./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c39f3d25be406fa166da46a61b4a36c0a90262202dfdee83ae8e5211f182a6f7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:24:03,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:24:03,111 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:24:03,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:24:03,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:24:03,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:24:03,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:24:03,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:24:03,149 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:24:03,149 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:24:03,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:24:03,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:24:03,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:24:03,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:24:03,152 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:24:03,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:24:03,152 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:24:03,153 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:24:03,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:24:03,153 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:24:03,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:24:03,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:24:03,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:24:03,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:24:03,159 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:24:03,160 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:24:03,160 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:24:03,160 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:24:03,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:24:03,161 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:24:03,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:24:03,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:24:03,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:24:03,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:24:03,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:24:03,167 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:24:03,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:24:03,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:24:03,167 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:24:03,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:24:03,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:24:03,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:24:03,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:24:03,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:24:03,169 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c39f3d25be406fa166da46a61b4a36c0a90262202dfdee83ae8e5211f182a6f7 [2024-10-24 20:24:03,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:24:03,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:24:03,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:24:03,442 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:24:03,443 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:24:03,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c [2024-10-24 20:24:04,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:24:05,072 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:24:05,073 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound100.c [2024-10-24 20:24:05,080 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca1d0d3c3/1f3f34939de34cd19b2c42129ed7f579/FLAGe2c6b7979 [2024-10-24 20:24:05,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca1d0d3c3/1f3f34939de34cd19b2c42129ed7f579 [2024-10-24 20:24:05,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:24:05,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:24:05,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:24:05,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:24:05,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:24:05,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1d6707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05, skipping insertion in model container [2024-10-24 20:24:05,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:24:05,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:24:05,699 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:24:05,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:24:05,729 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:24:05,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05 WrapperNode [2024-10-24 20:24:05,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:24:05,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:24:05,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:24:05,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:24:05,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,762 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2024-10-24 20:24:05,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:24:05,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:24:05,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:24:05,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:24:05,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,806 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-10-24 20:24:05,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,812 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,823 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:24:05,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:24:05,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:24:05,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:24:05,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (1/1) ... [2024-10-24 20:24:05,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:24:05,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:05,881 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) [2024-10-24 20:24:05,888 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 [2024-10-24 20:24:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:24:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:24:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 20:24:05,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:24:05,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:24:05,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:24:05,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:24:06,005 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:24:06,007 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:24:06,388 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-10-24 20:24:06,388 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:24:06,418 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:24:06,419 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 20:24:06,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:24:06 BoogieIcfgContainer [2024-10-24 20:24:06,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:24:06,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:24:06,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:24:06,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:24:06,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:24:05" (1/3) ... [2024-10-24 20:24:06,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222cf8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:24:06, skipping insertion in model container [2024-10-24 20:24:06,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:05" (2/3) ... [2024-10-24 20:24:06,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222cf8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:24:06, skipping insertion in model container [2024-10-24 20:24:06,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:24:06" (3/3) ... [2024-10-24 20:24:06,431 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_valuebound100.c [2024-10-24 20:24:06,448 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:24:06,448 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-10-24 20:24:06,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:24:06,504 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;@25c28fc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:24:06,504 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-24 20:24:06,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 60 states have internal predecessors, (69), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-24 20:24:06,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 20:24:06,517 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:06,518 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 20:24:06,518 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:06,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:06,523 INFO L85 PathProgramCache]: Analyzing trace with hash 491003590, now seen corresponding path program 1 times [2024-10-24 20:24:06,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:06,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378971893] [2024-10-24 20:24:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:06,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:24:06,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:06,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378971893] [2024-10-24 20:24:06,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378971893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:06,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:06,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:24:06,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168618918] [2024-10-24 20:24:06,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:06,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 20:24:06,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:06,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 20:24:06,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:24:06,716 INFO L87 Difference]: Start difference. First operand has 69 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 60 states have internal predecessors, (69), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:24:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:06,746 INFO L93 Difference]: Finished difference Result 136 states and 170 transitions. [2024-10-24 20:24:06,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 20:24:06,749 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-24 20:24:06,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:06,755 INFO L225 Difference]: With dead ends: 136 [2024-10-24 20:24:06,756 INFO L226 Difference]: Without dead ends: 65 [2024-10-24 20:24:06,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:24:06,762 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:06,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:24:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-24 20:24:06,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-10-24 20:24:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 58 states have