./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 11:14:57,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 11:14:57,736 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 11:14:57,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 11:14:57,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 11:14:57,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 11:14:57,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 11:14:57,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 11:14:57,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 11:14:57,767 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 11:14:57,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 11:14:57,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 11:14:57,768 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 11:14:57,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 11:14:57,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 11:14:57,769 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 11:14:57,770 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:14:57,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 11:14:57,770 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2025-03-04 11:14:57,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 11:14:58,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 11:14:58,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 11:14:58,006 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 11:14:58,006 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 11:14:58,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c [2025-03-04 11:14:59,114 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fff1bb208/52e8354567014f74be54aeb97d51bda3/FLAG6ee6e9688 [2025-03-04 11:14:59,318 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 11:14:59,319 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c [2025-03-04 11:14:59,327 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fff1bb208/52e8354567014f74be54aeb97d51bda3/FLAG6ee6e9688 [2025-03-04 11:14:59,672 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fff1bb208/52e8354567014f74be54aeb97d51bda3 [2025-03-04 11:14:59,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 11:14:59,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 11:14:59,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 11:14:59,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 11:14:59,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 11:14:59,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c29319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59, skipping insertion in model container [2025-03-04 11:14:59,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 11:14:59,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:14:59,806 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 11:14:59,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:14:59,833 INFO L204 MainTranslator]: Completed translation [2025-03-04 11:14:59,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59 WrapperNode [2025-03-04 11:14:59,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 11:14:59,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 11:14:59,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 11:14:59,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 11:14:59,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,857 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2025-03-04 11:14:59,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 11:14:59,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 11:14:59,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 11:14:59,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 11:14:59,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,881 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 11:14:59,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,884 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 11:14:59,892 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 11:14:59,893 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 11:14:59,893 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 11:14:59,894 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (1/1) ... [2025-03-04 11:14:59,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:14:59,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:59,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 11:14:59,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 11:14:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 11:14:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 11:14:59,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 11:14:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 11:14:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 11:14:59,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 11:14:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 11:14:59,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 11:14:59,991 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 11:14:59,992 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 11:15:00,133 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2025-03-04 11:15:00,136 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 11:15:00,145 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 11:15:00,145 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 11:15:00,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:15:00 BoogieIcfgContainer [2025-03-04 11:15:00,145 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 11:15:00,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 11:15:00,147 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 11:15:00,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 11:15:00,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 11:14:59" (1/3) ... [2025-03-04 11:15:00,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190ba0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:15:00, skipping insertion in model container [2025-03-04 11:15:00,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:59" (2/3) ... [2025-03-04 11:15:00,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190ba0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:15:00, skipping insertion in model container [2025-03-04 11:15:00,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:15:00" (3/3) ... [2025-03-04 11:15:00,156 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound5.c [2025-03-04 11:15:00,169 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 11:15:00,172 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_valuebound5.c that has 3 procedures, 63 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2025-03-04 11:15:00,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 11:15:00,221 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;@60576198, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 11:15:00,222 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-03-04 11:15:00,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 56 states have internal predecessors, (61), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:15:00,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-04 11:15:00,228 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:00,228 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:00,229 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:00,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:00,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1572191034, now seen corresponding path program 1 times [2025-03-04 11:15:00,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:00,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146907139] [2025-03-04 11:15:00,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:00,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:00,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:15:00,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:15:00,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:00,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 11:15:00,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:00,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146907139] [2025-03-04 11:15:00,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146907139] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:00,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746547000] [2025-03-04 11:15:00,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:00,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:00,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:00,341 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:00,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 11:15:00,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:15:00,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:15:00,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:00,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:00,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 11:15:00,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 11:15:00,408 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:15:00,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746547000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:15:00,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:00,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 11:15:00,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444298259] [2025-03-04 11:15:00,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:15:00,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 11:15:00,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:00,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 11:15:00,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:15:00,433 INFO L87 Difference]: Start difference. First operand has 63 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 56 states have internal predecessors, (61), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:15:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:00,449 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2025-03-04 11:15:00,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 11:15:00,452 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2025-03-04 11:15:00,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:00,457 INFO L225 Difference]: With dead ends: 122 [2025-03-04 11:15:00,457 INFO L226 Difference]: Without dead ends: 56 [2025-03-04 11:15:00,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:15:00,465 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:00,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:15:00,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-03-04 11:15:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-03-04 11:15:00,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 50 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:15:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2025-03-04 11:15:00,499 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 14 [2025-03-04 11:15:00,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:00,499 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2025-03-04 11:15:00,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:15:00,500 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2025-03-04 11:15:00,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-04 11:15:00,501 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:00,501 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:00,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 11:15:00,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 11:15:00,706 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:00,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:00,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1376601050, now seen corresponding path program 1 times [2025-03-04 11:15:00,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:00,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72226352] [2025-03-04 11:15:00,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:00,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:00,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:15:00,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:15:00,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:00,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:00,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235952242] [2025-03-04 11:15:00,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:00,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:00,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:00,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:00,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 11:15:00,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:15:00,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:15:00,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:00,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:00,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:15:00,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:00,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:00,785 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:15:00,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:00,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72226352] [2025-03-04 11:15:00,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:00,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235952242] [2025-03-04 11:15:00,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235952242] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:15:00,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:15:00,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:15:00,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47549488] [2025-03-04 11:15:00,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:15:00,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:15:00,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:00,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:15:00,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:15:00,787 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:00,850 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2025-03-04 11:15:00,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:15:00,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-03-04 11:15:00,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:00,852 INFO L225 Difference]: With dead ends: 89 [2025-03-04 11:15:00,852 INFO L226 Difference]: Without dead ends: 83 [2025-03-04 11:15:00,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:15:00,852 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:00,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 74 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:00,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-04 11:15:00,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2025-03-04 11:15:00,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 68 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:15:00,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2025-03-04 11:15:00,862 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 14 [2025-03-04 11:15:00,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:00,862 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2025-03-04 11:15:00,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:00,862 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2025-03-04 11:15:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-04 11:15:00,863 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:00,863 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:00,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 11:15:01,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 11:15:01,063 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:01,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:01,064 INFO L85 PathProgramCache]: Analyzing trace with hash 63682360, now seen corresponding path program 1 times [2025-03-04 11:15:01,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:01,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355721611] [2025-03-04 11:15:01,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:01,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:01,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 11:15:01,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 11:15:01,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:01,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:01,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:01,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355721611] [2025-03-04 11:15:01,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355721611] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:15:01,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:15:01,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:15:01,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865299590] [2025-03-04 11:15:01,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:15:01,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:15:01,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:01,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:15:01,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:15:01,161 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:01,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:01,236 INFO L93 Difference]: Finished difference Result 117 states and 149 transitions. [2025-03-04 11:15:01,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:15:01,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2025-03-04 11:15:01,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:01,238 INFO L225 Difference]: With dead ends: 117 [2025-03-04 11:15:01,238 INFO L226 Difference]: Without dead ends: 110 [2025-03-04 11:15:01,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:15:01,239 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 33 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:01,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 71 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:01,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-03-04 11:15:01,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2025-03-04 11:15:01,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.5897435897435896) internal successors, (124), 97 states have internal predecessors, (124), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:15:01,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 136 transitions. [2025-03-04 11:15:01,247 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 136 transitions. Word has length 16 [2025-03-04 11:15:01,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:01,247 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 136 transitions. [2025-03-04 11:15:01,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:01,247 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 136 transitions. [2025-03-04 11:15:01,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-04 11:15:01,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:01,249 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:01,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 11:15:01,249 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:01,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:01,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1974153171, now seen corresponding path program 1 times [2025-03-04 11:15:01,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:01,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752068546] [2025-03-04 11:15:01,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:01,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:01,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 11:15:01,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 11:15:01,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:01,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:01,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:01,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:01,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752068546] [2025-03-04 11:15:01,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752068546] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:15:01,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:15:01,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:15:01,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708283202] [2025-03-04 11:15:01,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:15:01,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:15:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:01,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:15:01,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:15:01,326 INFO L87 Difference]: Start difference. First operand 106 states and 136 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:01,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:01,391 INFO L93 Difference]: Finished difference Result 112 states and 137 transitions. [2025-03-04 11:15:01,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:15:01,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2025-03-04 11:15:01,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:01,392 INFO L225 Difference]: With dead ends: 112 [2025-03-04 11:15:01,392 INFO L226 Difference]: Without dead ends: 103 [2025-03-04 11:15:01,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:15:01,393 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 31 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:01,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:01,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-04 11:15:01,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2025-03-04 11:15:01,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5616438356164384) internal successors, (114), 92 states have internal predecessors, (114), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:15:01,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2025-03-04 11:15:01,399 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 17 [2025-03-04 11:15:01,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:01,400 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2025-03-04 11:15:01,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:01,400 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2025-03-04 11:15:01,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 11:15:01,400 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:01,400 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:01,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 11:15:01,400 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:01,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:01,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1069206166, now seen corresponding path program 1 times [2025-03-04 11:15:01,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:01,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479003111] [2025-03-04 11:15:01,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:01,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:01,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 11:15:01,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 11:15:01,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:01,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:15:01,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:01,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479003111] [2025-03-04 11:15:01,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479003111] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:01,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554537007] [2025-03-04 11:15:01,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:01,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:01,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:01,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:01,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 11:15:01,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 11:15:01,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 11:15:01,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:01,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:01,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:15:01,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:01,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:01,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:15:01,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554537007] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:15:01,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:01,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-04 11:15:01,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402549570] [2025-03-04 