17,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-03-04 11:15:17,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:17,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-03-04 11:15:17,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1304, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 11:15:17,188 INFO L87 Difference]: Start difference. First operand 12261 states and 13441 transitions. Second operand has 36 states, 35 states have (on average 6.685714285714286) internal successors, (234), 35 states have internal predecessors, (234), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 11:15:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:19,604 INFO L93 Difference]: Finished difference Result 23644 states and 25903 transitions. [2025-03-04 11:15:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-03-04 11:15:19,604 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.685714285714286) internal successors, (234), 35 states have internal predecessors, (234), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 295 [2025-03-04 11:15:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:19,623 INFO L225 Difference]: With dead ends: 23644 [2025-03-04 11:15:19,624 INFO L226 Difference]: Without dead ends: 14392 [2025-03-04 11:15:19,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2150 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1101, Invalid=6209, Unknown=0, NotChecked=0, Total=7310 [2025-03-04 11:15:19,632 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 337 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 2861 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 2887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:19,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 1102 Invalid, 2887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2861 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-04 11:15:19,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14392 states. [2025-03-04 11:15:20,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14392 to 14315. [2025-03-04 11:15:20,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14315 states, 13555 states have (on average 1.0436001475470307) internal successors, (14146), 13558 states have internal predecessors, (14146), 754 states have call successors, (754), 2 states have call predecessors, (754), 2 states have return successors, (754), 754 states have call predecessors, (754), 754 states have call successors, (754) [2025-03-04 11:15:20,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14315 states to 14315 states and 15654 transitions. [2025-03-04 11:15:20,101 INFO L78 Accepts]: Start accepts. Automaton has 14315 states and 15654 transitions. Word has length 295 [2025-03-04 11:15:20,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:20,101 INFO L471 AbstractCegarLoop]: Abstraction has 14315 states and 15654 transitions. [2025-03-04 11:15:20,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.685714285714286) internal successors, (234), 35 states have internal predecessors, (234), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 11:15:20,101 INFO L276 IsEmpty]: Start isEmpty. Operand 14315 states and 15654 transitions. [2025-03-04 11:15:20,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2025-03-04 11:15:20,104 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:20,104 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:20,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:20,305 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,SelfDestructingSolverStorable36 [2025-03-04 11:15:20,305 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:20,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:20,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1657663982, now seen corresponding path program 12 times [2025-03-04 11:15:20,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:20,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307176500] [2025-03-04 11:15:20,305 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:20,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:20,312 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 318 statements into 14 equivalence classes. [2025-03-04 11:15:20,337 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) and asserted 318 of 318 statements. [2025-03-04 11:15:20,338 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2025-03-04 11:15:20,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 457 proven. 1015 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:20,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:20,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307176500] [2025-03-04 11:15:20,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307176500] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:20,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872520771] [2025-03-04 11:15:20,576 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:20,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:20,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:20,578 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:20,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-04 11:15:20,607 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 318 statements into 14 equivalence classes. [2025-03-04 11:15:20,691 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 272 of 318 statements. [2025-03-04 11:15:20,691 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-03-04 11:15:20,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:20,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 11:15:20,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 0 proven. 1097 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2025-03-04 11:15:21,178 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:21,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872520771] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:21,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:15:21,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 25 [2025-03-04 11:15:21,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889407369] [2025-03-04 11:15:21,295 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:21,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-04 11:15:21,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:21,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-04 11:15:21,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2025-03-04 11:15:21,296 INFO L87 Difference]: Start difference. First operand 14315 states and 15654 transitions. Second operand has 25 states, 25 states have (on average 15.48) internal successors, (387), 25 states have internal predecessors, (387), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:22,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:22,529 INFO L93 Difference]: Finished difference Result 31419 states and 34435 transitions. [2025-03-04 11:15:22,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-04 11:15:22,529 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 15.48) internal successors, (387), 25 states have internal predecessors, (387), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 318 [2025-03-04 11:15:22,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:22,556 INFO L225 Difference]: With dead ends: 31419 [2025-03-04 11:15:22,556 INFO L226 Difference]: Without dead ends: 21619 [2025-03-04 11:15:22,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=272, Invalid=1288, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 11:15:22,567 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 154 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:22,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1356 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 11:15:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21619 states. [2025-03-04 11:15:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21619 to 15818. [2025-03-04 11:15:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15818 states, 14979 states have (on average 1.0439281660992055) internal successors, (15637), 14982 states have internal predecessors, (15637), 833 states have call successors, (833), 2 states have call predecessors, (833), 2 states have return successors, (833), 833 states have call predecessors, (833), 833 states have call