./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound100.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8992f77e1fd54a8bb994486a2a9c080f82c859aa0b91f7c26a6ea8e17914eccd --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:24:37,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:24:37,059 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:24:37,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:24:37,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:24:37,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:24:37,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:24:37,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:24:37,086 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:24:37,086 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:24:37,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:24:37,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:24:37,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:24:37,088 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:24:37,088 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:24:37,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:24:37,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:24:37,088 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:24:37,089 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:24:37,090 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:24:37,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:24:37,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:24:37,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:24:37,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:24:37,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:24:37,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:24:37,090 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:24:37,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:24:37,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:24:37,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:24:37,091 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:24:37,091 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:24:37,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:24:37,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:24:37,091 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 -> 8992f77e1fd54a8bb994486a2a9c080f82c859aa0b91f7c26a6ea8e17914eccd [2025-03-17 15:24:37,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:24:37,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:24:37,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:24:37,292 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:24:37,292 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:24:37,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound100.c [2025-03-17 15:24:38,411 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a9aefe6/09b047ae7681480dbedcdfa82cbcc347/FLAGacb1fe1ba [2025-03-17 15:24:38,622 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:24:38,623 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo2-ll2_valuebound100.c [2025-03-17 15:24:38,631 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a9aefe6/09b047ae7681480dbedcdfa82cbcc347/FLAGacb1fe1ba [2025-03-17 15:24:38,645 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77a9aefe6/09b047ae7681480dbedcdfa82cbcc347 [2025-03-17 15:24:38,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:24:38,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:24:38,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:24:38,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:24:38,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:24:38,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759f54cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38, skipping insertion in model container [2025-03-17 15:24:38,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:24:38,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:24:38,781 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:24:38,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:24:38,807 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:24:38,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38 WrapperNode [2025-03-17 15:24:38,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:24:38,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:24:38,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:24:38,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:24:38,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,830 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2025-03-17 15:24:38,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:24:38,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:24:38,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:24:38,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:24:38,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,840 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,851 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 15:24:38,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,856 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:24:38,863 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:24:38,863 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:24:38,863 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:24:38,864 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (1/1) ... [2025-03-17 15:24:38,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:24:38,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:38,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 15:24:38,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 15:24:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:24:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 15:24:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 15:24:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:24:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:24:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:24:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:24:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:24:38,940 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:24:38,942 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:24:39,135 INFO L? ?]: Removed 64 outVars from TransFormulas that were not future-live. [2025-03-17 15:24:39,135 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:24:39,144 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:24:39,144 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:24:39,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:24:39 BoogieIcfgContainer [2025-03-17 15:24:39,144 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:24:39,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:24:39,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:24:39,153 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:24:39,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:24:38" (1/3) ... [2025-03-17 15:24:39,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e11ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:24:39, skipping insertion in model container [2025-03-17 15:24:39,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:24:38" (2/3) ... [2025-03-17 15:24:39,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e11ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:24:39, skipping insertion in model container [2025-03-17 15:24:39,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:24:39" (3/3) ... [2025-03-17 15:24:39,154 INFO L128 eAbstractionObserver]: Analyzing ICFG geo2-ll2_valuebound100.c [2025-03-17 15:24:39,164 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:24:39,165 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo2-ll2_valuebound100.c that has 3 procedures, 75 locations, 1 initial locations, 1 loop locations, and 28 error locations. [2025-03-17 15:24:39,202 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:24:39,212 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;@70065f12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:24:39,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-03-17 15:24:39,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 40 states have (on average 1.8) internal successors, (72), 68 states have internal predecessors, (72), 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) [2025-03-17 15:24:39,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 15:24:39,219 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:39,220 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:39,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:39,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:39,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1886600881, now seen corresponding path program 1 times [2025-03-17 15:24:39,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:39,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493533231] [2025-03-17 15:24:39,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:39,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:39,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:24:39,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:24:39,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:39,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 15:24:39,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:39,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493533231] [2025-03-17 15:24:39,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493533231] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:39,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756635714] [2025-03-17 15:24:39,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:39,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:39,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:39,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:39,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:24:39,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:24:39,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:24:39,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:39,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:39,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 15:24:39,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:39,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 15:24:39,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:24:39,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756635714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:24:39,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:39,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 15:24:39,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357127962] [2025-03-17 15:24:39,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:39,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 15:24:39,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:39,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 15:24:39,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:24:39,394 INFO L87 Difference]: Start difference. First operand has 75 states, 40 states have (on average 1.8) internal successors, (72), 68 states have internal predecessors, (72), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:24:39,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:39,405 INFO L93 Difference]: Finished difference Result 148 states and 161 transitions. [2025-03-17 15:24:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 15:24:39,406 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2025-03-17 15:24:39,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:39,409 INFO L225 Difference]: With dead ends: 148 [2025-03-17 15:24:39,409 INFO L226 Difference]: Without dead ends: 71 [2025-03-17 15:24:39,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:24:39,412 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:39,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:24:39,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-03-17 15:24:39,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-03-17 15:24:39,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 38 states have (on average 1.736842105263158) internal successors, (66), 65 states have internal predecessors, (66), 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) [2025-03-17 15:24:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2025-03-17 15:24:39,434 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 14 [2025-03-17 15:24:39,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:39,434 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2025-03-17 15:24:39,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:24:39,435 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2025-03-17 15:24:39,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 15:24:39,435 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:39,435 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:39,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 15:24:39,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 15:24:39,636 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:39,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash 90573043, now seen corresponding path program 1 times [2025-03-17 15:24:39,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:39,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341860695] [2025-03-17 15:24:39,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:39,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:39,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:24:39,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:24:39,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:39,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:39,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1267268675] [2025-03-17 15:24:39,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:39,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:39,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:39,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:39,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:24:39,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:24:39,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:24:39,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:39,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:39,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:24:39,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:39,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:24:39,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:24:39,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:39,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341860695] [2025-03-17 15:24:39,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:39,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267268675] [2025-03-17 15:24:39,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267268675] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:24:39,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:24:39,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:24:39,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441422555] [2025-03-17 15:24:39,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:39,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:24:39,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:39,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:24:39,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:24:39,744 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:24:40,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:40,001 INFO L93 Difference]: Finished difference Result 109 states and 127 transitions. [2025-03-17 15:24:40,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:24:40,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-03-17 15:24:40,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:40,003 INFO L225 Difference]: With dead ends: 109 [2025-03-17 15:24:40,003 INFO L226 Difference]: Without dead ends: 101 [2025-03-17 15:24:40,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:24:40,004 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 88 