11:15:01,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:15:01,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:15:01,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:01,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:15:01,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:01,665 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:01,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:01,761 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2025-03-04 11:15:01,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:15:01,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2025-03-04 11:15:01,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:01,763 INFO L225 Difference]: With dead ends: 104 [2025-03-04 11:15:01,763 INFO L226 Difference]: Without dead ends: 103 [2025-03-04 11:15:01,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:15:01,764 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 70 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:01,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 62 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-04 11:15:01,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2025-03-04 11:15:01,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.547945205479452) internal successors, (113), 92 states have internal predecessors, (113), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:15:01,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2025-03-04 11:15:01,770 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 18 [2025-03-04 11:15:01,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:01,770 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2025-03-04 11:15:01,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:01,771 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2025-03-04 11:15:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-04 11:15:01,771 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:01,771 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:01,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:01,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:01,975 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:01,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:01,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1214347215, now seen corresponding path program 1 times [2025-03-04 11:15:01,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:01,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756146800] [2025-03-04 11:15:01,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:01,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:01,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 11:15:01,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 11:15:01,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:01,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:01,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [121031722] [2025-03-04 11:15:01,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:01,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:01,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:01,986 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:01,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 11:15:02,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 11:15:02,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 11:15:02,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:02,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:02,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:15:02,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:02,070 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:15:02,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:02,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756146800] [2025-03-04 11:15:02,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:02,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121031722] [2025-03-04 11:15:02,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121031722] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:15:02,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:15:02,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:15:02,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083282169] [2025-03-04 11:15:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:15:02,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:15:02,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:02,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:15:02,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:15:02,072 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:02,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:02,167 INFO L93 Difference]: Finished difference Result 102 states and 125 transitions. [2025-03-04 11:15:02,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:15:02,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-03-04 11:15:02,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:02,168 INFO L225 Difference]: With dead ends: 102 [2025-03-04 11:15:02,168 INFO L226 Difference]: Without dead ends: 101 [2025-03-04 11:15:02,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:15:02,169 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:02,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 67 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:02,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-03-04 11:15:02,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2025-03-04 11:15:02,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5342465753424657) internal successors, (112), 92 states have internal predecessors, (112), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:15:02,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2025-03-04 11:15:02,174 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 19 [2025-03-04 11:15:02,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:02,175 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2025-03-04 11:15:02,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:15:02,175 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2025-03-04 11:15:02,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 11:15:02,175 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:02,175 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:02,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:02,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:02,376 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:02,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:02,376 INFO L85 PathProgramCache]: Analyzing trace with hash 166554239, now seen corresponding path program 1 times [2025-03-04 11:15:02,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:02,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366549625] [2025-03-04 11:15:02,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:02,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:02,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 11:15:02,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 11:15:02,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:02,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:02,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:15:02,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:02,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366549625] [2025-03-04 11:15:02,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366549625] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:02,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863627796] [2025-03-04 11:15:02,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:02,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:02,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:02,473 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:02,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 11:15:02,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 11:15:02,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 11:15:02,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:02,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:02,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:15:02,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:15:02,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:02,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:15:02,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863627796] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:02,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:02,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-03-04 11:15:02,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672438603] [2025-03-04 11:15:02,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:02,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:15:02,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:02,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:15:02,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:02,616 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:15:02,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:02,699 INFO L93 Difference]: Finished difference Result 152 states and 189 transitions. [2025-03-04 11:15:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:15:02,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2025-03-04 11:15:02,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:02,700 INFO L225 Difference]: With dead ends: 152 [2025-03-04 11:15:02,701 INFO L226 Difference]: Without dead ends: 150 [2025-03-04 11:15:02,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:02,702 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:02,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 236 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2025-03-04 11:15:02,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 140. [2025-03-04 11:15:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 110 states have (on average 1.5272727272727273) internal successors, (168), 129 states have internal predecessors, (168), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:15:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2025-03-04 11:15:02,720 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 31 [2025-03-04 11:15:02,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:02,721 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2025-03-04 11:15:02,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:15:02,721 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2025-03-04 11:15:02,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 11:15:02,721 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:02,721 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:02,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:02,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:02,922 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:02,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:02,923 INFO L85 PathProgramCache]: Analyzing trace with hash 868214095, now seen corresponding path program 1 times [2025-03-04 11:15:02,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:02,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404818783] [2025-03-04 11:15:02,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:02,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:02,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 11:15:02,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 11:15:02,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:02,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:02,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:02,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404818783] [2025-03-04 11:15:02,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404818783] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:15:02,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:15:02,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:15:02,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877938367] [2025-03-04 11:15:02,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:15:02,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:15:02,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:02,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:15:02,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:15:02,971 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:15:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:02,996 INFO L93 Difference]: Finished difference Result 140 states and 184 transitions. [2025-03-04 11:15:02,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:15:02,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2025-03-04 11:15:02,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:02,997 INFO L225 Difference]: With dead ends: 140 [2025-03-04 11:15:02,997 INFO L226 Difference]: Without dead ends: 138 [2025-03-04 11:15:02,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:15:02,998 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 56 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:02,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 72 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:15:02,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-03-04 11:15:03,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2025-03-04 11:15:03,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 110 states have (on average 1.481818181818182) internal successors, (163), 127 states have internal predecessors, (163), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:15:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2025-03-04 11:15:03,020 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 32 [2025-03-04 11:15:03,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:03,020 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2025-03-04 11:15:03,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:15:03,020 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2025-03-04 11:15:03,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-04 11:15:03,020 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:03,020 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:03,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 11:15:03,021 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:03,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:03,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1144833186, now seen corresponding path program 1 times [2025-03-04 11:15:03,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:03,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048522366] [2025-03-04 11:15:03,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:03,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:03,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:15:03,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:15:03,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:03,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:03,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77281705] [2025-03-04 11:15:03,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:03,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:03,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:03,035 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:03,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 11:15:03,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:15:03,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:15:03,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:03,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:03,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:15:03,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:03,168 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:03,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:03,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048522366] [2025-03-04 11:15:03,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:03,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77281705] [2025-03-04 11:15:03,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77281705] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:03,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:03,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:15:03,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209914347] [2025-03-04 11:15:03,310 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:03,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:15:03,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:03,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:15:03,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:03,311 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:15:03,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:03,408 INFO L93 Difference]: Finished difference Result 145 states and 182 transitions. [2025-03-04 11:15:03,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:15:03,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2025-03-04 11:15:03,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:03,409 INFO L225 Difference]: With dead ends: 145 [2025-03-04 11:15:03,409 INFO L226 Difference]: Without dead ends: 138 [2025-03-04 11:15:03,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:15:03,409 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 50 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:03,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 51 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:03,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-03-04 11:15:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 134. [2025-03-04 11:15:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 123 states have internal predecessors, (151), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:15:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 167 transitions. [2025-03-04 11:15:03,419 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 167 transitions. Word has length 33 [2025-03-04 11:15:03,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:03,419 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 167 transitions. [2025-03-04 11:15:03,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:15:03,420 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2025-03-04 11:15:03,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-04 11:15:03,421 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:03,421 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:03,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 11:15:03,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:03,622 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:03,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:03,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1130090413, now seen corresponding path program 1 times [2025-03-04 11:15:03,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:03,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472938997] [2025-03-04 11:15:03,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:03,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:03,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 11:15:03,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 11:15:03,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:03,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:03,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282098998] [2025-03-04 11:15:03,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:03,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:03,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:03,638 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:03,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 11:15:03,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 11:15:03,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 11:15:03,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:03,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:03,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:15:03,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:03,762 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:03,762 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:03,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:03,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472938997] [2025-03-04 11:15:03,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:03,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282098998] [2025-03-04 11:15:03,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282098998] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:03,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:03,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:15:03,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231123716] [2025-03-04 11:15:03,907 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:03,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:15:03,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:03,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:15:03,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:03,908 INFO L87 Difference]: Start difference. First operand 134 states and 167 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:15:04,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:04,018 INFO L93 Difference]: Finished difference Result 180 states and 223 transitions. [2025-03-04 11:15:04,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:15:04,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2025-03-04 11:15:04,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:04,019 INFO L225 Difference]: With dead ends: 180 [2025-03-04 11:15:04,019 INFO L226 Difference]: Without dead ends: 177 [2025-03-04 11:15:04,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:04,019 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 63 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:04,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 102 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:04,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-03-04 11:15:04,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 169. [2025-03-04 11:15:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 144 states have (on average 1.3472222222222223) internal successors, (194), 156 states have internal predecessors, (194), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:15:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2025-03-04 11:15:04,027 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 34 [2025-03-04 11:15:04,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:04,027 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2025-03-04 11:15:04,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:15:04,027 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2025-03-04 11:15:04,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-04 11:15:04,028 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:04,028 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:04,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 11:15:04,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:04,228 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:04,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:04,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1162629343, now seen corresponding path program 1 times [2025-03-04 11:15:04,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:04,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972155052] [2025-03-04 11:15:04,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:04,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:04,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 11:15:04,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 11:15:04,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:04,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:04,294 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:04,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:04,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972155052] [2025-03-04 11:15:04,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972155052] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:04,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379420341] [2025-03-04 11:15:04,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:04,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:04,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:04,297 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:04,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 11:15:04,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 11:15:04,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 11:15:04,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:04,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:04,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:15:04,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:04,412 