successors, (833) [2025-03-04 11:15:23,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15818 states to 15818 states and 17303 transitions. [2025-03-04 11:15:23,124 INFO L78 Accepts]: Start accepts. Automaton has 15818 states and 17303 transitions. Word has length 318 [2025-03-04 11:15:23,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:23,124 INFO L471 AbstractCegarLoop]: Abstraction has 15818 states and 17303 transitions. [2025-03-04 11:15:23,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 15.48) internal successors, (387), 25 states have internal predecessors, (387), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:23,124 INFO L276 IsEmpty]: Start isEmpty. Operand 15818 states and 17303 transitions. [2025-03-04 11:15:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2025-03-04 11:15:23,127 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:23,127 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:23,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2025-03-04 11:15:23,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-04 11:15:23,328 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:23,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:23,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1112817204, now seen corresponding path program 13 times [2025-03-04 11:15:23,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:23,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687789006] [2025-03-04 11:15:23,329 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:23,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:23,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-03-04 11:15:23,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-03-04 11:15:23,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:23,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 374 proven. 1098 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:23,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:23,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687789006] [2025-03-04 11:15:23,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687789006] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:23,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848671954] [2025-03-04 11:15:23,602 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:23,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:23,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:23,604 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:23,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-04 11:15:23,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 318 statements into 1 equivalence classes. [2025-03-04 11:15:23,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 318 of 318 statements. [2025-03-04 11:15:23,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:23,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:23,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:15:23,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 457 proven. 1015 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:23,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:24,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 457 proven. 1015 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:24,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848671954] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:24,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:24,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 24 [2025-03-04 11:15:24,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113954177] [2025-03-04 11:15:24,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:24,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-04 11:15:24,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:24,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-04 11:15:24,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:15:24,266 INFO L87 Difference]: Start difference. First operand 15818 states and 17303 transitions. Second operand has 24 states, 24 states have (on average 16.333333333333332) internal successors, (392), 24 states have internal predecessors, (392), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2025-03-04 11:15:25,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:25,180 INFO L93 Difference]: Finished difference Result 16154 states and 17650 transitions. [2025-03-04 11:15:25,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 11:15:25,180 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 16.333333333333332) internal successors, (392), 24 states have internal predecessors, (392), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) Word has length 318 [2025-03-04 11:15:25,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:25,201 INFO L225 Difference]: With dead ends: 16154 [2025-03-04 11:15:25,201 INFO L226 Difference]: Without dead ends: 13872 [2025-03-04 11:15:25,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 615 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:15:25,209 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 41 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:25,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1429 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 11:15:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13872 states. [2025-03-04 11:15:25,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13872 to 13868. [2025-03-04 11:15:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13868 states, 13131 states have (on average 1.0421140811819358) internal successors, (13684), 13134 states have internal predecessors, (13684), 731 states have call successors, (731), 2 states have call predecessors, (731), 2 states have return successors, (731), 731 states have call predecessors, (731), 731 states have call successors, (731) [2025-03-04 11:15:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13868 states to 13868 states and 15146 transitions. [2025-03-04 11:15:25,921 INFO L78 Accepts]: Start accepts. Automaton has 13868 states and 15146 transitions. Word has length 318 [2025-03-04 11:15:25,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:25,922 INFO L471 AbstractCegarLoop]: Abstraction has 13868 states and 15146 transitions. [2025-03-04 11:15:25,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 16.333333333333332) internal successors, (392), 24 states have internal predecessors, (392), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2025-03-04 11:15:25,922 INFO L276 IsEmpty]: Start isEmpty. Operand 13868 states and 15146 transitions. [2025-03-04 11:15:25,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2025-03-04 11:15:25,925 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:25,925 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:25,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2025-03-04 11:15:26,125 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,SelfDestructingSolverStorable38 [2025-03-04 11:15:26,126 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:26,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:26,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1232158934, now seen corresponding path program 14 times [2025-03-04 11:15:26,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:26,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74868630] [2025-03-04 11:15:26,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:26,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:26,132 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 341 statements into 2 equivalence classes. [2025-03-04 11:15:26,142 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 341 of 341 statements. [2025-03-04 11:15:26,142 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:26,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:26,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2021 backedges. 913 proven. 