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:40,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 37 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:24:40,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-03-17 15:24:40,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2025-03-17 15:24:40,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 59 states have (on average 1.694915254237288) internal successors, (100), 86 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) [2025-03-17 15:24:40,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions. [2025-03-17 15:24:40,011 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 14 [2025-03-17 15:24:40,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:40,012 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 108 transitions. [2025-03-17 15:24:40,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:24:40,012 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions. [2025-03-17 15:24:40,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-17 15:24:40,012 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:40,012 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:40,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:40,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-17 15:24:40,217 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:40,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:40,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1487202936, now seen corresponding path program 1 times [2025-03-17 15:24:40,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:40,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592331205] [2025-03-17 15:24:40,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:40,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:40,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 15:24:40,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 15:24:40,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:40,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:40,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626277354] [2025-03-17 15:24:40,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:40,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:40,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:40,237 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:40,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:24:40,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 15:24:40,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 15:24:40,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:40,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:40,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:24:40,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:24:40,296 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:24:40,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592331205] [2025-03-17 15:24:40,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626277354] [2025-03-17 15:24:40,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626277354] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:24:40,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:24:40,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:24:40,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134577543] [2025-03-17 15:24:40,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:40,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:24:40,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:40,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:24:40,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:24:40,297 INFO L87 Difference]: Start difference. First operand 93 states and 108 transitions. 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) [2025-03-17 15:24:40,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:40,433 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2025-03-17 15:24:40,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:24:40,434 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 [2025-03-17 15:24:40,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:40,435 INFO L225 Difference]: With dead ends: 109 [2025-03-17 15:24:40,435 INFO L226 Difference]: Without dead ends: 101 [2025-03-17 15:24:40,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:24:40,435 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 59 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:40,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 46 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:24:40,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-03-17 15:24:40,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 95. [2025-03-17 15:24:40,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 88 states have internal predecessors, (96), 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) [2025-03-17 15:24:40,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 104 transitions. [2025-03-17 15:24:40,446 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 104 transitions. Word has length 15 [2025-03-17 15:24:40,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:40,446 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 104 transitions. [2025-03-17 15:24:40,446 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) [2025-03-17 15:24:40,446 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 104 transitions. [2025-03-17 15:24:40,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-17 15:24:40,447 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:40,447 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:40,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:40,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:40,648 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:40,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:40,649 INFO L85 PathProgramCache]: Analyzing trace with hash 2026385613, now seen corresponding path program 1 times [2025-03-17 15:24:40,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:40,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358170580] [2025-03-17 15:24:40,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:40,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:40,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 15:24:40,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 15:24:40,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:40,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:40,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884392175] [2025-03-17 15:24:40,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:40,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:40,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:40,674 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:40,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:24:40,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 15:24:40,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 15:24:40,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:40,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:40,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:24:40,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:24:40,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:24:40,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:40,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358170580] [2025-03-17 15:24:40,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:40,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884392175] [2025-03-17 15:24:40,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884392175] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:24:40,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:24:40,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:24:40,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506156698] [2025-03-17 15:24:40,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:40,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:24:40,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:40,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:24:40,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:24:40,754 INFO L87 Difference]: Start difference. First operand 95 states and 104 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) [2025-03-17 15:24:40,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:40,878 INFO L93 Difference]: Finished difference Result 106 states and 115 transitions. [2025-03-17 15:24:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:24:40,878 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 [2025-03-17 15:24:40,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:40,879 INFO L225 Difference]: With dead ends: 106 [2025-03-17 15:24:40,879 INFO L226 Difference]: Without dead ends: 103 [2025-03-17 15:24:40,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:24:40,879 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 80 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:40,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 37 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:24:40,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-17 15:24:40,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2025-03-17 15:24:40,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 63 states have (on average 1.5396825396825398) internal successors, (97), 90 states have internal predecessors, (97), 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) [2025-03-17 15:24:40,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2025-03-17 15:24:40,885 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 20 [2025-03-17 15:24:40,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:40,885 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2025-03-17 15:24:40,886 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) [2025-03-17 15:24:40,886 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2025-03-17 15:24:40,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 15:24:40,886 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:40,886 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:40,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:41,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:41,090 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:41,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:41,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1606555422, now seen corresponding path program 1 times [2025-03-17 15:24:41,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:41,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793185856] [2025-03-17 15:24:41,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:41,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:41,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 15:24:41,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 15:24:41,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:41,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:41,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536934583] [2025-03-17 15:24:41,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:41,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:41,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:41,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:41,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:24:41,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 15:24:41,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 15:24:41,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:41,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:41,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:24:41,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:24:41,174 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:24:41,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:41,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793185856] [2025-03-17 15:24:41,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:41,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536934583] [2025-03-17 15:24:41,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536934583] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:24:41,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:24:41,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:24:41,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053308495] [2025-03-17 15:24:41,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:41,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:24:41,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:41,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:24:41,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:24:41,175 INFO L87 Difference]: Start difference. First operand 97 states and 105 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) [2025-03-17 15:24:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:41,292 INFO L93 Difference]: Finished difference Result 106 states and 112 transitions. [2025-03-17 15:24:41,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:24:41,292 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 [2025-03-17 15:24:41,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:41,293 INFO L225 Difference]: With dead ends: 106 [2025-03-17 15:24:41,293 INFO L226 Difference]: Without dead ends: 103 [2025-03-17 15:24:41,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:24:41,294 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 78 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:41,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 37 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:24:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-17 15:24:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2025-03-17 15:24:41,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 65 states have (on average 1.5076923076923077) internal successors, (98), 92 states have internal predecessors, (98), 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) [2025-03-17 15:24:41,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 106 transitions. [2025-03-17 15:24:41,299 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 106 transitions. Word has length 21 [2025-03-17 15:24:41,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:41,300 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 106 transitions. [2025-03-17 15:24:41,300 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) [2025-03-17 15:24:41,300 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 106 transitions. [2025-03-17 15:24:41,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-17 15:24:41,301 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:41,301 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:41,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 15:24:41,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:41,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:41,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:41,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1736389483, now seen corresponding path program 1 times [2025-03-17 15:24:41,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:41,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219114029] [2025-03-17 15:24:41,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:41,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:41,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 15:24:41,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 15:24:41,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:41,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:41,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419473653] [2025-03-17 15:24:41,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:41,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:41,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:41,518 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:41,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:24:41,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 15:24:41,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 15:24:41,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:41,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:41,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:24:41,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:41,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:24:41,584 