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:15:04,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379420341] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:15:04,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:04,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-04 11:15:04,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848746356] [2025-03-04 11:15:04,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:15:04,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:15:04,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:04,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:15:04,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:15:04,413 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:15:04,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:04,472 INFO L93 Difference]: Finished difference Result 169 states and 214 transitions. [2025-03-04 11:15:04,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:15:04,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2025-03-04 11:15:04,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:04,473 INFO L225 Difference]: With dead ends: 169 [2025-03-04 11:15:04,473 INFO L226 Difference]: Without dead ends: 167 [2025-03-04 11:15:04,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:15:04,474 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:04,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 51 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:04,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-03-04 11:15:04,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2025-03-04 11:15:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 141 states have (on average 1.3333333333333333) internal successors, (188), 151 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:15:04,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 208 transitions. [2025-03-04 11:15:04,481 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 208 transitions. Word has length 35 [2025-03-04 11:15:04,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:04,481 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 208 transitions. [2025-03-04 11:15:04,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:15:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 208 transitions. [2025-03-04 11:15:04,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-04 11:15:04,482 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:04,482 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:04,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 11:15:04,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-04 11:15:04,683 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:04,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:04,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1681771276, now seen corresponding path program 1 times [2025-03-04 11:15:04,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:04,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642074325] [2025-03-04 11:15:04,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:04,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:04,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:15:04,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:15:04,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:04,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:04,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:15:04,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:04,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642074325] [2025-03-04 11:15:04,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642074325] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:04,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873650945] [2025-03-04 11:15:04,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:04,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:04,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:04,837 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:04,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 11:15:04,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:15:04,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:15:04,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:04,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:04,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:15:04,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:04,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:05,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873650945] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:05,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:15:05,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2025-03-04 11:15:05,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363231488] [2025-03-04 11:15:05,009 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:05,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:15:05,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:05,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:15:05,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:15:05,010 INFO L87 Difference]: Start difference. First operand 164 states and 208 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 11:15:05,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:05,335 INFO L93 Difference]: Finished difference Result 176 states and 212 transitions. [2025-03-04 11:15:05,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 11:15:05,336 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 36 [2025-03-04 11:15:05,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:05,336 INFO L225 Difference]: With dead ends: 176 [2025-03-04 11:15:05,336 INFO L226 Difference]: Without dead ends: 161 [2025-03-04 11:15:05,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2025-03-04 11:15:05,337 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 102 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:05,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 120 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:05,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-03-04 11:15:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 155. [2025-03-04 11:15:05,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 133 states have (on average 1.263157894736842) internal successors, (168), 142 states have internal predecessors, (168), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:15:05,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 188 transitions. [2025-03-04 11:15:05,344 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 188 transitions. Word has length 36 [2025-03-04 11:15:05,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:05,344 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 188 transitions. [2025-03-04 11:15:05,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 11:15:05,344 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 188 transitions. [2025-03-04 11:15:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-04 11:15:05,344 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:05,344 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:05,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:05,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:05,545 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:05,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:05,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1725126818, now seen corresponding path program 1 times [2025-03-04 11:15:05,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:05,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870617370] [2025-03-04 11:15:05,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:05,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:05,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:15:05,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:15:05,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:05,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:15:05,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870617370] [2025-03-04 11:15:05,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870617370] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460764755] [2025-03-04 11:15:05,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:05,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:05,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:05,659 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:05,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 11:15:05,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:15:05,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:15:05,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:05,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:05,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:15:05,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:15:05,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:15:05,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460764755] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:05,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:05,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2025-03-04 11:15:05,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173540034] [2025-03-04 11:15:05,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:05,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-04 11:15:05,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:05,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-04 11:15:05,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:15:05,944 INFO L87 Difference]: Start difference. First operand 155 states and 188 transitions. Second operand has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:15:06,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:06,197 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2025-03-04 11:15:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 11:15:06,197 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2025-03-04 11:15:06,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:06,198 INFO L225 Difference]: With dead ends: 156 [2025-03-04 11:15:06,198 INFO L226 Difference]: Without dead ends: 153 [2025-03-04 11:15:06,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2025-03-04 11:15:06,199 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 99 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:06,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:06,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-03-04 11:15:06,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 131. [2025-03-04 11:15:06,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 119 states have internal predecessors, (136), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 11:15:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2025-03-04 11:15:06,204 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 37 [2025-03-04 11:15:06,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:06,205 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2025-03-04 11:15:06,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:15:06,205 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2025-03-04 11:15:06,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-04 11:15:06,205 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:06,205 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:06,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:06,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-04 11:15:06,406 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:06,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:06,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1939323799, now seen corresponding path program 1 times [2025-03-04 11:15:06,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:06,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542229193] [2025-03-04 11:15:06,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:06,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:06,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:15:06,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:15:06,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:06,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:06,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511652971] [2025-03-04 11:15:06,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:06,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:06,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:06,415 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:06,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 11:15:06,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:15:06,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:15:06,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:06,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:06,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:15:06,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:06,554 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:06,627 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:15:06,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:06,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542229193] [2025-03-04 11:15:06,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:06,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511652971] [2025-03-04 11:15:06,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511652971] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:06,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:15:06,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-04 11:15:06,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343383024] [2025-03-04 11:15:06,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:06,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:15:06,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:06,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:15:06,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:06,628 INFO L87 Difference]: Start difference. First operand 131 states and 154 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:15:06,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:06,812 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2025-03-04 11:15:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:15:06,813 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2025-03-04 11:15:06,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:06,814 INFO L225 Difference]: With dead ends: 209 [2025-03-04 11:15:06,814 INFO L226 Difference]: Without dead ends: 145 [2025-03-04 11:15:06,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:15:06,814 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 76 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:06,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 81 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:06,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2025-03-04 11:15:06,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2025-03-04 11:15:06,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 132 states have internal predecessors, (146), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:15:06,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 166 transitions. [2025-03-04 11:15:06,826 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 166 transitions. Word has length 38 [2025-03-04 11:15:06,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:06,826 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 166 transitions. [2025-03-04 11:15:06,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:15:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 166 transitions. [2025-03-04 11:15:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-04 11:15:06,827 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:06,827 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:06,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 11:15:07,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-04 11:15:07,031 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:07,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1706353547, now seen corresponding path program 2 times [2025-03-04 11:15:07,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:07,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860479042] [2025-03-04 11:15:07,032 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:07,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:07,035 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-03-04 11:15:07,042 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:15:07,042 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:07,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:07,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482643965] [2025-03-04 11:15:07,042 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:07,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:07,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:07,045 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:07,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 11:15:07,064 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-03-04 11:15:07,073 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:15:07,073 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:07,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:07,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:15:07,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:07,160 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:15:07,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:07,317 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:15:07,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:07,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860479042] [2025-03-04 11:15:07,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:07,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482643965] [2025-03-04 11:15:07,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482643965] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:07,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:15:07,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-04 11:15:07,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15449690] [2025-03-04 11:15:07,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:07,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:15:07,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:07,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:15:07,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:15:07,318 INFO L87 Difference]: Start difference. First operand 145 states and 166 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:15:07,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:07,612 INFO L93 Difference]: Finished difference Result 295 states and 349 transitions. [2025-03-04 11:15:07,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:15:07,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2025-03-04 11:15:07,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:07,614 INFO L225 Difference]: With dead ends: 295 [2025-03-04 11:15:07,614 INFO L226 Difference]: Without dead ends: 284 [2025-03-04 11:15:07,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:15:07,614 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 168 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:07,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 170 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:07,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2025-03-04 11:15:07,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2025-03-04 11:15:07,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 253 states have (on average 1.1541501976284585) internal successors, (292), 257 states have internal predecessors, (292), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 11:15:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 328 transitions. [2025-03-04 11:15:07,631 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 328 transitions. Word has length 53 [2025-03-04 11:15:07,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:07,632 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 328 transitions. [2025-03-04 11:15:07,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:15:07,632 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 328 transitions. [2025-03-04 11:15:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-04 11:15:07,632 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:07,632 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:07,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 11:15:07,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-04 11:15:07,833 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:07,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:07,833 INFO L85 PathProgramCache]: Analyzing trace with hash 104948459, now seen corresponding path program 1 times [2025-03-04 11:15:07,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:07,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980399104] [2025-03-04 11:15:07,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:07,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:07,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-04 11:15:07,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 11:15:07,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:07,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:15:07,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:07,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980399104] [2025-03-04 11:15:07,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980399104] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:07,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859435569] [2025-03-04 11:15:07,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:07,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:07,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:07,878 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:07,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 11:15:07,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-04 11:15:07,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 11:15:07,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:07,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:07,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:15:07,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:15:07,958 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:08,010 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:15:08,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859435569] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:08,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:08,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-03-04 11:15:08,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897309505] [2025-03-04 11:15:08,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:08,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:15:08,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:08,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:15:08,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:08,012 INFO L87 Difference]: Start difference. First operand 278 states and 328 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-04 11:15:08,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:08,103 INFO L93 Difference]: Finished difference Result 768 states and 969 transitions. [2025-03-04 11:15:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:15:08,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 65 [2025-03-04 11:15:08,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:08,106 INFO L225 Difference]: With dead ends: 768 [2025-03-04 11:15:08,106 INFO L226 Difference]: Without dead ends: 766 [2025-03-04 11:15:08,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:08,107 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:08,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 91 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:08,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2025-03-04 11:15:08,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2025-03-04 11:15:08,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 708 states have (on average 1.1257062146892656) internal successors, (797), 711 states have internal predecessors, (797), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-04 11:15:08,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 901 transitions. [2025-03-04 11:15:08,137 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 901 transitions. Word has length 65 [2025-03-04 11:15:08,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:08,137 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 901 transitions. [2025-03-04 