internal predecessors, (61), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 20:24:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2024-10-24 20:24:06,804 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 6 [2024-10-24 20:24:06,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:06,804 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2024-10-24 20:24:06,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:24:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2024-10-24 20:24:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 20:24:06,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:06,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:06,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:24:06,808 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:06,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:06,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1989668520, now seen corresponding path program 1 times [2024-10-24 20:24:06,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:06,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503139708] [2024-10-24 20:24:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:06,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:06,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481561566] [2024-10-24 20:24:06,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:06,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:06,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:06,857 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) [2024-10-24 20:24:06,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 20:24:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:06,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:24:06,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:24:07,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:07,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:07,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503139708] [2024-10-24 20:24:07,082 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:07,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481561566] [2024-10-24 20:24:07,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481561566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:07,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:07,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:24:07,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453964467] [2024-10-24 20:24:07,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:07,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:24:07,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:07,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:24:07,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:24:07,090 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:24:07,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:07,215 INFO L93 Difference]: Finished difference Result 137 states and 158 transitions. [2024-10-24 20:24:07,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:24:07,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-10-24 20:24:07,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:07,217 INFO L225 Difference]: With dead ends: 137 [2024-10-24 20:24:07,218 INFO L226 Difference]: Without dead ends: 88 [2024-10-24 20:24:07,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:24:07,219 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 16 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:07,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 94 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:07,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-24 20:24:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2024-10-24 20:24:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 74 states have internal predecessors, (84), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:24:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 104 transitions. [2024-10-24 20:24:07,240 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 104 transitions. Word has length 15 [2024-10-24 20:24:07,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:07,242 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 104 transitions. [2024-10-24 20:24:07,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:24:07,242 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 104 transitions. [2024-10-24 20:24:07,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-24 20:24:07,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:07,244 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:07,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 20:24:07,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:07,449 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:07,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:07,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1953746883, now seen corresponding path program 1 times [2024-10-24 20:24:07,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:07,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901812182] [2024-10-24 20:24:07,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:07,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:24:07,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901812182] [2024-10-24 20:24:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901812182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:07,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:07,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:24:07,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301273579] [2024-10-24 20:24:07,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:07,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:24:07,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:07,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:24:07,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:24:07,652 INFO L87 Difference]: Start difference. First operand 86 states and 104 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:24:07,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:07,714 INFO L93 Difference]: Finished difference Result 96 states and 111 transitions. [2024-10-24 20:24:07,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:24:07,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-10-24 20:24:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:07,716 INFO L225 Difference]: With dead ends: 96 [2024-10-24 20:24:07,716 INFO L226 Difference]: Without dead ends: 94 [2024-10-24 20:24:07,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:24:07,717 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 17 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:07,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 105 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:07,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-24 20:24:07,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 86. [2024-10-24 20:24:07,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 51 states have (on average 1.607843137254902) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:24:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2024-10-24 20:24:07,730 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 23 [2024-10-24 20:24:07,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:07,730 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2024-10-24 20:24:07,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:24:07,731 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2024-10-24 20:24:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-24 20:24:07,731 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:07,731 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:07,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 20:24:07,732 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:07,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:07,734 INFO L85 PathProgramCache]: Analyzing trace with hash -436612543, now seen corresponding path program 1 times [2024-10-24 20:24:07,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:07,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904357320] [2024-10-24 20:24:07,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:07,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:07,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182669834] [2024-10-24 20:24:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:07,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:07,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:07,772 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) [2024-10-24 20:24:07,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 20:24:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 20:24:07,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:24:07,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:07,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:07,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904357320] [2024-10-24 20:24:07,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:07,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182669834] [2024-10-24 20:24:07,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182669834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:07,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:07,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:24:07,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123539102] [2024-10-24 20:24:07,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:07,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:24:07,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:07,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:24:07,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:24:07,875 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:24:07,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:07,982 INFO L93 Difference]: Finished difference Result 121 states and 146 transitions. [2024-10-24 20:24:07,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:24:07,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-10-24 20:24:07,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:07,985 INFO L225 Difference]: With dead ends: 121 [2024-10-24 20:24:07,985 INFO L226 Difference]: Without dead ends: 117 [2024-10-24 20:24:07,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:24:07,987 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 39 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:07,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 87 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:07,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-10-24 20:24:08,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103. [2024-10-24 20:24:08,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.5909090909090908) internal successors, (105), 89 states have internal predecessors, (105), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 20:24:08,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 129 transitions. [2024-10-24 20:24:08,010 