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:24:41,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:41,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219114029] [2025-03-17 15:24:41,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:41,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419473653] [2025-03-17 15:24:41,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419473653] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:24:41,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:24:41,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:24:41,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089789758] [2025-03-17 15:24:41,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:41,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:24:41,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:41,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:24:41,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:24:41,585 INFO L87 Difference]: Start difference. First operand 99 states and 106 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2025-03-17 15:24:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:41,726 INFO L93 Difference]: Finished difference Result 107 states and 109 transitions. [2025-03-17 15:24:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:24:41,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 [2025-03-17 15:24:41,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:41,727 INFO L225 Difference]: With dead ends: 107 [2025-03-17 15:24:41,727 INFO L226 Difference]: Without dead ends: 93 [2025-03-17 15:24:41,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:24:41,728 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 20 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:41,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 68 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:24:41,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2025-03-17 15:24:41,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2025-03-17 15:24:41,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 57 states have (on average 1.5263157894736843) internal successors, (87), 84 states have internal predecessors, (87), 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) [2025-03-17 15:24:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2025-03-17 15:24:41,734 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 22 [2025-03-17 15:24:41,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:41,734 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2025-03-17 15:24:41,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2025-03-17 15:24:41,734 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2025-03-17 15:24:41,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-17 15:24:41,734 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:41,735 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] [2025-03-17 15:24:41,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:41,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:41,939 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:41,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:41,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1030291984, now seen corresponding path program 1 times [2025-03-17 15:24:41,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:41,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757425687] [2025-03-17 15:24:41,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:41,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:41,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:24:41,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:24:41,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:41,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:24:42,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:42,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757425687] [2025-03-17 15:24:42,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757425687] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:24:42,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:24:42,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:24:42,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395643714] [2025-03-17 15:24:42,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:42,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:24:42,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:42,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:24:42,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:24:42,024 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2025-03-17 15:24:42,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:42,051 INFO L93 Difference]: Finished difference Result 93 states and 95 transitions. [2025-03-17 15:24:42,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:24:42,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 30 [2025-03-17 15:24:42,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:42,055 INFO L225 Difference]: With dead ends: 93 [2025-03-17 15:24:42,055 INFO L226 Difference]: Without dead ends: 91 [2025-03-17 15:24:42,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:24:42,056 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 1 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:42,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 133 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:24:42,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2025-03-17 15:24:42,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2025-03-17 15:24:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 84 states have internal predecessors, (85), 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) [2025-03-17 15:24:42,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 93 transitions. [2025-03-17 15:24:42,060 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 93 transitions. Word has length 30 [2025-03-17 15:24:42,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:42,061 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 93 transitions. [2025-03-17 15:24:42,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2025-03-17 15:24:42,061 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 93 transitions. [2025-03-17 15:24:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-17 15:24:42,061 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:42,061 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, 1, 1] [2025-03-17 15:24:42,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 15:24:42,062 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:42,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:42,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2007310351, now seen corresponding path program 1 times [2025-03-17 15:24:42,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:42,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226022449] [2025-03-17 15:24:42,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:42,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:42,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:24:42,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:24:42,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:42,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:42,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719001081] [2025-03-17 15:24:42,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:42,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:42,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:42,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:42,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 15:24:42,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:24:42,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:24:42,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:42,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:42,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:24:42,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:24:42,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:42,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:42,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226022449] [2025-03-17 15:24:42,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:42,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719001081] [2025-03-17 15:24:42,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719001081] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:42,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:42,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-17 15:24:42,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628145871] [2025-03-17 15:24:42,420 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:42,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:24:42,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:42,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:24:42,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:24:42,421 INFO L87 Difference]: Start difference. First operand 91 states and 93 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (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) [2025-03-17 15:24:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:42,602 INFO L93 Difference]: Finished difference Result 91 states and 93 transitions. [2025-03-17 15:24:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:24:42,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (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 38 [2025-03-17 15:24:42,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:42,603 INFO L225 Difference]: With dead ends: 91 [2025-03-17 15:24:42,604 INFO L226 Difference]: Without dead ends: 85 [2025-03-17 15:24:42,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:24:42,604 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 28 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:42,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 100 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:24:42,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2025-03-17 15:24:42,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2025-03-17 15:24:42,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 78 states have internal predecessors, (79), 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) [2025-03-17 15:24:42,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2025-03-17 15:24:42,612 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 38 [2025-03-17 15:24:42,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:42,612 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2025-03-17 15:24:42,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (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) [2025-03-17 15:24:42,613 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2025-03-17 15:24:42,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-17 15:24:42,613 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:42,613 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, 1] [2025-03-17 15:24:42,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:42,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:42,814 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:42,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:42,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2097078764, now seen corresponding path program 1 times [2025-03-17 15:24:42,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:42,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839168231] [2025-03-17 15:24:42,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:42,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:42,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:24:42,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:24:42,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:42,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:42,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728734407] [2025-03-17 15:24:42,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:42,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:42,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:42,827 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:42,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 15:24:42,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:24:42,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:24:42,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:42,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:42,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 15:24:42,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:24:43,019 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:43,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:43,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839168231] [2025-03-17 15:24:43,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:43,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728734407] [2025-03-17 15:24:43,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728734407] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:43,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:43,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-17 15:24:43,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009458399] [2025-03-17 15:24:43,292 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:43,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:24:43,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:43,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:24:43,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:24:43,293 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:24:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:43,551 INFO L93 Difference]: Finished difference Result 121 states and 136 transitions. [2025-03-17 15:24:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:24:43,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2025-03-17 15:24:43,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:43,552 INFO L225 Difference]: With dead ends: 121 [2025-03-17 15:24:43,552 INFO L226 Difference]: Without dead ends: 115 [2025-03-17 15:24:43,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:24:43,553 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 59 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:43,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 103 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:24:43,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2025-03-17 15:24:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 107. [2025-03-17 15:24:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 99 states have internal predecessors, (109), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 15:24:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2025-03-17 15:24:43,561 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 39 [2025-03-17 15:24:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:43,561 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2025-03-17 15:24:43,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:24:43,562 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2025-03-17 15:24:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-17 15:24:43,562 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:43,562 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, 1] [2025-03-17 15:24:43,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 15:24:43,763 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,SelfDestructingSolverStorable8 [2025-03-17 15:24:43,763 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:43,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:43,763 INFO L85 PathProgramCache]: Analyzing trace with hash -520804533, now seen corresponding path program 1 times [2025-03-17 15:24:43,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:43,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606097896] [2025-03-17 