559 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2025-03-04 11:15:26,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:26,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74868630] [2025-03-04 11:15:26,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74868630] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:26,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902713664] [2025-03-04 11:15:26,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:26,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:26,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:26,280 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:26,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-04 11:15:26,306 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 341 statements into 2 equivalence classes. [2025-03-04 11:15:26,342 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 341 of 341 statements. [2025-03-04 11:15:26,342 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:26,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:26,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:26,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:26,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2021 backedges. 1228 proven. 404 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2025-03-04 11:15:26,568 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2021 backedges. 862 proven. 610 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2025-03-04 11:15:26,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902713664] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:26,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:26,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2025-03-04 11:15:26,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118426939] [2025-03-04 11:15:26,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:26,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:15:26,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:26,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:15:26,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:15:26,754 INFO L87 Difference]: Start difference. First operand 13868 states and 15146 transitions. Second operand has 16 states, 16 states have (on average 17.9375) internal successors, (287), 16 states have internal predecessors, (287), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2025-03-04 11:15:27,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:27,382 INFO L93 Difference]: Finished difference Result 16219 states and 17680 transitions. [2025-03-04 11:15:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:15:27,383 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 17.9375) internal successors, (287), 16 states have internal predecessors, (287), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 341 [2025-03-04 11:15:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:27,400 INFO L225 Difference]: With dead ends: 16219 [2025-03-04 11:15:27,400 INFO L226 Difference]: Without dead ends: 14545 [2025-03-04 11:15:27,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 669 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2025-03-04 11:15:27,405 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 23 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:27,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 310 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:27,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14545 states. [2025-03-04 11:15:27,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14545 to 13839. [2025-03-04 11:15:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13839 states, 13103 states have (on average 1.0421277570022132) internal successors, (13655), 13106 states have internal predecessors, (13655), 730 states have call successors, (730), 2 states have call predecessors, (730), 2 states have return successors, (730), 730 states have call predecessors, (730), 730 states have call successors, (730) [2025-03-04 11:15:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13839 states to 13839 states and 15115 transitions. [2025-03-04 11:15:27,922 INFO L78 Accepts]: Start accepts. Automaton has 13839 states and 15115 transitions. Word has length 341 [2025-03-04 11:15:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:27,922 INFO L471 AbstractCegarLoop]: Abstraction has 13839 states and 15115 transitions. [2025-03-04 11:15:27,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.9375) internal successors, (287), 16 states have internal predecessors, (287), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2025-03-04 11:15:27,923 INFO L276 IsEmpty]: Start isEmpty. Operand 13839 states and 15115 transitions. [2025-03-04 11:15:27,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2025-03-04 11:15:27,926 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:27,926 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:27,933 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 11:15:28,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-04 11:15:28,126 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:28,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:28,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1683125080, now seen corresponding path program 15 times [2025-03-04 11:15:28,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:28,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238587487] [2025-03-04 11:15:28,127 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:28,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:28,133 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 341 statements into 15 equivalence classes. [2025-03-04 11:15:28,158 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 341 of 341 statements. [2025-03-04 11:15:28,158 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:28,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:28,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845330143] [2025-03-04 11:15:28,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:28,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:28,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:28,161 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:28,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-04 11:15:28,191 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 341 statements into 15 equivalence classes. [2025-03-04 11:15:28,228 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 203 of 341 statements. [2025-03-04 11:15:28,228 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-04 11:15:28,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:28,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-04 11:15:28,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 0 proven. 1342 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2025-03-04 11:15:28,627 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:28,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:28,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238587487] [2025-03-04 11:15:28,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:28,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845330143] [2025-03-04 11:15:28,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845330143] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:28,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:28,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 11:15:28,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843925072] [2025-03-04 11:15:28,748 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:28,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:15:28,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:28,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:15:28,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:15:28,749 INFO L87 Difference]: Start difference. First operand 13839 states and 15115 transitions. Second operand has 12 states, 11 states have (on average 14.909090909090908) internal successors, (164), 12 states have internal predecessors, (164), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:29,773 INFO L93 Difference]: Finished difference Result 22238 states and 24309 transitions. [2025-03-04 11:15:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-04 11:15:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.909090909090908) internal successors, (164), 12 states have internal predecessors, (164), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 341 [2025-03-04 11:15:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:29,794 INFO L225 Difference]: With dead ends: 22238 [2025-03-04 11:15:29,794 INFO L226 Difference]: Without dead ends: 14509 [2025-03-04 