11:15:08,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-04 11:15:08,137 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 901 transitions. [2025-03-04 11:15:08,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-04 11:15:08,138 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:08,138 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:08,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:08,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-04 11:15:08,342 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:08,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:08,342 INFO L85 PathProgramCache]: Analyzing trace with hash 752813580, now seen corresponding path program 1 times [2025-03-04 11:15:08,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:08,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668949936] [2025-03-04 11:15:08,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:08,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:08,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:15:08,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:15:08,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:08,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:08,429 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:15:08,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:08,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668949936] [2025-03-04 11:15:08,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668949936] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:08,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861045098] [2025-03-04 11:15:08,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:08,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:08,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:08,432 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:08,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 11:15:08,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:15:08,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:15:08,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:08,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:08,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:15:08,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:15:08,521 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:08,572 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 35 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:15:08,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861045098] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:08,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:08,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2025-03-04 11:15:08,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434000257] [2025-03-04 11:15:08,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:08,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:15:08,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:08,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:15:08,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:15:08,573 INFO L87 Difference]: Start difference. First operand 766 states and 901 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:15:08,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:08,632 INFO L93 Difference]: Finished difference Result 938 states and 1099 transitions. [2025-03-04 11:15:08,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:15:08,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 74 [2025-03-04 11:15:08,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:08,635 INFO L225 Difference]: With dead ends: 938 [2025-03-04 11:15:08,635 INFO L226 Difference]: Without dead ends: 523 [2025-03-04 11:15:08,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:15:08,636 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:08,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 115 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:15:08,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-03-04 11:15:08,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 522. [2025-03-04 11:15:08,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 481 states have (on average 1.1081081081081081) internal successors, (533), 484 states have internal predecessors, (533), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-04 11:15:08,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 603 transitions. [2025-03-04 11:15:08,655 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 603 transitions. Word has length 74 [2025-03-04 11:15:08,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:08,656 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 603 transitions. [2025-03-04 11:15:08,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:15:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 603 transitions. [2025-03-04 11:15:08,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-04 11:15:08,657 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:08,657 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:08,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-04 11:15:08,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:08,858 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:08,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:08,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2071302579, now seen corresponding path program 2 times [2025-03-04 11:15:08,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:08,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675053879] [2025-03-04 11:15:08,858 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:08,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:08,861 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 74 statements into 2 equivalence classes. [2025-03-04 11:15:08,866 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:15:08,866 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:08,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:09,043 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-04 11:15:09,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:09,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675053879] [2025-03-04 11:15:09,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675053879] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:09,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148995346] [2025-03-04 11:15:09,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:09,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:09,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:09,046 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:09,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 11:15:09,064 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 74 statements into 2 equivalence classes. [2025-03-04 11:15:09,075 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:15:09,075 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:09,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:09,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:15:09,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:09,193 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:15:09,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:15:09,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148995346] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:09,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:09,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2025-03-04 11:15:09,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134466417] [2025-03-04 11:15:09,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:09,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-04 11:15:09,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:09,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-04 11:15:09,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2025-03-04 11:15:09,338 INFO L87 Difference]: Start difference. First operand 522 states and 603 transitions. Second operand has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-04 11:15:10,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:10,446 INFO L93 Difference]: Finished difference Result 760 states and 869 transitions. [2025-03-04 11:15:10,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2025-03-04 11:15:10,446 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 74 [2025-03-04 11:15:10,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:10,449 INFO L225 Difference]: With dead ends: 760 [2025-03-04 11:15:10,449 INFO L226 Difference]: Without dead ends: 759 [2025-03-04 11:15:10,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1258, Invalid=4144, Unknown=0, NotChecked=0, Total=5402 [2025-03-04 11:15:10,451 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 286 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:10,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 169 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:15:10,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2025-03-04 11:15:10,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 521. [2025-03-04 11:15:10,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 481 states have (on average 1.0706860706860706) internal successors, (515), 483 states have internal predecessors, (515), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-04 11:15:10,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 585 transitions. [2025-03-04 11:15:10,474 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 585 transitions. Word has length 74 [2025-03-04 11:15:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:10,475 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 585 transitions. [2025-03-04 11:15:10,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-04 11:15:10,475 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 585 transitions. [2025-03-04 11:15:10,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 11:15:10,478 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:10,478 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:10,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-04 11:15:10,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-04 11:15:10,682 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:10,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:10,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1864426151, now seen corresponding path program 1 times [2025-03-04 11:15:10,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:10,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417475484] [2025-03-04 11:15:10,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:10,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:10,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 11:15:10,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 11:15:10,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:10,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:15:10,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:10,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417475484] [2025-03-04 11:15:10,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417475484] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:10,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099510464] [2025-03-04 11:15:10,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:10,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:10,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:10,750 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:10,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 11:15:10,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 11:15:10,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 11:15:10,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:10,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:10,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:15:10,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:15:10,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:15:10,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099510464] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:10,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:10,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 11:15:10,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214458404] [2025-03-04 11:15:10,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:10,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:15:10,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:10,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:15:10,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:10,935 INFO L87 Difference]: Start difference. First operand 521 states and 585 transitions. Second operand has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:15:11,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:11,052 INFO L93 Difference]: Finished difference Result 1248 states and 1417 transitions. [2025-03-04 11:15:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:15:11,052 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 87 [2025-03-04 11:15:11,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:11,057 INFO L225 Difference]: With dead ends: 1248 [2025-03-04 11:15:11,057 INFO L226 Difference]: Without dead ends: 1247 [2025-03-04 11:15:11,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:11,057 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 92 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:11,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 173 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:11,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2025-03-04 11:15:11,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1239. [2025-03-04 11:15:11,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1151 states have (on average 1.0747176368375326) internal successors, (1237), 1153 states have internal predecessors, (1237), 83 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-03-04 11:15:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1403 transitions. [2025-03-04 11:15:11,118 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1403 transitions. Word has length 87 [2025-03-04 11:15:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:11,119 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1403 transitions. [2025-03-04 11:15:11,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:15:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1403 transitions. [2025-03-04 11:15:11,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-04 11:15:11,119 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:11,119 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:11,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:11,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:11,320 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:11,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:11,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1736655700, now seen corresponding path program 1 times [2025-03-04 11:15:11,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:11,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067612340] [2025-03-04 11:15:11,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:11,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:11,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-04 11:15:11,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-04 11:15:11,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:11,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:11,386 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-04 11:15:11,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:11,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067612340] [2025-03-04 11:15:11,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067612340] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:11,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487168638] [2025-03-04 11:15:11,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:15:11,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:11,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:11,389 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:11,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 11:15:11,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-04 11:15:11,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-04 11:15:11,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:11,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:11,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:15:11,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:11,484 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 70 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 11:15:11,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:11,546 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-04 11:15:11,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487168638] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:11,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:11,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2025-03-04 11:15:11,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570953424] [2025-03-04 11:15:11,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:11,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:15:11,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:11,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:15:11,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:11,548 INFO L87 Difference]: Start difference. First operand 1239 states and 1403 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-04 11:15:11,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:11,680 INFO L93 Difference]: Finished difference Result 1303 states and 1470 transitions. [2025-03-04 11:15:11,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:15:11,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 91 [2025-03-04 11:15:11,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:11,684 INFO L225 Difference]: With dead ends: 1303 [2025-03-04 11:15:11,685 INFO L226 Difference]: Without dead ends: 1184 [2025-03-04 11:15:11,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 176 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:15:11,685 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 33 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:11,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 133 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:11,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2025-03-04 11:15:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1182. [2025-03-04 11:15:11,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1097 states have (on average 1.0665451230628988) internal successors, (1170), 1099 states have internal predecessors, (1170), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-04 11:15:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1330 transitions. [2025-03-04 11:15:11,727 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1330 transitions. Word has length 91 [2025-03-04 11:15:11,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:11,727 INFO L471 AbstractCegarLoop]: Abstraction has 1182 states and 1330 transitions. [2025-03-04 11:15:11,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-04 11:15:11,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1330 transitions. [2025-03-04 11:15:11,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-04 11:15:11,728 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:11,728 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:11,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:11,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:11,930 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:11,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:11,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1235061652, now seen corresponding path program 2 times [2025-03-04 11:15:11,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:11,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999530451] [2025-03-04 11:15:11,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:11,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:11,937 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 11:15:11,943 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 11:15:11,943 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:11,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:12,037 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 40 proven. 96 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:15:12,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:12,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999530451] [2025-03-04 11:15:12,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999530451] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:12,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960272278] [2025-03-04 11:15:12,037 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:12,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:12,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:12,039 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:12,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 11:15:12,064 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 11:15:12,080 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 11:15:12,080 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:12,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:12,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:15:12,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:15:12,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:15:12,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960272278] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:12,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:12,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2025-03-04 11:15:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817575805] [2025-03-04 11:15:12,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:12,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:15:12,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:12,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:15:12,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:15:12,331 INFO L87 Difference]: Start difference. First operand 1182 states and 1330 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:15:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:12,571 INFO L93 Difference]: Finished difference Result 2651 states and 2990 transitions. [2025-03-04 11:15:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:15:12,571 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 110 [2025-03-04 11:15:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:12,578 INFO L225 Difference]: With dead ends: 2651 [2025-03-04 11:15:12,578 INFO L226 Difference]: Without dead ends: 1914 [2025-03-04 11:15:12,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 211 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:15:12,580 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 28 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:12,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 239 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2025-03-04 11:15:12,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1394. [2025-03-04 11:15:12,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1295 states have (on average 1.061003861003861) internal successors, (1374), 1297 states have internal predecessors, (1374), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-04 11:15:12,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1562 transitions. [2025-03-04 11:15:12,642 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1562 transitions. Word has length 110 [2025-03-04 11:15:12,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:12,643 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1562 transitions. [2025-03-04 11:15:12,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:15:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1562 transitions. [2025-03-04 11:15:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 11:15:12,645 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:12,645 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:12,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:12,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:12,846 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:12,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:12,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2109757835, now seen corresponding path program 3 times [2025-03-04 11:15:12,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:12,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84676191] [2025-03-04 11:15:12,846 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:12,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:12,851 