15:24:43,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:43,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:43,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:24:43,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:24:43,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:43,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604438796] [2025-03-17 15:24:43,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:43,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:43,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:43,782 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:43,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 15:24:43,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:24:43,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:24:43,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:43,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:43,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:24:43,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:24:43,894 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:44,208 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:24:44,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:44,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606097896] [2025-03-17 15:24:44,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:44,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604438796] [2025-03-17 15:24:44,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604438796] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:24:44,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:24:44,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-17 15:24:44,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570722473] [2025-03-17 15:24:44,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:44,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:24:44,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:44,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:24:44,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:24:44,210 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:24:44,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:44,515 INFO L93 Difference]: Finished difference Result 155 states and 195 transitions. [2025-03-17 15:24:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:24:44,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 42 [2025-03-17 15:24:44,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:44,517 INFO L225 Difference]: With dead ends: 155 [2025-03-17 15:24:44,517 INFO L226 Difference]: Without dead ends: 153 [2025-03-17 15:24:44,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:24:44,517 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 264 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:44,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 76 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:24:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-03-17 15:24:44,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 133. [2025-03-17 15:24:44,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 104 states have (on average 1.4519230769230769) internal successors, (151), 124 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) [2025-03-17 15:24:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 163 transitions. [2025-03-17 15:24:44,524 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 163 transitions. Word has length 42 [2025-03-17 15:24:44,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:44,525 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 163 transitions. [2025-03-17 15:24:44,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:24:44,525 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 163 transitions. [2025-03-17 15:24:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 15:24:44,525 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:44,526 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, 1] [2025-03-17 15:24:44,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:44,726 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,SelfDestructingSolverStorable9 [2025-03-17 15:24:44,726 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:44,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:44,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1034928680, now seen corresponding path program 1 times [2025-03-17 15:24:44,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:44,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697393801] [2025-03-17 15:24:44,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:44,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:44,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:24:44,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:24:44,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:44,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:44,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440850120] [2025-03-17 15:24:44,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:44,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:44,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:44,740 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:44,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 15:24:44,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:24:44,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:24:44,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:44,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:44,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:24:44,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:44,917 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:24:44,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:45,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:45,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697393801] [2025-03-17 15:24:45,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:45,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440850120] [2025-03-17 15:24:45,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440850120] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:45,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:45,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:24:45,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546019072] [2025-03-17 15:24:45,100 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:45,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:24:45,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:45,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:24:45,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:24:45,101 INFO L87 Difference]: Start difference. First operand 133 states and 163 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 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) [2025-03-17 15:24:45,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:45,251 INFO L93 Difference]: Finished difference Result 133 states and 163 transitions. [2025-03-17 15:24:45,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:24:45,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 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 43 [2025-03-17 15:24:45,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:45,252 INFO L225 Difference]: With dead ends: 133 [2025-03-17 15:24:45,252 INFO L226 Difference]: Without dead ends: 127 [2025-03-17 15:24:45,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:24:45,252 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:45,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 91 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:24:45,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2025-03-17 15:24:45,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2025-03-17 15:24:45,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.37) internal successors, (137), 114 states have internal predecessors, (137), 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) [2025-03-17 15:24:45,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 149 transitions. [2025-03-17 15:24:45,257 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 149 transitions. Word has length 43 [2025-03-17 15:24:45,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:45,258 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 149 transitions. [2025-03-17 15:24:45,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 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) [2025-03-17 15:24:45,258 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 149 transitions. [2025-03-17 15:24:45,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-17 15:24:45,260 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:45,260 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, 1] [2025-03-17 15:24:45,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 15:24:45,460 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,SelfDestructingSolverStorable10 [2025-03-17 15:24:45,461 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:45,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:45,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2018018025, now seen corresponding path program 1 times [2025-03-17 15:24:45,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:45,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816369555] [2025-03-17 15:24:45,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:45,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:45,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 15:24:45,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 15:24:45,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:45,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:45,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105953884] [2025-03-17 15:24:45,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:45,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:45,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:45,481 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:45,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 15:24:45,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 15:24:45,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 15:24:45,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:45,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:45,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:24:45,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:24:45,648 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:45,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:45,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816369555] [2025-03-17 15:24:45,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:45,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105953884] [2025-03-17 15:24:45,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105953884] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:45,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:45,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-17 15:24:45,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487603170] [2025-03-17 15:24:45,737 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:45,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:24:45,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:45,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:24:45,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:24:45,738 INFO L87 Difference]: Start difference. First operand 123 states and 149 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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) [2025-03-17 15:24:45,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:45,862 INFO L93 Difference]: Finished difference Result 123 states and 149 transitions. [2025-03-17 15:24:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:24:45,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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 44 [2025-03-17 15:24:45,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:45,863 INFO L225 Difference]: With dead ends: 123 [2025-03-17 15:24:45,863 INFO L226 Difference]: Without dead ends: 120 [2025-03-17 15:24:45,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:24:45,864 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 24 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:45,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 100 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:24:45,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-03-17 15:24:45,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-03-17 15:24:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.3) internal successors, (130), 111 states have internal predecessors, (130), 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) [2025-03-17 15:24:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 142 transitions. [2025-03-17 15:24:45,872 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 142 transitions. Word has length 44 [2025-03-17 15:24:45,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:45,872 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 142 transitions. [2025-03-17 15:24:45,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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) [2025-03-17 15:24:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 142 transitions. [2025-03-17 15:24:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-17 15:24:45,872 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:45,872 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, 1] [2025-03-17 15:24:45,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:46,078 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,SelfDestructingSolverStorable11 [2025-03-17 15:24:46,078 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:46,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:46,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1865950650, now seen corresponding path program 1 times [2025-03-17 15:24:46,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:46,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687480429] [2025-03-17 15:24:46,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:46,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:46,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:24:46,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:24:46,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:46,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:46,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370695850] [2025-03-17 15:24:46,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:46,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:46,089 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:46,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 15:24:46,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:24:46,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:24:46,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:46,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:46,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-17 15:24:46,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:24:46,279 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:46,811 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:24:46,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:46,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687480429] [2025-03-17 15:24:46,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:46,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370695850] [2025-03-17 15:24:46,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370695850] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:24:46,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:24:46,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2025-03-17 15:24:46,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60595022] [2025-03-17 15:24:46,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:46,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 15:24:46,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:46,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 15:24:46,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:24:46,814 INFO L87 Difference]: Start difference. First operand 120 states and 142 transitions. Second operand has 16 states, 15 states have (on average 4.8) internal