11:15:29,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=732, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:15:29,806 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 146 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:29,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1211 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 11:15:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14509 states. [2025-03-04 11:15:30,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14509 to 13982. [2025-03-04 11:15:30,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13982 states, 13239 states have (on average 1.0416949920688874) internal successors, (13791), 13242 states have internal predecessors, (13791), 737 states have call successors, (737), 2 states have call predecessors, (737), 2 states have return successors, (737), 737 states have call predecessors, (737), 737 states have call successors, (737) [2025-03-04 11:15:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13982 states to 13982 states and 15265 transitions. [2025-03-04 11:15:30,333 INFO L78 Accepts]: Start accepts. Automaton has 13982 states and 15265 transitions. Word has length 341 [2025-03-04 11:15:30,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:30,334 INFO L471 AbstractCegarLoop]: Abstraction has 13982 states and 15265 transitions. [2025-03-04 11:15:30,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.909090909090908) internal successors, (164), 12 states have internal predecessors, (164), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:30,334 INFO L276 IsEmpty]: Start isEmpty. Operand 13982 states and 15265 transitions. [2025-03-04 11:15:30,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2025-03-04 11:15:30,337 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:30,337 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:30,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2025-03-04 11:15:30,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:30,538 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:30,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:30,538 INFO L85 PathProgramCache]: Analyzing trace with hash 32510797, now seen corresponding path program 16 times [2025-03-04 11:15:30,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:30,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841914567] [2025-03-04 11:15:30,538 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:30,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:30,544 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 364 statements into 2 equivalence classes. [2025-03-04 11:15:30,562 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 364 of 364 statements. [2025-03-04 11:15:30,562 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:30,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:30,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538133761] [2025-03-04 11:15:30,564 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:30,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:30,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:30,566 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:30,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-03-04 11:15:30,595 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 364 statements into 2 equivalence classes. [2025-03-04 11:15:30,659 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 364 of 364 statements. [2025-03-04 11:15:30,659 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:30,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:30,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 52 conjuncts are in the unsatisfiable core [2025-03-04 11:15:30,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:32,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 63 proven. 1885 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2025-03-04 11:15:32,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:32,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:32,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841914567] [2025-03-04 11:15:32,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:32,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538133761] [2025-03-04 11:15:32,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538133761] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:32,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:32,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2025-03-04 11:15:32,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267747087] [2025-03-04 11:15:32,433 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:32,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-04 11:15:32,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:32,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-04 11:15:32,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:15:32,434 INFO L87 Difference]: Start difference. First operand 13982 states and 15265 transitions. Second operand has 28 states, 27 states have (on average 8.185185185185185) internal successors, (221), 28 states have internal predecessors, (221), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2025-03-04 11:15:39,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:15:46,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:46,714 INFO L93 Difference]: Finished difference Result 15886 states and 17267 transitions. [2025-03-04 11:15:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-04 11:15:46,715 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 8.185185185185185) internal successors, (221), 28 states have internal predecessors, (221), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) Word has length 364 [2025-03-04 11:15:46,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:46,763 INFO L225 Difference]: With dead ends: 15886 [2025-03-04 11:15:46,764 INFO L226 Difference]: Without dead ends: 15882 [2025-03-04 11:15:46,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 350 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=542, Invalid=3235, Unknown=5, NotChecked=0, Total=3782 [2025-03-04 11:15:46,767 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 358 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 44 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:46,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1023 Invalid, 2296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2250 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2025-03-04 11:15:46,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15882 states. [2025-03-04 11:15:47,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15882 to 13982. [2025-03-04 11:15:47,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13982 states, 13239 states have (on average 1.0415439232570436) internal successors, (13789), 13242 states have internal predecessors, (13789), 737 states have call successors, (737), 2 states have call predecessors, (737), 2 states have return successors, (737), 737 states have call predecessors, (737), 737 states have call successors, (737) [2025-03-04 11:15:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13982 states to 13982 states and 15263 transitions. [2025-03-04 11:15:47,322 INFO L78 Accepts]: Start accepts. Automaton has 13982 states and 15263 transitions. Word has length 364 [2025-03-04 11:15:47,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:47,322 INFO L471 AbstractCegarLoop]: Abstraction has 13982 states and 15263 transitions. [2025-03-04 11:15:47,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 8.185185185185185) internal successors, (221), 28 states have internal predecessors, (221), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2025-03-04 11:15:47,322 INFO L276 IsEmpty]: Start isEmpty. Operand 13982 states and 15263 transitions. [2025-03-04 11:15:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2025-03-04 11:15:47,325 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:47,325 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:47,333 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 11:15:47,530 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,SelfDestructingSolverStorable41 [2025-03-04 11:15:47,530 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:47,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:47,530 INFO L85 PathProgramCache]: Analyzing trace