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 129 transitions. Word has length 24 [2024-10-24 20:24:08,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:08,011 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 129 transitions. [2024-10-24 20:24:08,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:24:08,011 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 129 transitions. [2024-10-24 20:24:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 20:24:08,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:08,012 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:08,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 20:24:08,212 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,SelfDestructingSolverStorable3 [2024-10-24 20:24:08,213 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:08,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:08,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1322143843, now seen corresponding path program 1 times [2024-10-24 20:24:08,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:08,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248026951] [2024-10-24 20:24:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:08,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:08,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:08,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:08,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:24:08,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:08,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248026951] [2024-10-24 20:24:08,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248026951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:08,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:08,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:24:08,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481966488] [2024-10-24 20:24:08,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:08,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:24:08,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:08,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:24:08,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:08,466 INFO L87 Difference]: Start difference. First operand 103 states and 129 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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) [2024-10-24 20:24:08,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:08,929 INFO L93 Difference]: Finished difference Result 119 states and 143 transitions. [2024-10-24 20:24:08,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:24:08,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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 26 [2024-10-24 20:24:08,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:08,931 INFO L225 Difference]: With dead ends: 119 [2024-10-24 20:24:08,934 INFO L226 Difference]: Without dead ends: 118 [2024-10-24 20:24:08,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:24:08,935 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 299 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:08,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 85 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:24:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-24 20:24:08,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 107. [2024-10-24 20:24:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.5571428571428572) internal successors, (109), 93 states have internal predecessors, (109), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 20:24:08,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 133 transitions. [2024-10-24 20:24:08,961 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 133 transitions. Word has length 26 [2024-10-24 20:24:08,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:08,962 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 133 transitions. [2024-10-24 20:24:08,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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) [2024-10-24 20:24:08,962 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 133 transitions. [2024-10-24 20:24:08,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-24 20:24:08,963 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:08,963 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:08,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 20:24:08,963 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:08,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:08,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1963213740, now seen corresponding path program 1 times [2024-10-24 20:24:08,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:08,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609269193] [2024-10-24 20:24:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:08,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,102 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:24:09,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:09,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609269193] [2024-10-24 20:24:09,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609269193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:09,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:09,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:24:09,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713493799] [2024-10-24 20:24:09,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:09,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:09,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:09,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:09,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:09,106 INFO L87 Difference]: Start difference. First operand 107 states and 133 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:24:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:09,438 INFO L93 Difference]: Finished difference Result 119 states and 146 transitions. [2024-10-24 20:24:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:24:09,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-10-24 20:24:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:09,443 INFO L225 Difference]: With dead ends: 119 [2024-10-24 20:24:09,443 INFO L226 Difference]: Without dead ends: 118 [2024-10-24 20:24:09,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:09,444 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 51 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:09,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 154 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:24:09,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-24 20:24:09,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2024-10-24 20:24:09,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 76 states have (on average 1.5) internal successors, (114), 99 states have internal predecessors, (114), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 20:24:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 138 transitions. [2024-10-24 20:24:09,464 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 138 transitions. Word has length 27 [2024-10-24 20:24:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:09,464 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 138 transitions. [2024-10-24 20:24:09,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:24:09,464 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 138 transitions. [2024-10-24 20:24:09,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-24 20:24:09,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:09,465 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:09,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 20:24:09,466 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:09,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:09,466 INFO L85 PathProgramCache]: Analyzing trace with hash -931997051, now seen corresponding path program 1 times [2024-10-24 20:24:09,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:09,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125045759] [2024-10-24 20:24:09,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:09,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:09,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842924103] [2024-10-24 20:24:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:09,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:09,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:09,485 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) [2024-10-24 20:24:09,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 20:24:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:24:09,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:24:09,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:09,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:09,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125045759] [2024-10-24 20:24:09,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:09,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842924103] [2024-10-24 20:24:09,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842924103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:09,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:09,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:24:09,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700897373] [2024-10-24 20:24:09,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:09,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:24:09,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:09,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:24:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:24:09,713 INFO L87 Difference]: Start difference. First operand 113 states and 138 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:09,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:09,823 INFO L93 Difference]: Finished difference Result 124 states and 153 transitions. [2024-10-24 20:24:09,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:09,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-10-24 20:24:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:09,825 INFO L225 Difference]: With dead ends: 124 [2024-10-24 20:24:09,825 INFO L226 Difference]: Without dead ends: 114 [2024-10-24 20:24:09,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:24:09,826 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 47 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:09,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 89 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:09,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-24 20:24:09,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-10-24 20:24:09,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 79 states have (on average 1.4177215189873418) internal successors, (112), 98 states have internal predecessors, (112), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 20:24:09,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2024-10-24 20:24:09,840 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 