successors, (72), 16 states have internal predecessors, (72), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:24:47,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:47,376 INFO L93 Difference]: Finished difference Result 150 states and 172 transitions. [2025-03-17 15:24:47,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:24:47,376 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 16 states have internal predecessors, (72), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 45 [2025-03-17 15:24:47,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:47,377 INFO L225 Difference]: With dead ends: 150 [2025-03-17 15:24:47,377 INFO L226 Difference]: Without dead ends: 147 [2025-03-17 15:24:47,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2025-03-17 15:24:47,378 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 298 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:47,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 125 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:24:47,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2025-03-17 15:24:47,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 121. [2025-03-17 15:24:47,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.233009708737864) internal successors, (127), 112 states have internal predecessors, (127), 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) [2025-03-17 15:24:47,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 139 transitions. [2025-03-17 15:24:47,382 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 139 transitions. Word has length 45 [2025-03-17 15:24:47,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:47,382 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 139 transitions. [2025-03-17 15:24:47,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 16 states have internal predecessors, (72), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:24:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 139 transitions. [2025-03-17 15:24:47,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-17 15:24:47,383 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:47,383 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, 1] [2025-03-17 15:24:47,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:47,583 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,SelfDestructingSolverStorable12 [2025-03-17 15:24:47,584 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:47,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:47,584 INFO L85 PathProgramCache]: Analyzing trace with hash -2009895289, now seen corresponding path program 1 times [2025-03-17 15:24:47,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:47,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893182430] [2025-03-17 15:24:47,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:47,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:47,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 15:24:47,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 15:24:47,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:47,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:47,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849128914] [2025-03-17 15:24:47,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:47,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:47,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:47,597 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:47,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 15:24:47,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 15:24:47,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 15:24:47,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:47,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:47,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:24:47,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:47,708 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:24:47,708 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:47,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:47,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893182430] [2025-03-17 15:24:47,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:47,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849128914] [2025-03-17 15:24:47,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849128914] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:47,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:47,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:24:47,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532325579] [2025-03-17 15:24:47,797 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:47,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:24:47,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:47,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:24:47,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:24:47,798 INFO L87 Difference]: Start difference. First operand 121 states and 139 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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) [2025-03-17 15:24:47,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:47,926 INFO L93 Difference]: Finished difference Result 137 states and 150 transitions. [2025-03-17 15:24:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:24:47,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 46 [2025-03-17 15:24:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:47,927 INFO L225 Difference]: With dead ends: 137 [2025-03-17 15:24:47,927 INFO L226 Difference]: Without dead ends: 123 [2025-03-17 15:24:47,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:24:47,930 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 20 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:47,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 94 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:24:47,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2025-03-17 15:24:47,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2025-03-17 15:24:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.203883495145631) internal successors, (124), 112 states have internal predecessors, (124), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:24:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2025-03-17 15:24:47,935 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 46 [2025-03-17 15:24:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:47,935 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2025-03-17 15:24:47,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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) [2025-03-17 15:24:47,935 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2025-03-17 15:24:47,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-17 15:24:47,936 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:47,936 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:47,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:48,136 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,SelfDestructingSolverStorable13 [2025-03-17 15:24:48,136 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:48,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:48,137 INFO L85 PathProgramCache]: Analyzing trace with hash -329491188, now seen corresponding path program 1 times [2025-03-17 15:24:48,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:48,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045126451] [2025-03-17 15:24:48,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:48,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:48,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 15:24:48,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 15:24:48,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:48,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:24:48,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:48,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045126451] [2025-03-17 15:24:48,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045126451] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:48,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961908581] [2025-03-17 15:24:48,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:48,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:48,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:48,215 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:48,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 15:24:48,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 15:24:48,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 15:24:48,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:48,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:48,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:24:48,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:48,271 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:24:48,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:24:48,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961908581] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:24:48,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:48,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-17 15:24:48,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931188388] [2025-03-17 15:24:48,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:48,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:24:48,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:48,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:24:48,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:24:48,272 INFO L87 Difference]: Start difference. First operand 121 states and 136 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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) [2025-03-17 15:24:48,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:48,284 INFO L93 Difference]: Finished difference Result 121 states and 136 transitions. [2025-03-17 15:24:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:24:48,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 54 [2025-03-17 15:24:48,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:48,285 INFO L225 Difference]: With dead ends: 121 [2025-03-17 15:24:48,285 INFO L226 Difference]: Without dead ends: 120 [2025-03-17 15:24:48,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:24:48,285 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 13 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:48,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 94 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:24:48,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-03-17 15:24:48,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-03-17 15:24:48,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 103 states have (on average 1.174757281553398) internal successors, (121), 111 states have internal predecessors, (121), 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) [2025-03-17 15:24:48,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2025-03-17 15:24:48,289 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 54 [2025-03-17 15:24:48,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:48,289 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2025-03-17 15:24:48,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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) [2025-03-17 15:24:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2025-03-17 15:24:48,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-17 15:24:48,290 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:48,290 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:48,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:48,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:48,490 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:48,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:48,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1624292232, now seen corresponding path program 1 times [2025-03-17 15:24:48,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:48,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599528159] [2025-03-17 15:24:48,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:48,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:48,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-17 15:24:48,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-17 15:24:48,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:48,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:48,558 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:24:48,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:48,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599528159] [2025-03-17 15:24:48,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599528159] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:48,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950678963] [2025-03-17 15:24:48,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:48,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:48,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:48,561 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:48,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 15:24:48,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-17 15:24:48,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-17 15:24:48,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:48,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:48,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:24:48,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:48,624 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:24:48,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:24:48,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950678963] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:24:48,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:24:48,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-17 15:24:48,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589618179] [2025-03-17 15:24:48,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:48,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:24:48,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:48,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:24:48,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:24:48,693 INFO L87 Difference]: Start difference. First operand 120 states and 133 transitions. Second operand has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 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) [2025-03-17 15:24:48,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:48,717 INFO L93 Difference]: Finished difference Result 135 states and 144 transitions. [2025-03-17 15:24:48,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:24:48,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 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 55 [2025-03-17 15:24:48,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:48,718 INFO L225 Difference]: With dead ends: 135 [2025-03-17 15:24:48,718 INFO L226 Difference]: Without dead ends: 134 [2025-03-17 15:24:48,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:24:48,719 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 14 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:48,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 217 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:24:48,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2025-03-17 15:24:48,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 126. [2025-03-17 15:24:48,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 108 states have (on average 1.1759259259259258) internal successors, (127), 116 states have internal predecessors, (127), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:24:48,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 141 transitions. [2025-03-17 15:24:48,724 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 141 transitions. Word has length 55 [2025-03-17 15:24:48,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:48,724 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 141 transitions. [2025-03-17 15:24:48,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 