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:15:12,865 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:15:12,866 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:15:12,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:12,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1475987634] [2025-03-04 11:15:12,870 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:12,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:12,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:12,872 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:12,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 11:15:12,898 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:15:12,910 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 53 of 129 statements. [2025-03-04 11:15:12,910 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-04 11:15:12,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:12,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:15:12,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:12,946 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2025-03-04 11:15:12,947 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:13,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:13,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84676191] [2025-03-04 11:15:13,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:13,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475987634] [2025-03-04 11:15:13,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475987634] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:13,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:13,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-04 11:15:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680387611] [2025-03-04 11:15:13,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:13,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:15:13,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:13,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:15:13,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:15:13,071 INFO L87 Difference]: Start difference. First operand 1394 states and 1562 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:15:13,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:13,153 INFO L93 Difference]: Finished difference Result 1396 states and 1562 transitions. [2025-03-04 11:15:13,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:15:13,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 129 [2025-03-04 11:15:13,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:13,157 INFO L225 Difference]: With dead ends: 1396 [2025-03-04 11:15:13,157 INFO L226 Difference]: Without dead ends: 1395 [2025-03-04 11:15:13,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:13,158 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:13,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 73 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:15:13,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2025-03-04 11:15:13,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1394. [2025-03-04 11:15:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1295 states have (on average 1.0586872586872587) internal successors, (1371), 1297 states have internal predecessors, (1371), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-04 11:15:13,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1559 transitions. [2025-03-04 11:15:13,207 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1559 transitions. Word has length 129 [2025-03-04 11:15:13,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:13,207 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1559 transitions. [2025-03-04 11:15:13,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:15:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1559 transitions. [2025-03-04 11:15:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 11:15:13,209 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:13,209 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:13,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:13,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:13,409 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:13,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:13,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1349065746, now seen corresponding path program 3 times [2025-03-04 11:15:13,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:13,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310845558] [2025-03-04 11:15:13,410 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:13,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:13,414 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:15:13,432 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:15:13,433 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:15:13,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:13,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1645525518] [2025-03-04 11:15:13,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:13,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:13,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:13,435 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:13,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 11:15:13,458 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:15:13,481 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 110 of 129 statements. [2025-03-04 11:15:13,481 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-04 11:15:13,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:13,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:15:13,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:13,624 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-04 11:15:13,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:13,832 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-04 11:15:13,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:13,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310845558] [2025-03-04 11:15:13,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:13,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645525518] [2025-03-04 11:15:13,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645525518] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:13,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:15:13,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2025-03-04 11:15:13,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705944713] [2025-03-04 11:15:13,833 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:13,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 11:15:13,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:13,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 11:15:13,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:15:13,833 INFO L87 Difference]: Start difference. First operand 1394 states and 1559 transitions. Second operand has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 14 states have internal predecessors, (146), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:14,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:14,468 INFO L93 Difference]: Finished difference Result 1721 states and 1919 transitions. [2025-03-04 11:15:14,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-04 11:15:14,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 14 states have internal predecessors, (146), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 129 [2025-03-04 11:15:14,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:14,473 INFO L225 Difference]: With dead ends: 1721 [2025-03-04 11:15:14,473 INFO L226 Difference]: Without dead ends: 1720 [2025-03-04 11:15:14,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=1188, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 11:15:14,474 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 266 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:14,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 289 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:15:14,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2025-03-04 11:15:14,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1584. [2025-03-04 11:15:14,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1473 states have (on average 1.054989816700611) internal successors, (1554), 1475 states have internal predecessors, (1554), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2025-03-04 11:15:14,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1766 transitions. [2025-03-04 11:15:14,541 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1766 transitions. Word has length 129 [2025-03-04 11:15:14,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:14,541 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 1766 transitions. [2025-03-04 11:15:14,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 14 states have internal predecessors, (146), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1766 transitions. [2025-03-04 11:15:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 11:15:14,543 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:14,543 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:14,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:14,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-04 11:15:14,743 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:14,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:14,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1438366325, now seen corresponding path program 4 times [2025-03-04 11:15:14,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:14,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810636498] [2025-03-04 11:15:14,744 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:14,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:14,748 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 129 statements into 2 equivalence classes. [2025-03-04 11:15:14,765 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:15:14,765 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:14,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:14,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527279194] [2025-03-04 11:15:14,766 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:14,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:14,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:14,769 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:14,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 11:15:14,791 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 129 statements into 2 equivalence classes. [2025-03-04 11:15:14,812 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:15:14,812 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:14,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:14,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-04 11:15:14,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:15,976 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:15:16,023 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 210 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-03-04 11:15:16,023 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:16,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:16,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810636498] [2025-03-04 11:15:16,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:16,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527279194] [2025-03-04 11:15:16,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527279194] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:16,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:16,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2025-03-04 11:15:16,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273093991] [2025-03-04 11:15:16,250 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:16,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-04 11:15:16,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:16,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-04 11:15:16,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:15:16,251 INFO L87 Difference]: Start difference. First operand 1584 states and 1766 transitions. Second operand has 27 states, 25 states have (on average 4.04) internal successors, (101), 24 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:15:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:17,229 INFO L93 Difference]: Finished difference Result 1801 states and 2005 transitions. [2025-03-04 11:15:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-04 11:15:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 4.04) internal successors, (101), 24 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 129 [2025-03-04 11:15:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:17,235 INFO L225 Difference]: With dead ends: 1801 [2025-03-04 11:15:17,235 INFO L226 Difference]: Without dead ends: 1800 [2025-03-04 11:15:17,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2025-03-04 11:15:17,236 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 99 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:17,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 300 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 11:15:17,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2025-03-04 11:15:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1614. [2025-03-04 11:15:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1501 states have (on average 1.0539640239840107) internal successors, (1582), 1503 states have internal predecessors, (1582), 108 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2025-03-04 11:15:17,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 1798 transitions. [2025-03-04 11:15:17,298 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 1798 transitions. Word has length 129 [2025-03-04 11:15:17,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:17,299 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 1798 transitions. [2025-03-04 11:15:17,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 4.04) internal successors, (101), 24 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:15:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 1798 transitions. [2025-03-04 11:15:17,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-04 11:15:17,300 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:17,300 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:17,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-04 11:15:17,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-04 11:15:17,502 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:17,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:17,502 INFO L85 PathProgramCache]: Analyzing trace with hash 892015019, now seen corresponding path program 2 times [2025-03-04 11:15:17,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:17,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161469888] [2025-03-04 11:15:17,502 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:17,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:17,506 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-03-04 11:15:17,521 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 11:15:17,521 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:17,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:17,608 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:17,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:17,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161469888] [2025-03-04 11:15:17,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161469888] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:17,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700360574] [2025-03-04 11:15:17,608 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:17,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:17,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:17,610 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:17,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 11:15:17,635 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-03-04 11:15:17,654 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 11:15:17,654 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:17,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:17,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:15:17,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:17,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:17,863 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:17,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700360574] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:17,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:17,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2025-03-04 11:15:17,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171770561] [2025-03-04 11:15:17,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:17,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-04 11:15:17,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:17,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-04 11:15:17,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:15:17,865 INFO L87 Difference]: Start difference. First operand 1614 states and 1798 transitions. Second operand has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:18,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:18,087 INFO L93 Difference]: Finished difference Result 3055 states and 3526 transitions. [2025-03-04 11:15:18,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-04 11:15:18,087 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 141 [2025-03-04 11:15:18,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:18,094 INFO L225 Difference]: With dead ends: 3055 [2025-03-04 11:15:18,094 INFO L226 Difference]: Without dead ends: 3054 [2025-03-04 11:15:18,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:15:18,095 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:18,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 154 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:18,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2025-03-04 11:15:18,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 3054. [2025-03-04 11:15:18,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 2845 states have (on average 1.0622144112478031) internal successors, (3022), 2847 states have internal predecessors, (3022), 204 states have call successors, (204), 2 states have call predecessors, (204), 2 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2025-03-04 11:15:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3430 transitions. [2025-03-04 11:15:18,214 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3430 transitions. Word has length 141 [2025-03-04 11:15:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:18,215 INFO L471 AbstractCegarLoop]: Abstraction has 3054 states and 3430 transitions. [2025-03-04 11:15:18,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3430 transitions. [2025-03-04 11:15:18,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-03-04 11:15:18,216 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:18,217 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:18,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-04 11:15:18,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:18,421 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:18,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:18,421 INFO L85 PathProgramCache]: Analyzing trace with hash -869705810, now seen corresponding path program 5 times [2025-03-04 11:15:18,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:18,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619608081] [2025-03-04 11:15:18,421 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:18,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:18,426 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 148 statements into 8 equivalence classes. [2025-03-04 11:15:18,440 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 11:15:18,440 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-04 11:15:18,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 109 proven. 180 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:18,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:18,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619608081] [2025-03-04 11:15:18,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619608081] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:18,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824996923] [2025-03-04 11:15:18,550 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:18,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:18,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:18,552 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:18,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 11:15:18,573 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 148 statements into 8 equivalence classes. [2025-03-04 11:15:18,596 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 11:15:18,596 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-04 11:15:18,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:18,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:18,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:18,751 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:18,751 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:18,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824996923] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:18,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:18,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2025-03-04 11:15:18,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412795765] [2025-03-04 11:15:18,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:18,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 11:15:18,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:18,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 11:15:18,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:15:18,888 INFO L87 Difference]: Start difference. First operand 3054 states and 3430 transitions. Second operand has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:15:19,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:19,187 INFO L93 Difference]: Finished difference Result 6445 states and 7249 transitions. [2025-03-04 11:15:19,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:15:19,187 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 148 [2025-03-04 11:15:19,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:19,199 INFO L225 Difference]: With dead ends: 6445 [2025-03-04 11:15:19,199 INFO L226 Difference]: Without dead ends: 4856 [2025-03-04 11:15:19,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 285 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:15:19,202 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 29 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:19,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 254 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:19,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2025-03-04 11:15:19,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 3422. [2025-03-04 11:15:19,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3422 states, 3189 states have (on average 1.057071182188774) internal successors, (3371), 3191 states have internal predecessors, (3371), 228 states have call successors, (228), 2 states have call predecessors, (228), 2 states have return successors, (228), 228 states have call predecessors, (228), 228 states have call successors, (228) [2025-03-04 11:15:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 3827 transitions. [2025-03-04 11:15:19,351 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 3827 transitions. Word has length 148 [2025-03-04 11:15:19,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:19,351 INFO L471 AbstractCegarLoop]: Abstraction has 3422 states and 3827 transitions. [2025-03-04 11:15:19,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:15:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 3827 transitions. [2025-03-04 11:15:19,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-03-04 11:15:19,353 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:19,354 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:19,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:19,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:19,555 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:19,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash 654654451, now seen corresponding path program 6 times [2025-03-04 11:15:19,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:19,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263508785] [2025-03-04 