38 [2024-10-24 20:24:09,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:09,841 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2024-10-24 20:24:09,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:09,841 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2024-10-24 20:24:09,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-24 20:24:09,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:09,842 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:09,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 20:24:10,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:10,047 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:10,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:10,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1172862545, now seen corresponding path program 1 times [2024-10-24 20:24:10,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:10,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733397283] [2024-10-24 20:24:10,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:10,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:10,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1533121534] [2024-10-24 20:24:10,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:10,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:10,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:10,071 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) [2024-10-24 20:24:10,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 20:24:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:24:10,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:10,226 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:24:10,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:10,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:10,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733397283] [2024-10-24 20:24:10,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:10,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533121534] [2024-10-24 20:24:10,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533121534] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:10,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:10,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-10-24 20:24:10,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932123073] [2024-10-24 20:24:10,654 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:10,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:24:10,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:10,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:24:10,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:24:10,656 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:10,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:10,818 INFO L93 Difference]: Finished difference Result 190 states and 245 transitions. [2024-10-24 20:24:10,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:10,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2024-10-24 20:24:10,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:10,823 INFO L225 Difference]: With dead ends: 190 [2024-10-24 20:24:10,823 INFO L226 Difference]: Without dead ends: 186 [2024-10-24 20:24:10,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:24:10,824 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 43 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:10,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 121 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-10-24 20:24:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 174. [2024-10-24 20:24:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 130 states have (on average 1.4230769230769231) internal successors, (185), 149 states have internal predecessors, (185), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 20:24:10,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 231 transitions. [2024-10-24 20:24:10,856 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 231 transitions. Word has length 39 [2024-10-24 20:24:10,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:10,857 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 231 transitions. [2024-10-24 20:24:10,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:10,857 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 231 transitions. [2024-10-24 20:24:10,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-24 20:24:10,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:10,860 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:10,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:11,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:11,061 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:11,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:11,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1723238283, now seen corresponding path program 1 times [2024-10-24 20:24:11,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:11,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831808270] [2024-10-24 20:24:11,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:11,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 20:24:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,239 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:24:11,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:11,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831808270] [2024-10-24 20:24:11,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831808270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:11,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:11,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:24:11,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931396749] [2024-10-24 20:24:11,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:11,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:24:11,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:11,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:24:11,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:11,242 INFO L87 Difference]: Start difference. First operand 174 states and 231 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:11,502 INFO L93 Difference]: Finished difference Result 186 states and 243 transitions. [2024-10-24 20:24:11,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:24:11,502 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-10-24 20:24:11,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:11,504 INFO L225 Difference]: With dead ends: 186 [2024-10-24 20:24:11,504 INFO L226 Difference]: Without dead ends: 185 [2024-10-24 20:24:11,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:24:11,505 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 195 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:11,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 113 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:24:11,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-24 20:24:11,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 175. [2024-10-24 20:24:11,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 131 states have (on average 1.4198473282442747) internal successors, (186), 150 states have internal predecessors, (186), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 20:24:11,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 232 transitions. [2024-10-24 20:24:11,522 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 232 transitions. Word has length 43 [2024-10-24 20:24:11,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:11,522 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 232 transitions. [2024-10-24 20:24:11,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:11,522 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 232 transitions. [2024-10-24 20:24:11,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-24 20:24:11,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:11,524 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:11,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 20:24:11,524 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:11,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:11,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1880779090, now seen corresponding path program 1 times [2024-10-24 20:24:11,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:11,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095424484] [2024-10-24 20:24:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:11,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 20:24:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,636 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:24:11,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095424484] [2024-10-24 20:24:11,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095424484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:11,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:11,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:24:11,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025144665] [2024-10-24 20:24:11,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:11,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:11,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:11,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:11,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:11,640 INFO L87 Difference]: Start difference. First operand 175 states and 232 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:11,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:11,778 INFO L93 Difference]: Finished difference Result 180 states and 236 transitions. [2024-10-24 20:24:11,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:24:11,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-10-24 20:24:11,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:11,783 INFO L225 Difference]: With dead ends: 180 [2024-10-24 20:24:11,783 INFO L226 Difference]: Without dead ends: 165 [2024-10-24 20:24:11,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:24:11,784 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 4 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:11,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 159 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:11,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-10-24 20:24:11,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-10-24 20:24:11,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 123 states have (on average 1.4390243902439024) internal successors, (177), 142 states have internal predecessors, (177), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 20:24:11,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 219 transitions. [2024-10-24 20:24:11,798 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 219 transitions. Word has length 44 [2024-10-24 20:24:11,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:11,799 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 219 transitions. [2024-10-24 20:24:11,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 219 transitions. [2024-10-24 20:24:11,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-24 