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) [2025-03-17 15:24:48,724 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 141 transitions. [2025-03-17 15:24:48,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-17 15:24:48,725 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:48,725 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:48,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:48,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-17 15:24:48,929 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:48,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:48,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2044510800, now seen corresponding path program 2 times [2025-03-17 15:24:48,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:48,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220238068] [2025-03-17 15:24:48,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:24:48,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:48,933 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-03-17 15:24:48,940 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 15:24:48,940 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:24:48,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:48,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033819543] [2025-03-17 15:24:48,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:24:48,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:48,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:48,943 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:48,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-17 15:24:48,965 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-03-17 15:24:48,979 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 15:24:48,979 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:24:48,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:48,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:24:48,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 15:24:49,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:49,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:49,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220238068] [2025-03-17 15:24:49,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:49,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033819543] [2025-03-17 15:24:49,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033819543] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:49,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:49,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:24:49,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090368751] [2025-03-17 15:24:49,367 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:49,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:24:49,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:49,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:24:49,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:24:49,368 INFO L87 Difference]: Start difference. First operand 126 states and 141 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 15:24:49,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:49,583 INFO L93 Difference]: Finished difference Result 138 states and 152 transitions. [2025-03-17 15:24:49,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:24:49,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 63 [2025-03-17 15:24:49,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:49,584 INFO L225 Difference]: With dead ends: 138 [2025-03-17 15:24:49,584 INFO L226 Difference]: Without dead ends: 136 [2025-03-17 15:24:49,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:24:49,584 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 56 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:49,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 113 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:24:49,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2025-03-17 15:24:49,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 126. [2025-03-17 15:24:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 108 states have (on average 1.1574074074074074) internal successors, (125), 116 states have internal predecessors, (125), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:24:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 139 transitions. [2025-03-17 15:24:49,589 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 139 transitions. Word has length 63 [2025-03-17 15:24:49,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:49,589 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 139 transitions. [2025-03-17 15:24:49,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 15:24:49,590 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 139 transitions. [2025-03-17 15:24:49,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 15:24:49,590 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:49,590 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:49,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:49,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-17 15:24:49,791 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:49,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1676613027, now seen corresponding path program 2 times [2025-03-17 15:24:49,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:49,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380009502] [2025-03-17 15:24:49,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:24:49,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:49,794 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-03-17 15:24:49,801 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 15:24:49,801 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:24:49,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:49,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500466833] [2025-03-17 15:24:49,804 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:24:49,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:49,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:49,805 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:24:49,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-17 15:24:49,824 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-03-17 15:24:49,835 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 15:24:49,835 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:24:49,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:49,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 15:24:49,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:50,014 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 15:24:50,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:50,194 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:24:50,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:50,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380009502] [2025-03-17 15:24:50,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:50,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500466833] [2025-03-17 15:24:50,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500466833] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:50,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:50,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2025-03-17 15:24:50,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247501217] [2025-03-17 15:24:50,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:50,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:24:50,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:50,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:24:50,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:24:50,195 INFO L87 Difference]: Start difference. First operand 126 states and 139 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:24:52,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:52,079 INFO L93 Difference]: Finished difference Result 126 states and 139 transitions. [2025-03-17 15:24:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:24:52,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 70 [2025-03-17 15:24:52,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:52,080 INFO L225 Difference]: With dead ends: 126 [2025-03-17 15:24:52,080 INFO L226 Difference]: Without dead ends: 124 [2025-03-17 15:24:52,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:24:52,081 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 42 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:52,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 71 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-17 15:24:52,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2025-03-17 15:24:52,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2025-03-17 15:24:52,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 108 states have (on average 1.1203703703703705) internal successors, (121), 114 states have internal predecessors, (121), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:24:52,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 135 transitions. [2025-03-17 15:24:52,085 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 135 transitions. Word has length 70 [2025-03-17 15:24:52,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:52,086 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 135 transitions. [2025-03-17 15:24:52,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:24:52,086 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 135 transitions. [2025-03-17 15:24:52,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-17 15:24:52,086 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:52,086 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:52,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-17 15:24:52,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 15:24:52,287 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:52,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:52,287 INFO L85 PathProgramCache]: Analyzing trace with hash 435396296, now seen corresponding path program 1 times [2025-03-17 15:24:52,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:52,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111615893] [2025-03-17 15:24:52,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:52,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:52,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-17 15:24:52,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 15:24:52,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:52,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:52,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [704544933] [2025-03-17 15:24:52,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:24:52,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:52,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:52,301 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) [2025-03-17 15:24:52,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-17 15:24:52,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-17 15:24:52,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 15:24:52,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:24:52,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:52,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-17 15:24:52,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 15:24:52,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:24:52,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:52,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111615893] [2025-03-17 15:24:52,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:52,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704544933] [2025-03-17 15:24:52,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704544933] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:24:52,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:24:52,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2025-03-17 15:24:52,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895320580] [2025-03-17 15:24:52,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:24:52,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:24:52,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:52,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:24:52,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:24:52,644 INFO L87 Difference]: Start difference. First operand 124 states and 135 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:24:52,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:24:52,879 INFO L93 Difference]: Finished difference Result 124 states and 135 transitions. [2025-03-17 15:24:52,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:24:52,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 71 [2025-03-17 15:24:52,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:24:52,880 INFO L225 Difference]: With dead ends: 124 [2025-03-17 15:24:52,880 INFO L226 Difference]: Without dead ends: 112 [2025-03-17 15:24:52,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:24:52,880 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 62 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:24:52,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 86 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:24:52,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2025-03-17 15:24:52,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2025-03-17 15:24:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 98 states have (on average 1.0714285714285714) internal successors, (105), 102 states have internal predecessors, (105), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:24:52,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 119 transitions. [2025-03-17 15:24:52,886 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 119 transitions. Word has length 71 [2025-03-17 15:24:52,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:24:52,886 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 119 transitions. [2025-03-17 15:24:52,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:24:52,886 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 119 transitions. [2025-03-17 15:24:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-17 15:24:52,886 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:24:52,887 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:24:52,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-17 15:24:53,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:53,087 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:24:53,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:24:53,088 INFO L85 PathProgramCache]: Analyzing trace with hash -705120588, now seen corresponding path program 3 times [2025-03-17 15:24:53,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:24:53,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798741806] [2025-03-17 15:24:53,088 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:24:53,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:24:53,092 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 87 statements into 4 equivalence classes. [2025-03-17 15:24:53,103 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 15:24:53,103 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-17 15:24:53,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:24:53,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735472350] [2025-03-17 15:24:53,104 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:24:53,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:24:53,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:24:53,107 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) [2025-03-17 15:24:53,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-17 15:24:53,130 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 87 statements into 4 equivalence classes. [2025-03-17 15:24:53,265 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 15:24:53,266 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-17 15:24:53,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:24:53,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-17 15:24:53,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:24:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 