11:15:19,556 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:19,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:19,560 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 167 statements into 9 equivalence classes. [2025-03-04 11:15:19,571 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 167 of 167 statements. [2025-03-04 11:15:19,571 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-03-04 11:15:19,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:19,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921696077] [2025-03-04 11:15:19,572 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:19,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:19,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:19,574 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:19,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 11:15:19,602 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 167 statements into 9 equivalence classes. [2025-03-04 11:15:19,627 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 148 of 167 statements. [2025-03-04 11:15:19,628 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-03-04 11:15:19,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:19,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 11:15:19,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2025-03-04 11:15:19,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:19,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:19,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263508785] [2025-03-04 11:15:19,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:19,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921696077] [2025-03-04 11:15:19,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921696077] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:19,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:19,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 11:15:19,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628922048] [2025-03-04 11:15:19,981 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:19,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:15:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:19,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:15:19,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:19,982 INFO L87 Difference]: Start difference. First operand 3422 states and 3827 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-04 11:15:20,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:20,236 INFO L93 Difference]: Finished difference Result 3877 states and 4334 transitions. [2025-03-04 11:15:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:15:20,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 167 [2025-03-04 11:15:20,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:20,245 INFO L225 Difference]: With dead ends: 3877 [2025-03-04 11:15:20,245 INFO L226 Difference]: Without dead ends: 3876 [2025-03-04 11:15:20,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:20,246 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:20,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 221 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3876 states. [2025-03-04 11:15:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3876 to 3467. [2025-03-04 11:15:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3467 states, 3231 states have (on average 1.0563293098112039) internal successors, (3413), 3233 states have internal predecessors, (3413), 231 states have call successors, (231), 2 states have call predecessors, (231), 2 states have return successors, (231), 231 states have call predecessors, (231), 231 states have call successors, (231) [2025-03-04 11:15:20,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 3875 transitions. [2025-03-04 11:15:20,384 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 3875 transitions. Word has length 167 [2025-03-04 11:15:20,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:20,385 INFO L471 AbstractCegarLoop]: Abstraction has 3467 states and 3875 transitions. [2025-03-04 11:15:20,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-04 11:15:20,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 3875 transitions. [2025-03-04 11:15:20,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-03-04 11:15:20,388 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:20,388 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:20,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-04 11:15:20,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-04 11:15:20,588 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:20,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:20,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1154485359, now seen corresponding path program 2 times [2025-03-04 11:15:20,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:20,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741593658] [2025-03-04 11:15:20,589 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:20,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:20,595 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 182 statements into 2 equivalence classes. [2025-03-04 11:15:20,601 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 182 of 182 statements. [2025-03-04 11:15:20,602 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:20,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:20,726 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:20,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:20,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741593658] [2025-03-04 11:15:20,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741593658] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:20,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38844655] [2025-03-04 11:15:20,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:20,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:20,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:20,728 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:20,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 11:15:20,754 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 182 statements into 2 equivalence classes. [2025-03-04 11:15:20,781 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 182 of 182 statements. [2025-03-04 11:15:20,781 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:20,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:20,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:15:20,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:20,899 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:21,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38844655] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:21,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:21,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-03-04 11:15:21,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771843870] [2025-03-04 11:15:21,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:21,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-04 11:15:21,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:21,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-04 11:15:21,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:15:21,127 INFO L87 Difference]: Start difference. First operand 3467 states and 3875 transitions. Second operand has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-04 11:15:21,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:21,516 INFO L93 Difference]: Finished difference Result 6626 states and 7435 transitions. [2025-03-04 11:15:21,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 11:15:21,517 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 182 [2025-03-04 11:15:21,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:21,532 INFO L225 Difference]: With dead ends: 6626 [2025-03-04 11:15:21,532 INFO L226 Difference]: Without dead ends: 6625 [2025-03-04 11:15:21,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:15:21,534 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 278 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:21,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 281 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:21,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2025-03-04 11:15:21,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 6607. [2025-03-04 11:15:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6607 states, 6161 states have (on average 1.05713358221068) internal successors, (6513), 6163 states have internal predecessors, (6513), 441 states have call successors, (441), 2 states have call predecessors, (441), 2 states have return successors, (441), 441 states have call predecessors, (441), 441 states have call successors, (441) [2025-03-04 11:15:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 7395 transitions. [2025-03-04 11:15:21,775 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 7395 transitions. Word has length 182 [2025-03-04 11:15:21,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:21,775 INFO L471 AbstractCegarLoop]: Abstraction has 6607 states and 7395 transitions. [2025-03-04 11:15:21,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-04 11:15:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 7395 transitions. [2025-03-04 11:15:21,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-03-04 11:15:21,779 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:21,779 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:21,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:21,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-04 11:15:21,979 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:21,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:21,980 INFO L85 PathProgramCache]: Analyzing trace with hash 685435951, now seen corresponding path program 7 times [2025-03-04 11:15:21,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:21,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273941294] [2025-03-04 11:15:21,980 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:21,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:21,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-03-04 11:15:21,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:21,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:21,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:22,110 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 160 proven. 313 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-04 11:15:22,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:22,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273941294] [2025-03-04 11:15:22,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273941294] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:22,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766292223] [2025-03-04 11:15:22,111 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:22,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:22,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:22,113 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:22,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-04 11:15:22,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-03-04 11:15:22,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:22,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:22,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:22,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:22,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:22,438 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 288 proven. 185 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-04 11:15:22,438 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:22,619 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 160 proven. 313 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-04 11:15:22,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766292223] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:22,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:22,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-03-04 11:15:22,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342589817] [2025-03-04 11:15:22,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:22,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-04 11:15:22,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:22,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-04 11:15:22,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:15:22,621 INFO L87 Difference]: Start difference. First operand 6607 states and 7395 transitions. Second operand has 22 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:23,362 INFO L93 Difference]: Finished difference Result 18303 states and 20561 transitions. [2025-03-04 11:15:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 11:15:23,362 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 186 [2025-03-04 11:15:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:23,388 INFO L225 Difference]: With dead ends: 18303 [2025-03-04 11:15:23,388 INFO L226 Difference]: Without dead ends: 13432 [2025-03-04 11:15:23,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 358 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:15:23,398 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 44 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:23,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 278 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:23,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13432 states. [2025-03-04 11:15:23,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13432 to 7178. [2025-03-04 11:15:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7178 states, 6693 states have (on average 1.0522934409084117) internal successors, (7043), 6695 states have internal predecessors, (7043), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2025-03-04 11:15:23,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7178 states to 7178 states and 8003 transitions. [2025-03-04 11:15:23,714 INFO L78 Accepts]: Start accepts. Automaton has 7178 states and 8003 transitions. Word has length 186 [2025-03-04 11:15:23,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:23,716 INFO L471 AbstractCegarLoop]: Abstraction has 7178 states and 8003 transitions. [2025-03-04 11:15:23,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 7178 states and 8003 transitions. [2025-03-04 11:15:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-03-04 11:15:23,718 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:23,718 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:23,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:23,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-04 11:15:23,918 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:23,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:23,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1131665812, now seen corresponding path program 8 times [2025-03-04 11:15:23,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:23,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093165896] [2025-03-04 11:15:23,919 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:23,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:23,924 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 186 statements into 2 equivalence classes. [2025-03-04 11:15:23,929 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:23,929 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:23,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 119 proven. 383 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:24,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:24,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093165896] [2025-03-04 11:15:24,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093165896] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:24,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261429885] [2025-03-04 11:15:24,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:24,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:24,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:24,068 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:24,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-04 11:15:24,095 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 186 statements into 2 equivalence classes. [2025-03-04 11:15:24,118 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:24,118 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:24,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:24,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:15:24,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:24,309 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:24,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261429885] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:24,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:24,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2025-03-04 11:15:24,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335390664] [2025-03-04 11:15:24,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:24,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 11:15:24,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:24,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 11:15:24,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:15:24,461 INFO L87 Difference]: Start difference. First operand 7178 states and 8003 transitions. Second operand has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:24,940 INFO L93 Difference]: Finished difference Result 8367 states and 9299 transitions. [2025-03-04 11:15:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:15:24,941 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 186 [2025-03-04 11:15:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:24,975 INFO L225 Difference]: With dead ends: 8367 [2025-03-04 11:15:24,975 INFO L226 Difference]: Without dead ends: 7174 [2025-03-04 11:15:24,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 357 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:15:24,977 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 29 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:24,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 368 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:24,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2025-03-04 11:15:25,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 7172. [2025-03-04 11:15:25,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7172 states, 6687 states have (on average 1.0494990279647076) internal successors, (7018), 6689 states have internal predecessors, (7018), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2025-03-04 11:15:25,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7172 states to 7172 states and 7978 transitions. [2025-03-04 11:15:25,371 INFO L78 Accepts]: Start accepts. Automaton has 7172 states and 7978 transitions. Word has length 186 [2025-03-04 11:15:25,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:25,371 INFO L471 AbstractCegarLoop]: Abstraction has 7172 states and 7978 transitions. [2025-03-04 11:15:25,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:25,371 INFO L276 IsEmpty]: Start isEmpty. Operand 7172 states and 7978 transitions. [2025-03-04 11:15:25,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-03-04 11:15:25,373 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:25,373 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:25,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-03-04 11:15:25,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:25,574 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:25,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:25,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1811990645, now seen corresponding path program 9 times [2025-03-04 11:15:25,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:25,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894823168] [2025-03-04 11:15:25,574 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:25,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:25,580 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 205 statements into 11 equivalence classes. [2025-03-04 11:15:25,592 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 205 of 205 statements. [2025-03-04 11:15:25,593 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-04 11:15:25,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:25,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750658668] [2025-03-04 11:15:25,593 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:25,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:25,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:25,595 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:25,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-04 11:15:25,619 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 205 statements into 11 equivalence classes. [2025-03-04 11:15:25,642 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 129 of 205 statements. [2025-03-04 11:15:25,642 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:15:25,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:25,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:15:25,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2025-03-04 11:15:25,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:26,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:26,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894823168] [2025-03-04 11:15:26,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:26,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750658668] [2025-03-04 11:15:26,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750658668] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:26,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:26,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 11:15:26,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785362810] [2025-03-04 11:15:26,049 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:26,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:15:26,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:26,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:15:26,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:15:26,050 INFO L87 Difference]: Start difference. First operand 7172 states and 7978 transitions. Second operand has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:15:26,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:26,622 INFO L93 Difference]: Finished difference Result 11488 states and 12804 transitions. [2025-03-04 11:15:26,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 11:15:26,623 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 205 [2025-03-04 11:15:26,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:26,637 INFO L225 Difference]: With dead ends: 11488 [2025-03-04 11:15:26,637 INFO L226 Difference]: Without dead ends: 7522 [2025-03-04 11:15:26,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:15:26,644 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 148 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:26,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 396 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:15:26,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2025-03-04 11:15:26,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 7253. [2025-03-04 11:15:26,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7253 states, 6763 states have (on average 1.0489427768741684) internal successors, (7094), 6765 states have internal predecessors, (7094), 485 states have call successors, (485), 2 states have call predecessors, (485), 2 states have return successors, (485), 485 states have call predecessors, (485), 485 states have call successors, (485) [2025-03-04 11:15:26,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 8064 transitions. [2025-03-04 11:15:26,939 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 8064 transitions. Word has length 205 [2025-03-04 11:15:26,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:26,940 INFO L471 AbstractCegarLoop]: Abstraction has 7253 states and 8064 transitions. [2025-03-04 11:15:26,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:15:26,940 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 8064 transitions. [2025-03-04 11:15:26,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2025-03-04 11:15:26,942 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:26,942 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:26,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-03-04 11:15:27,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:27,147 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:27,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:27,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1266844299, now seen corresponding path program 10 times [2025-03-04 11:15:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:27,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829012014] [2025-03-04 11:15:27,147 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:27,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:27,153 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 243 statements into 2 equivalence classes. [2025-03-04 11:15:27,164 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:27,165 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:27,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:27,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1682311551] [2025-03-04 11:15:27,166 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:27,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:27,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:27,168 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:27,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-04 11:15:27,195 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 243 statements into 2 equivalence classes. [2025-03-04 11:15:27,231 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:27,231 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:27,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:27,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-04 11:15:27,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:28,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 48 proven. 