with hash -512083859, now seen corresponding path program 17 times [2025-03-04 11:15:47,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:47,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840931785] [2025-03-04 11:15:47,531 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:47,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:47,538 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 364 statements into 16 equivalence classes. [2025-03-04 11:15:47,561 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 364 of 364 statements. [2025-03-04 11:15:47,562 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-04 11:15:47,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:47,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799569874] [2025-03-04 11:15:47,563 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:47,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:47,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:47,565 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 11:15:47,567 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 11:15:47,599 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 364 statements into 16 equivalence classes. [2025-03-04 11:15:47,672 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 364 of 364 statements. [2025-03-04 11:15:47,672 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-04 11:15:47,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:47,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 87 conjuncts are in the unsatisfiable core [2025-03-04 11:15:47,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:50,888 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:15:51,379 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-04 11:15:51,912 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-04 11:15:52,548 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2025-03-04 11:15:52,593 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2025-03-04 11:15:52,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2365 backedges. 42 proven. 1980 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2025-03-04 11:15:52,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:53,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:53,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840931785] [2025-03-04 11:15:53,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:53,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799569874] [2025-03-04 11:15:53,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799569874] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:53,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:53,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2025-03-04 11:15:53,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570308377] [2025-03-04 11:15:53,005 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:53,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-03-04 11:15:53,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:53,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-03-04 11:15:53,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=2825, Unknown=0, NotChecked=0, Total=3192 [2025-03-04 11:15:53,007 INFO L87 Difference]: Start difference. First operand 13982 states and 15263 transitions. Second operand has 53 states, 51 states have (on average 5.705882352941177) internal successors, (291), 50 states have internal predecessors, (291), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:15:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:59,060 INFO L93 Difference]: Finished difference Result 14754 states and 16073 transitions. [2025-03-04 11:15:59,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2025-03-04 11:15:59,061 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 51 states have (on average 5.705882352941177) internal successors, (291), 50 states have internal predecessors, (291), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) Word has length 364 [2025-03-04 11:15:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:59,077 INFO L225 Difference]: With dead ends: 14754 [2025-03-04 11:15:59,077 INFO L226 Difference]: Without dead ends: 14750 [2025-03-04 11:15:59,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5148 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1479, Invalid=15813, Unknown=0, NotChecked=0, Total=17292 [2025-03-04 11:15:59,084 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 250 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 5474 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 5506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 5474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:59,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 1742 Invalid, 5506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 5474 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-03-04 11:15:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14750 states. [2025-03-04 11:15:59,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14750 to 13982. [2025-03-04 11:15:59,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13982 states, 13239 states have (on average 1.0413928544451998) internal successors, (13787), 13242 states have internal predecessors, (13787), 737 states have call successors, (737), 2 states have call predecessors, (737), 2 states have return successors, (737), 737 states have call predecessors, (737), 737 states have call successors, (737) [2025-03-04 11:15:59,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13982 states to 13982 states and 15261 transitions. [2025-03-04 11:15:59,601 INFO L78 Accepts]: Start accepts. Automaton has 13982 states and 15261 transitions. Word has length 364 [2025-03-04 11:15:59,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:59,603 INFO L471 AbstractCegarLoop]: Abstraction has 13982 states and 15261 transitions. [2025-03-04 11:15:59,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 51 states have (on average 5.705882352941177) internal successors, (291), 50 states have internal predecessors, (291), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:15:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 13982 states and 15261 transitions. [2025-03-04 11:15:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2025-03-04 11:15:59,608 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:59,609 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:59,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:59,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2025-03-04 11:15:59,809 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:15:59,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash -132748880, now seen corresponding path program 18 times [2025-03-04 11:15:59,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:59,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507109161] [2025-03-04 11:15:59,809 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:59,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:59,816 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 387 statements into 17 equivalence classes. [2025-03-04 11:15:59,836 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) and asserted 387 of 387 statements. [2025-03-04 11:15:59,836 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2025-03-04 11:15:59,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:59,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980229181] [2025-03-04 11:15:59,838 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:59,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:59,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:59,840 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:59,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2025-03-04 11:15:59,869 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 387 statements into 17 equivalence classes. [2025-03-04 11:15:59,938 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) and asserted 364 of 387 statements. [2025-03-04 11:15:59,938 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2025-03-04 11:15:59,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:59,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 68 conjuncts are in the unsatisfiable core [2025-03-04 11:15:59,944 INFO L279 TraceCheckSpWp]: Computing forward predicates...