15:24:53,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:24:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 15:24:54,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:24:54,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798741806] [2025-03-17 15:24:54,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:24:54,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735472350] [2025-03-17 15:24:54,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735472350] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:24:54,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:24:54,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2025-03-17 15:24:54,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186139592] [2025-03-17 15:24:54,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:24:54,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 15:24:54,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:24:54,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 15:24:54,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2025-03-17 15:24:54,947 INFO L87 Difference]: Start difference. First operand 112 states and 119 transitions. Second operand has 24 states, 23 states have (on average 6.043478260869565) internal successors, (139), 24 states have internal predecessors, (139), 9 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-17 15:24:59,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2025-03-17 15:25:04,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:25:06,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:25:06,256 INFO L93 Difference]: Finished difference Result 166 states and 182 transitions. [2025-03-17 15:25:06,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-17 15:25:06,257 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.043478260869565) internal successors, (139), 24 states have internal predecessors, (139), 9 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 87 [2025-03-17 15:25:06,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:25:06,257 INFO L225 Difference]: With dead ends: 166 [2025-03-17 15:25:06,257 INFO L226 Difference]: Without dead ends: 164 [2025-03-17 15:25:06,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2025-03-17 15:25:06,258 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 277 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2025-03-17 15:25:06,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 290 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 960 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2025-03-17 15:25:06,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2025-03-17 15:25:06,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2025-03-17 15:25:06,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 144 states have (on average 1.0833333333333333) internal successors, (156), 148 states have internal predecessors, (156), 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) [2025-03-17 15:25:06,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 174 transitions. [2025-03-17 15:25:06,265 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 174 transitions. Word has length 87 [2025-03-17 15:25:06,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:25:06,265 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 174 transitions. [2025-03-17 15:25:06,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.043478260869565) internal successors, (139), 24 states have internal predecessors, (139), 9 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-17 15:25:06,265 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 174 transitions. [2025-03-17 15:25:06,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-03-17 15:25:06,266 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:25:06,266 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:25:06,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-17 15:25:06,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:25:06,466 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:25:06,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:25:06,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1372072607, now seen corresponding path program 2 times [2025-03-17 15:25:06,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:25:06,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844607520] [2025-03-17 15:25:06,467 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:25:06,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:25:06,471 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 114 statements into 2 equivalence classes. [2025-03-17 15:25:06,480 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-03-17 15:25:06,481 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:25:06,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:25:06,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [360258515] [2025-03-17 15:25:06,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:25:06,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:25:06,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:25:06,488 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) [2025-03-17 15:25:06,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-17 15:25:06,510 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 114 statements into 2 equivalence classes. [2025-03-17 15:25:06,528 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-03-17 15:25:06,528 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:25:06,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:25:06,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:25:06,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:25:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 67 proven. 4 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2025-03-17 15:25:06,827 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:25:06,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:25:06,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844607520] [2025-03-17 15:25:06,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:25:06,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360258515] [2025-03-17 15:25:06,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360258515] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:25:06,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:25:06,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:25:06,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815875284] [2025-03-17 15:25:06,971 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:25:06,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:25:06,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:25:06,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:25:06,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:25:06,971 INFO L87 Difference]: Start difference. First operand 160 states and 174 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 15:25:07,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:25:07,072 INFO L93 Difference]: Finished difference Result 160 states and 174 transitions. [2025-03-17 15:25:07,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:25:07,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 114 [2025-03-17 15:25:07,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:25:07,073 INFO L225 Difference]: With dead ends: 160 [2025-03-17 15:25:07,073 INFO L226 Difference]: Without dead ends: 159 [2025-03-17 15:25:07,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:25:07,074 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 31 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:25:07,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 51 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:25:07,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2025-03-17 15:25:07,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2025-03-17 15:25:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 144 states have (on average 1.0625) internal successors, (153), 147 states have internal predecessors, (153), 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) [2025-03-17 15:25:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 171 transitions. [2025-03-17 15:25:07,082 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 171 transitions. Word has length 114 [2025-03-17 15:25:07,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:25:07,083 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 171 transitions. [2025-03-17 15:25:07,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 15:25:07,083 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 171 transitions. [2025-03-17 15:25:07,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-17 15:25:07,085 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:25:07,085 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:25:07,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-17 15:25:07,285 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,SelfDestructingSolverStorable20 [2025-03-17 15:25:07,287 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:25:07,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:25:07,287 INFO L85 PathProgramCache]: Analyzing trace with hash 211297906, now seen corresponding path program 2 times [2025-03-17 15:25:07,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:25:07,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179643719] [2025-03-17 15:25:07,287 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:25:07,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:25:07,290 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-03-17 15:25:07,301 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 117 of 117 statements. [2025-03-17 15:25:07,301 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:25:07,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:25:07,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089945150] [2025-03-17 15:25:07,302 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:25:07,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:25:07,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:25:07,304 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) [2025-03-17 15:25:07,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-17 15:25:07,324 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes. [2025-03-17 15:25:07,392 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 117 of 117 statements. [2025-03-17 15:25:07,392 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:25:07,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:25:07,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-17 15:25:07,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:25:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 9 proven. 152 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-17 15:25:07,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:25:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:25:08,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:25:08,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179643719] [2025-03-17 15:25:08,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:25:08,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089945150] [2025-03-17 15:25:08,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089945150] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:25:08,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:25:08,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2025-03-17 15:25:08,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944403014] [2025-03-17 15:25:08,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:25:08,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:25:08,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:25:08,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:25:08,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:25:08,487 INFO L87 Difference]: Start difference. First operand 159 states and 171 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:25:08,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:25:08,978 INFO L93 Difference]: Finished difference Result 159 states and 171 transitions. [2025-03-17 15:25:08,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:25:08,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 117 [2025-03-17 15:25:08,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:25:08,981 INFO L225 Difference]: With dead ends: 159 [2025-03-17 15:25:08,981 INFO L226 Difference]: Without dead ends: 158 [2025-03-17 15:25:08,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2025-03-17 15:25:08,982 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 40 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:25:08,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 68 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:25:08,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2025-03-17 15:25:08,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2025-03-17 15:25:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 144 states have (on average 1.0416666666666667) internal successors, (150), 146 states have internal predecessors, (150), 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) [2025-03-17 15:25:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2025-03-17 15:25:08,993 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 117 [2025-03-17 15:25:08,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:25:08,993 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2025-03-17 15:25:08,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:25:08,994 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2025-03-17 15:25:08,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-17 15:25:08,994 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:25:08,994 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, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:25:08,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-17 15:25:09,197 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,SelfDestructingSolverStorable21 [2025-03-17 15:25:09,197 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:25:09,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:25:09,197 INFO L85 PathProgramCache]: Analyzing trace with hash 325011876, now seen corresponding path program 2 times [2025-03-17 15:25:09,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:25:09,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636094275] [2025-03-17 15:25:09,197 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:25:09,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:25:09,201 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 127 statements into 2 equivalence classes. [2025-03-17 15:25:09,204 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 15:25:09,204 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:25:09,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:25:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-17 15:25:09,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:25:09,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636094275] [2025-03-17 15:25:09,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636094275] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:25:09,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406367806] [2025-03-17 15:25:09,277 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:25:09,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:25:09,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:25:09,279 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) [2025-03-17 15:25:09,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-17 15:25:09,300 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 127 statements into 2 equivalence classes. [2025-03-17 15:25:09,317 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 15:25:09,317 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:25:09,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:25:09,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:25:09,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:25:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-17 15:25:09,399 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:25:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-17 