919 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-03-04 11:15:28,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:28,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:28,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829012014] [2025-03-04 11:15:28,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:28,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682311551] [2025-03-04 11:15:28,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682311551] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:28,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:28,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2025-03-04 11:15:28,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125892674] [2025-03-04 11:15:28,754 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:28,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-04 11:15:28,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:28,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-04 11:15:28,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2025-03-04 11:15:28,755 INFO L87 Difference]: Start difference. First operand 7253 states and 8064 transitions. Second operand has 28 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 28 states have internal predecessors, (182), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-04 11:15:31,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:15:35,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:15:40,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:15:43,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:43,544 INFO L93 Difference]: Finished difference Result 7742 states and 8589 transitions. [2025-03-04 11:15:43,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-03-04 11:15:43,544 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 28 states have internal predecessors, (182), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 243 [2025-03-04 11:15:43,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:43,557 INFO L225 Difference]: With dead ends: 7742 [2025-03-04 11:15:43,557 INFO L226 Difference]: Without dead ends: 7576 [2025-03-04 11:15:43,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=384, Invalid=2267, Unknown=1, NotChecked=0, Total=2652 [2025-03-04 11:15:43,563 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 213 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 24 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:43,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 393 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1973 Invalid, 8 Unknown, 0 Unchecked, 12.6s Time] [2025-03-04 11:15:43,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2025-03-04 11:15:43,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7289. [2025-03-04 11:15:43,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7289 states, 6797 states have (on average 1.0485508312490806) internal successors, (7127), 6799 states have internal predecessors, (7127), 487 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 487 states have call predecessors, (487), 487 states have call successors, (487) [2025-03-04 11:15:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7289 states to 7289 states and 8101 transitions. [2025-03-04 11:15:43,862 INFO L78 Accepts]: Start accepts. Automaton has 7289 states and 8101 transitions. Word has length 243 [2025-03-04 11:15:43,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:43,863 INFO L471 AbstractCegarLoop]: Abstraction has 7289 states and 8101 transitions. [2025-03-04 11:15:43,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 28 states have internal predecessors, (182), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-04 11:15:43,863 INFO L276 IsEmpty]: Start isEmpty. Operand 7289 states and 8101 transitions. [2025-03-04 11:15:43,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2025-03-04 11:15:43,866 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:43,866 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:43,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:44,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:44,070 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:44,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:44,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2033077389, now seen corresponding path program 11 times [2025-03-04 11:15:44,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:44,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262131820] [2025-03-04 11:15:44,071 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:44,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:44,077 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 243 statements into 13 equivalence classes. [2025-03-04 11:15:44,094 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:44,094 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-04 11:15:44,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:44,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540890015] [2025-03-04 11:15:44,095 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:44,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:44,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:44,097 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:44,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-04 11:15:44,129 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 243 statements into 13 equivalence classes. [2025-03-04 11:15:44,176 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:44,176 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-04 11:15:44,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:44,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 62 conjuncts are in the unsatisfiable core [2025-03-04 11:15:44,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 288 proven. 649 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2025-03-04 11:15:45,379 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:45,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:45,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262131820] [2025-03-04 11:15:45,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:45,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540890015] [2025-03-04 11:15:45,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540890015] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:45,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:45,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2025-03-04 11:15:45,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899873728] [2025-03-04 11:15:45,570 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:45,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-03-04 11:15:45,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:45,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-03-04 11:15:45,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1304, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 11:15:45,571 INFO L87 Difference]: Start difference. First operand 7289 states and 8101 transitions. Second operand has 36 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 11:15:47,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:47,722 INFO L93 Difference]: Finished difference Result 14244 states and 15816 transitions. [2025-03-04 11:15:47,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-03-04 11:15:47,723 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 243 [2025-03-04 11:15:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:47,734 INFO L225 Difference]: With dead ends: 14244 [2025-03-04 11:15:47,734 INFO L226 Difference]: Without dead ends: 8985 [2025-03-04 11:15:47,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2152 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1101, Invalid=6209, Unknown=0, NotChecked=0, Total=7310 [2025-03-04 11:15:47,744 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 269 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:47,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 321 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-04 11:15:47,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8985 states. [2025-03-04 11:15:48,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8985 to 8911. [2025-03-04 11:15:48,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8311 states have (on average 1.0439176994344843) internal successors, (8676), 8313 states have internal predecessors, (8676), 595 states have call successors, (595), 2 states have call predecessors, (595), 2 states have return successors, (595), 595 states have call predecessors, (595), 595 states have call successors, (595) [2025-03-04 11:15:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 9866 transitions. [2025-03-04 11:15:48,079 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 9866 transitions. Word has length 243 [2025-03-04 11:15:48,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:48,080 INFO L471 AbstractCegarLoop]: Abstraction has 8911 states and 9866 transitions. [2025-03-04 11:15:48,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 11:15:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 9866 transitions. [2025-03-04 11:15:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2025-03-04 11:15:48,082 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:48,083 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:48,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-04 11:15:48,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-03-04 11:15:48,287 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:48,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:48,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1575290866, now seen corresponding path program 12 times [2025-03-04 11:15:48,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:48,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45819413] [2025-03-04 11:15:48,288 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:48,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:48,296 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 262 statements into 14 equivalence classes. [2025-03-04 11:15:48,313 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) and asserted 262 of 262 statements. [2025-03-04 11:15:48,315 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2025-03-04 11:15:48,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 306 proven. 868 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2025-03-04 11:15:48,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:48,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45819413] [2025-03-04 11:15:48,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45819413] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:48,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154374949] [2025-03-04 11:15:48,666 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:48,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:48,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:48,668 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:48,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-04 11:15:48,691 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 262 statements into 14 equivalence classes. [2025-03-04 11:15:48,755 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 224 of 262 statements. [2025-03-04 11:15:48,755 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-03-04 11:15:48,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:48,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-04 11:15:48,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:49,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 0 proven. 817 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2025-03-04 11:15:49,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:49,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154374949] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:49,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:15:49,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 29 [2025-03-04 11:15:49,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193986412] [2025-03-04 11:15:49,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:49,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-04 11:15:49,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:49,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-04 11:15:49,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2025-03-04 11:15:49,310 INFO L87 Difference]: Start difference. First operand 8911 states and 9866 transitions. Second operand has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 29 states have internal predecessors, (302), 21 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:51,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:51,338 INFO L93 Difference]: Finished difference Result 18274 states and 20299 transitions. [2025-03-04 11:15:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2025-03-04 11:15:51,339 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 29 states have internal predecessors, (302), 21 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 262 [2025-03-04 11:15:51,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:51,356 INFO L225 Difference]: With dead ends: 18274 [2025-03-04 11:15:51,356 INFO L226 Difference]: Without dead ends: 12701 [2025-03-04 11:15:51,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=740, Invalid=3682, Unknown=0, NotChecked=0, Total=4422 [2025-03-04 11:15:51,366 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 197 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 4164 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 4192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:51,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 608 Invalid, 4192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4164 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-04 11:15:51,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12701 states. [2025-03-04 11:15:51,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12701 to 10098. [2025-03-04 11:15:51,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10098 states, 9419 states have (on average 1.0440598789680433) internal successors, (9834), 9421 states have internal predecessors, (9834), 674 states have call successors, (674), 2 states have call predecessors, (674), 2 states have return successors, (674), 674 states have call predecessors, (674), 674 states have call successors, (674) [2025-03-04 11:15:51,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10098 states to 10098 states and 11182 transitions. [2025-03-04 11:15:51,800 INFO L78 Accepts]: Start accepts. Automaton has 10098 states and 11182 transitions. Word has length 262 [2025-03-04 11:15:51,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:51,800 INFO L471 AbstractCegarLoop]: Abstraction has 10098 states and 11182 transitions. [2025-03-04 11:15:51,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 29 states have internal predecessors, (302), 21 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:51,800 INFO L276 IsEmpty]: Start isEmpty. Operand 10098 states and 11182 transitions. [2025-03-04 11:15:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2025-03-04 11:15:51,803 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:51,803 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:51,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-04 11:15:52,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:52,004 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:52,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:52,004 INFO L85 PathProgramCache]: Analyzing trace with hash -191666068, now seen corresponding path program 13 times [2025-03-04 11:15:52,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:52,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228685013] [2025-03-04 11:15:52,005 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:52,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:52,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 262 statements into 1 equivalence classes. [2025-03-04 11:15:52,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 262 of 262 statements. [2025-03-04 11:15:52,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:52,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 258 proven. 850 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:52,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:52,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228685013] [2025-03-04 11:15:52,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228685013] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:52,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843375818] [2025-03-04 11:15:52,284 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:52,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:52,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:52,286 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:52,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-04 11:15:52,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 262 statements into 1 equivalence classes. [2025-03-04 11:15:52,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 262 of 262 statements. [2025-03-04 11:15:52,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:52,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:52,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:15:52,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:52,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:52,701 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:52,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:52,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843375818] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:52,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:52,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 24 [2025-03-04 11:15:52,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526914870] [2025-03-04 11:15:52,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:52,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-04 11:15:52,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:52,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-04 11:15:52,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:15:52,959 INFO L87 Difference]: Start difference. First operand 10098 states and 11182 transitions. Second operand has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2025-03-04 11:15:53,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:53,776 INFO L93 Difference]: Finished difference Result 10241 states and 11329 transitions. [2025-03-04 11:15:53,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 11:15:53,777 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) Word has length 262 [2025-03-04 11:15:53,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:53,788 INFO L225 Difference]: With dead ends: 10241 [2025-03-04 11:15:53,789 INFO L226 Difference]: Without dead ends: 8562 [2025-03-04 11:15:53,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 503 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:15:53,793 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 31 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:53,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 661 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:15:53,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2025-03-04 11:15:54,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 8560. [2025-03-04 11:15:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 7983 states have (on average 1.0409620443442316) internal successors, (8310), 7985 states have internal predecessors, (8310), 572 states have call successors, (572), 2 states have call predecessors, (572), 2 states have return successors, (572), 572 states have call predecessors, (572), 572 states have call successors, (572) [2025-03-04 11:15:54,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 9454 transitions. [2025-03-04 11:15:54,158 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 9454 transitions. Word has length 262 [2025-03-04 11:15:54,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:54,159 INFO L471 AbstractCegarLoop]: Abstraction has 8560 states and 9454 transitions. [2025-03-04 11:15:54,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2025-03-04 11:15:54,159 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 9454 transitions. [2025-03-04 11:15:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2025-03-04 11:15:54,161 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:54,161 INFO L218 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:54,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-03-04 11:15:54,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:54,362 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:54,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:54,362 INFO L85 PathProgramCache]: Analyzing trace with hash 693944051, now seen corresponding path program 14 times [2025-03-04 11:15:54,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:54,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979540177] [2025-03-04 11:15:54,362 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:54,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:54,368 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 281 statements into 2 equivalence classes. [2025-03-04 11:15:54,375 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 281 of 281 statements. [2025-03-04 11:15:54,375 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:54,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:54,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 677 proven. 427 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2025-03-04 11:15:54,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:54,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979540177] [2025-03-04 11:15:54,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979540177] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:54,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506935996] [2025-03-04 11:15:54,496 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:54,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:54,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:54,497 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:54,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-04 11:15:54,523 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 281 statements into 2 equivalence classes. [2025-03-04 11:15:54,557 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 281 of 281 statements. [2025-03-04 11:15:54,557 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:54,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:54,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:54,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 956 proven. 308 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2025-03-04 11:15:54,748 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 638 proven. 466 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2025-03-04 11:15:54,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506935996] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:54,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:54,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2025-03-04 11:15:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770033044] [2025-03-04 11:15:54,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:54,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:15:54,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:54,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:15:54,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:15:54,949 INFO L87 Difference]: Start difference. First operand 8560 states and 9454 transitions. Second operand has 16 states, 16 states have (on average 14.1875) internal successors, (227), 16 states have internal predecessors, (227), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2025-03-04 11:15:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:55,397 INFO L93 Difference]: Finished difference Result 10159 states and 11204 transitions. [2025-03-04 11:15:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:15:55,398 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.1875) internal successors, (227), 16 states have internal predecessors, (227), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 281 [2025-03-04 11:15:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:55,408 INFO L225 Difference]: With dead ends: 10159 [2025-03-04 11:15:55,408 INFO L226 Difference]: Without dead ends: 8930 [2025-03-04 11:15:55,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 549 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2025-03-04 11:15:55,411 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 13 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:55,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 195 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:55,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8930 states. [2025-03-04 11:15:55,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8930 to 8524. [2025-03-04 11:15:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8524 states, 7949 states have (on average 1.0408856459932068) internal successors, (8274), 7951 states have internal predecessors, (8274), 570 states have call successors, (570), 2 states have call predecessors, (570), 2 states have return successors, (570), 570 states have call predecessors, (570), 570 states have call successors, (570) [2025-03-04 11:15:55,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8524 states to 8524 states and 9414 transitions. [2025-03-04 11:15:55,737 INFO L78 Accepts]: Start accepts. Automaton has 8524 states and 9414 transitions. Word has length 281 [2025-03-04 11:15:55,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:55,737 INFO L471 AbstractCegarLoop]: Abstraction has 8524 states and 9414 transitions. [2025-03-04 11:15:55,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.1875) internal successors, (227), 16 states have internal predecessors, (227), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2025-03-04 11:15:55,737 INFO L276 IsEmpty]: Start isEmpty. Operand 8524 states and 9414 transitions. [2025-03-04 11:15:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2025-03-04 11:15:55,740 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:55,740 INFO L218 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:55,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2025-03-04 11:15:55,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-04 11:15:55,944 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:55,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:55,944 INFO L85 PathProgramCache]: Analyzing trace with hash -908179851, now seen corresponding path program 15 times [2025-03-04 11:15:55,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:55,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536835652] [2025-03-04 11:15:55,944 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:55,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:55,950 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 281 statements into 15 equivalence classes. [2025-03-04 11:15:55,973 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 281 of 281 statements. [2025-03-04 11:15:55,973 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:55,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:55,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548860745] [2025-03-04 11:15:55,974 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:55,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:55,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:55,978 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:55,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-04 11:15:56,007 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 281 statements into 15 equivalence classes. [2025-03-04 11:15:56,037 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 167 of 281 statements. [2025-03-04 11:15:56,037 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-04 11:15:56,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:56,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:15:56,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:56,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 1006 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2025-03-04 11:15:56,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:56,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:56,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536835652] [2025-03-04 11:15:56,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:56,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548860745] [2025-03-04 11:15:56,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548860745] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:56,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:56,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 11:15:56,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778483223] [2025-03-04 11:15:56,461 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:56,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:15:56,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:56,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:15:56,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:15:56,462 INFO L87 Difference]: Start difference. First operand 8524 states and 9414 transitions. Second operand has 12 states, 11 states have (on average 11.636363636363637) internal successors, (128), 12 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:56,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:56,929 INFO L93 Difference]: Finished difference Result 9024 states and 9955 transitions. [2025-03-04 11:15:56,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 11:15:56,930 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.636363636363637) internal successors, (128), 12 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 281 [2025-03-04 11:15:56,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:56,940 INFO L225 Difference]: With dead ends: 9024 [2025-03-04 11:15:56,941 INFO L226 Difference]: Without dead ends: 9023 [2025-03-04 11:15:56,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:15:56,943 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 19 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:56,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 224 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:56,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9023 states. [2025-03-04 11:15:57,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9023 to 8530. [2025-03-04 11:15:57,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8530 states, 7955 states have (on average 1.0408548082966687) internal successors, (8280), 7957 states have internal predecessors, (8280), 570 states have call successors, (570), 2 states have call predecessors, (570), 2 states have return successors, (570), 570 states have call predecessors, (570), 570 states have call successors, (570) [2025-03-04 11:15:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8530 states to 8530 states and 9420 transitions. [2025-03-04 11:15:57,406 INFO L78 Accepts]: Start accepts. Automaton has 8530 states and 9420 transitions. Word has length 281 [2025-03-04 11:15:57,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:57,406 INFO L471 AbstractCegarLoop]: Abstraction has 8530 states and 9420 transitions. [2025-03-04 11:15:57,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.636363636363637) internal successors, (128), 12 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 8530 states and 9420 transitions. [2025-03-04 11:15:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2025-03-04 11:15:57,409 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:57,409 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:57,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2025-03-04 11:15:57,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-04 11:15:57,610 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:57,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:57,611 INFO L85 PathProgramCache]: Analyzing trace with hash 37490475, now seen corresponding path program 3 times [2025-03-04 11:15:57,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:57,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111867740] [2025-03-04 11:15:57,611 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:57,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:57,619 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 293 statements into 15 equivalence classes. [2025-03-04 11:15:57,662 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 293 of 293 statements. [2025-03-04 11:15:57,662 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:57,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:57,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-03-04 11:15:57,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:57,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111867740] [2025-03-04 11:15:57,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111867740] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:57,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667393912] [2025-03-04 11:15:57,907 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:57,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:57,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:57,908 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:57,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-04 11:15:57,932 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 293 statements into 15 equivalence classes. [2025-03-04 11:15:57,970 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 293 of 293 statements. [2025-03-04 11:15:57,971 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:57,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:57,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:15:57,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-03-04 11:15:58,134 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-03-04 11:15:58,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667393912] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:58,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:58,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2025-03-04 11:15:58,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473694656] [2025-03-04 11:15:58,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:58,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-03-04 11:15:58,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:58,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-03-04 11:15:58,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:15:58,527 INFO L87 Difference]: Start difference. First operand 8530 states and 9420 transitions. Second operand has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2025-03-04 11:15:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:59,232 INFO L93 Difference]: Finished difference Result 13331 states and 15164 transitions. [2025-03-04 11:15:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-04 11:15:59,232 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) Word has length 293 [2025-03-04 11:15:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:59,248 INFO L225 Difference]: With dead ends: 13331 [2025-03-04 11:15:59,248 INFO L226 Difference]: Without dead ends: 13330 [2025-03-04 11:15:59,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:15:59,252 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 23 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:59,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 267 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:59,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13330 states. [2025-03-04 11:15:59,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13330 to 13330. [2025-03-04 11:15:59,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 12435 states have (on average 1.050583031765179) internal successors, (13064), 12437 states have internal predecessors, (13064), 890 states have call successors, (890), 2 states have call predecessors, (890), 2 states have return successors, (890), 890 states have call predecessors, (890), 890 states have call successors, (890) [2025-03-04 11:15:59,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 14844 transitions. [2025-03-04 11:15:59,799 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 14844 transitions. Word has length 293 [2025-03-04 11:15:59,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:59,800 INFO L471 AbstractCegarLoop]: Abstraction has 13330 states and 14844 transitions. [2025-03-04 11:15:59,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2025-03-04 11:15:59,800 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 14844 transitions. [2025-03-04 11:15:59,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2025-03-04 11:15:59,802 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:59,802 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:59,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2025-03-04 11:16:00,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-04 11:16:00,003 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:16:00,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:16:00,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1474454963, now seen corresponding path program 16 times [2025-03-04 11:16:00,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:16:00,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515319986] [2025-03-04 11:16:00,004 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:16:00,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:16:00,009 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 300 statements into 2 equivalence classes. [2025-03-04 11:16:00,024 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:16:00,024 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:16:00,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:16:00,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050323681] [2025-03-04 11:16:00,025 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:16:00,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:16:00,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:16:00,028 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:16:00,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-04 11:16:00,055 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 300 statements into 2 equivalence classes. [2025-03-04 11:16:00,109 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:16:00,109 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:16:00,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:16:00,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 119 conjuncts are in the unsatisfiable core [2025-03-04 11:16:00,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:16:01,630 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:16:02,165 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-04 11:16:02,690 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-04 11:16:03,500 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2025-03-04 11:16:04,041 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2025-03-04 11:16:04,554 WARN L672 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2025-03-04 11:16:05,387 WARN L672 sPolynomialRelations]: Constructing 4096(two to the power of 12 dual juncts. [2025-03-04 11:16:06,188 WARN L672 sPolynomialRelations]: Constructing 8192(two to the power of 13 dual juncts. [2025-03-04 11:16:07,004 WARN L672 sPolynomialRelations]: Constructing 16384(two to the power of 14 dual juncts. [2025-03-04 11:16:07,357 WARN L672 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2025-03-04 11:16:08,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 108 proven. 1459 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2025-03-04 11:16:08,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:16:08,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:16:08,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515319986] [2025-03-04 11:16:08,487 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:16:08,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050323681] [2025-03-04 11:16:08,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050323681] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:16:08,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:16:08,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2025-03-04 11:16:08,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846424121] [2025-03-04 11:16:08,488 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:16:08,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2025-03-04 11:16:08,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:16:08,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2025-03-04 11:16:08,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=3629, Unknown=0, NotChecked=0, Total=4032 [2025-03-04 11:16:08,489 INFO L87 Difference]: Start difference. First operand 13330 states and 14844 transitions. Second operand has 60 states, 57 states have (on average 3.9298245614035086) internal successors, (224), 52 states have internal predecessors, (224), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:16:13,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:16:13,798 INFO L93 Difference]: Finished difference Result 14181 states and 15749 transitions. [2025-03-04 11:16:13,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-03-04 11:16:13,798 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 57 states have (on average 3.9298245614035086) internal successors, (224), 52 states have internal predecessors, (224), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 300 [2025-03-04 11:16:13,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:16:13,816 INFO L225 Difference]: With dead ends: 14181 [2025-03-04 11:16:13,816 INFO L226 Difference]: Without dead ends: 13756 [2025-03-04 11:16:13,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1841 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=691, Invalid=6449, Unknown=0, NotChecked=0, Total=7140 [2025-03-04 11:16:13,822 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 141 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 8458 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 8470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 8458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:16:13,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 720 Invalid, 8470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 8458 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-03-04 11:16:13,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13756 states. [2025-03-04 11:16:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13756 to 13330. [2025-03-04 11:16:14,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 12435 states have (on average 1.050422195416164) internal successors, (13062), 12437 states have internal predecessors, (13062), 890 states have call successors, (890), 2 states have call predecessors, (890), 2 states have return successors, (890), 890 states have call predecessors, (890), 890 states have call successors, (890) [2025-03-04 11:16:14,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 14842 transitions. [2025-03-04 11:16:14,385 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 14842 transitions. Word has length 300 [2025-03-04 11:16:14,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:16:14,386 INFO L471 AbstractCegarLoop]: Abstraction has 13330 states and 14842 transitions. [2025-03-04 11:16:14,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 57 states have (on average 3.9298245614035086) internal successors, (224), 52 states have internal predecessors, (224), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:16:14,386 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 14842 transitions. [2025-03-04 11:16:14,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2025-03-04 11:16:14,388 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:16:14,388 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:16:14,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2025-03-04 11:16:14,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-04 11:16:14,589 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:16:14,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:16:14,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1815263251, now seen corresponding path program 17 times [2025-03-04 11:16:14,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:16:14,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351839269] [2025-03-04 11:16:14,589 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:16:14,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:16:14,595 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 300 statements into 16 equivalence classes. [2025-03-04 11:16:14,609 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:16:14,609 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-04 11:16:14,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:16:14,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373409551] [2025-03-04 11:16:14,610 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:16:14,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:16:14,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:16:14,612 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:16:14,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-04 11:16:14,641 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 300 statements into 16 equivalence classes. [2025-03-04 11:16:14,704 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:16:14,704 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-04 11:16:14,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:16:14,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 75 conjuncts are in the unsatisfiable core [2025-03-04 11:16:14,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:16:17,744 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:16:18,422 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-04 11:16:19,173 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-04 11:16:20,069 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2025-03-04 11:16:20,128 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2025-03-04 11:16:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1885 backedges. 42 proven. 1500 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2025-03-04 11:16:20,635 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:16:20,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:16:20,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351839269] [2025-03-04 11:16:20,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:16:20,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373409551] [2025-03-04 11:16:20,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373409551] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:16:20,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:16:20,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2025-03-04 11:16:20,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922470817] [2025-03-04 11:16:20,929 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:16:20,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-03-04 11:16:20,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:16:20,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-03-04 11:16:20,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=2874, Unknown=0, NotChecked=0, Total=3192 [2025-03-04 11:16:20,931 INFO L87 Difference]: Start difference. First operand 13330 states and 14842 transitions. Second operand has 53 states, 51 states have (on average 4.450980392156863) internal successors, (227), 50 states have internal predecessors, (227), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17)