15:25:09,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406367806] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:25:09,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:25:09,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-17 15:25:09,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562903092] [2025-03-17 15:25:09,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:25:09,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:25:09,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:25:09,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:25:09,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:25:09,496 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-17 15:25:09,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:25:09,531 INFO L93 Difference]: Finished difference Result 158 states and 168 transitions. [2025-03-17 15:25:09,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:25:09,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 127 [2025-03-17 15:25:09,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:25:09,532 INFO L225 Difference]: With dead ends: 158 [2025-03-17 15:25:09,532 INFO L226 Difference]: Without dead ends: 157 [2025-03-17 15:25:09,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:25:09,532 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 32 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:25:09,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 85 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:25:09,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-03-17 15:25:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2025-03-17 15:25:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 144 states have (on average 1.0208333333333333) internal successors, (147), 145 states have internal predecessors, (147), 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) [2025-03-17 15:25:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 165 transitions. [2025-03-17 15:25:09,540 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 165 transitions. Word has length 127 [2025-03-17 15:25:09,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:25:09,540 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 165 transitions. [2025-03-17 15:25:09,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-17 15:25:09,541 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 165 transitions. [2025-03-17 15:25:09,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-03-17 15:25:09,541 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:25:09,542 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:25:09,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-03-17 15:25:09,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:25:09,746 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:25:09,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:25:09,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2092035994, now seen corresponding path program 1 times [2025-03-17 15:25:09,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:25:09,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052055322] [2025-03-17 15:25:09,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:25:09,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:25:09,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-17 15:25:09,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-17 15:25:09,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:25:09,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:25:09,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438507278] [2025-03-17 15:25:09,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:25:09,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:25:09,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:25:09,759 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) [2025-03-17 15:25:09,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-17 15:25:09,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-17 15:25:09,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-17 15:25:09,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:25:09,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:25:09,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-17 15:25:09,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:25:10,758 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 223 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-17 15:25:10,758 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:25:10,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:25:10,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052055322] [2025-03-17 15:25:10,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:25:10,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438507278] [2025-03-17 15:25:10,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438507278] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:25:10,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:25:10,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-03-17 15:25:10,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257478797] [2025-03-17 15:25:10,865 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:25:10,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:25:10,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:25:10,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:25:10,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:25:10,866 INFO L87 Difference]: Start difference. First operand 157 states and 165 transitions. Second operand has 11 states, 10 states have (on average 11.1) internal successors, (111), 11 states have internal predecessors, (111), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:25:15,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:19,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:19,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:25:19,258 INFO L93 Difference]: Finished difference Result 158 states and 165 transitions. [2025-03-17 15:25:19,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 15:25:19,259 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.1) internal successors, (111), 11 states have internal predecessors, (111), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) Word has length 137 [2025-03-17 15:25:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:25:19,260 INFO L225 Difference]: With dead ends: 158 [2025-03-17 15:25:19,260 INFO L226 Difference]: Without dead ends: 157 [2025-03-17 15:25:19,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:25:19,260 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 33 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:25:19,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 91 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2025-03-17 15:25:19,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-03-17 15:25:19,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2025-03-17 15:25:19,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 144 states have (on average 1.0138888888888888) internal successors, (146), 145 states have internal predecessors, (146), 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) [2025-03-17 15:25:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 164 transitions. [2025-03-17 15:25:19,269 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 164 transitions. Word has length 137 [2025-03-17 15:25:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:25:19,269 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 164 transitions. [2025-03-17 15:25:19,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.1) internal successors, (111), 11 states have internal predecessors, (111), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:25:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 164 transitions. [2025-03-17 15:25:19,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-03-17 15:25:19,270 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:25:19,270 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 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] [2025-03-17 15:25:19,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-17 15:25:19,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:25:19,473 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:25:19,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:25:19,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1948936450, now seen corresponding path program 2 times [2025-03-17 15:25:19,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:25:19,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363961298] [2025-03-17 15:25:19,473 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:25:19,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:25:19,478 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 161 statements into 2 equivalence classes. [2025-03-17 15:25:19,487 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 161 of 161 statements. [2025-03-17 15:25:19,487 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:25:19,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:25:19,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [336288686] [2025-03-17 15:25:19,488 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:25:19,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:25:19,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:25:19,489 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) [2025-03-17 15:25:19,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-17 15:25:19,510 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 161 statements into 2 equivalence classes. [2025-03-17 15:25:19,534 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 161 of 161 statements. [2025-03-17 15:25:19,534 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:25:19,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:25:19,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 15:25:19,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:25:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 307 refuted. 20 times theorem prover too weak. 61 trivial. 0 not checked. [2025-03-17 15:25:25,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:25:25,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:25:25,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363961298] [2025-03-17 15:25:25,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:25:25,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336288686] [2025-03-17 15:25:25,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336288686] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:25:25,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:25:25,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-17 15:25:25,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316576065] [2025-03-17 15:25:25,452 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:25:25,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:25:25,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:25:25,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:25:25,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=113, Unknown=1, NotChecked=0, Total=182 [2025-03-17 15:25:25,453 INFO L87 Difference]: Start difference. First operand 157 states and 164 transitions. Second operand has 12 states, 11 states have (on average 11.818181818181818) internal successors, (130), 12 states have internal predecessors, (130), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:25:29,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:33,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:38,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:39,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:44,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:46,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:50,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:54,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:25:55,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:25:55,452 INFO L93 Difference]: Finished difference Result 174 states and 182 transitions. [2025-03-17 15:25:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:25:55,452 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.818181818181818) internal successors, (130), 12 states have internal predecessors, (130), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 161 [2025-03-17 15:25:55,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:25:55,453 INFO L225 Difference]: With dead ends: 174 [2025-03-17 15:25:55,453 INFO L226 Difference]: Without dead ends: 173 [2025-03-17 15:25:55,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=68, Invalid=113, Unknown=1, NotChecked=0, Total=182 [2025-03-17 15:25:55,454 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 33 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:25:55,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 100 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 7 Unknown, 0 Unchecked, 30.0s Time] [2025-03-17 15:25:55,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-03-17 15:25:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 159. [2025-03-17 15:25:55,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 146 states have (on average 1.0136986301369864) internal successors, (148), 147 states have internal predecessors, (148), 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) [2025-03-17 15:25:55,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 166 transitions. [2025-03-17 15:25:55,463 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 166 transitions. Word has length 161 [2025-03-17 15:25:55,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:25:55,464 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 166 transitions. [2025-03-17 15:25:55,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.818181818181818) internal successors, (130), 12 states have internal predecessors, (130), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:25:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 166 transitions. [2025-03-17 15:25:55,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-03-17 15:25:55,465 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:25:55,465 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:25:55,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-17 15:25:55,665 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,SelfDestructingSolverStorable24 [2025-03-17 15:25:55,665 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 15:25:55,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:25:55,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2066042948, now seen corresponding path program 4 times [2025-03-17 15:25:55,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:25:55,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753544849] [2025-03-17 15:25:55,666 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:25:55,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:25:55,673 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 183 statements into 2 equivalence classes. [2025-03-17 15:25:55,684 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 183 of 183 statements. [2025-03-17 15:25:55,684 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:25:55,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:25:55,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104331399] [2025-03-17 15:25:55,685 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:25:55,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:25:55,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:25:55,687 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) [2025-03-17 15:25:55,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-17 15:25:55,710 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 183 statements into 2 equivalence classes. [2025-03-17 15:25:55,925 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 183 of 183 statements. [2025-03-17 15:25:55,926 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:25:55,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:25:55,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-03-17 15:25:55,933 INFO L279 TraceCheckSpWp]: Computing forward predicates...