20:24:11,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:11,800 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:11,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 20:24:11,800 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:11,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:11,801 INFO L85 PathProgramCache]: Analyzing trace with hash 878702362, now seen corresponding path program 1 times [2024-10-24 20:24:11,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:11,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444938552] [2024-10-24 20:24:11,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:11,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,880 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:11,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:11,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444938552] [2024-10-24 20:24:11,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444938552] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:11,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668133060] [2024-10-24 20:24:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:11,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:11,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:11,882 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) [2024-10-24 20:24:11,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 20:24:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:11,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:24:11,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:11,976 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:11,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668133060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:11,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:11,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-24 20:24:11,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943276517] [2024-10-24 20:24:11,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:11,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:24:11,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:11,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:24:11,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:11,978 INFO L87 Difference]: Start difference. First operand 165 states and 219 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:24:12,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:12,059 INFO L93 Difference]: Finished difference Result 249 states and 340 transitions. [2024-10-24 20:24:12,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:12,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2024-10-24 20:24:12,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:12,061 INFO L225 Difference]: With dead ends: 249 [2024-10-24 20:24:12,061 INFO L226 Difference]: Without dead ends: 247 [2024-10-24 20:24:12,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:12,062 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 58 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:12,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 112 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:12,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-10-24 20:24:12,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 226. [2024-10-24 20:24:12,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 177 states have (on average 1.4463276836158192) internal successors, (256), 195 states have internal predecessors, (256), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-24 20:24:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 314 transitions. [2024-10-24 20:24:12,079 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 314 transitions. Word has length 46 [2024-10-24 20:24:12,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:12,079 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 314 transitions. [2024-10-24 20:24:12,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:24:12,080 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 314 transitions. [2024-10-24 20:24:12,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-24 20:24:12,080 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:12,080 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:12,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 20:24:12,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 20:24:12,281 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:12,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:12,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1469969510, now seen corresponding path program 1 times [2024-10-24 20:24:12,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:12,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399835777] [2024-10-24 20:24:12,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:12,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:12,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:12,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:12,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:12,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:12,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:12,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:12,366 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:12,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:12,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399835777] [2024-10-24 20:24:12,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399835777] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:12,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284324772] [2024-10-24 20:24:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:12,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:12,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:12,369 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) [2024-10-24 20:24:12,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 20:24:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:12,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:24:12,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:12,449 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:12,449 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:12,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284324772] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:12,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:12,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-24 20:24:12,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138156716] [2024-10-24 20:24:12,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:12,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:24:12,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:12,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:24:12,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:12,520 INFO L87 Difference]: Start difference. First operand 226 states and 314 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 20:24:12,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:12,689 INFO L93 Difference]: Finished difference Result 374 states and 513 transitions. [2024-10-24 20:24:12,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:24:12,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 47 [2024-10-24 20:24:12,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:12,692 INFO L225 Difference]: With dead ends: 374 [2024-10-24 20:24:12,692 INFO L226 Difference]: Without dead ends: 372 [2024-10-24 20:24:12,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:12,693 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 133 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:12,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 191 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:12,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-10-24 20:24:12,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 326. [2024-10-24 20:24:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 261 states have (on average 1.4444444444444444) internal successors, (377), 279 states have internal predecessors, (377), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 20:24:12,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 467 transitions. [2024-10-24 20:24:12,723 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 467 transitions. Word has length 47 [2024-10-24 20:24:12,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:12,724 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 467 transitions. [2024-10-24 20:24:12,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 20:24:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 467 transitions. [2024-10-24 20:24:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-24 20:24:12,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:12,727 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:12,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 20:24:12,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:12,928 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:12,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:12,928 INFO L85 PathProgramCache]: Analyzing trace with hash 334152881, now seen corresponding path program 1 times [2024-10-24 20:24:12,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:12,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181368450] [2024-10-24 20:24:12,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:12,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:12,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69758716] [2024-10-24 20:24:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:12,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:12,941 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) [2024-10-24 20:24:12,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 20:24:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:12,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:24:12,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:13,076 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-24 20:24:13,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:13,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:13,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181368450] [2024-10-24 20:24:13,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:13,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69758716] [2024-10-24 20:24:13,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69758716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:13,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:13,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:24:13,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880655298] [2024-10-24 20:24:13,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:13,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:24:13,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:13,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:24:13,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:24:13,079 INFO L87 Difference]: Start difference. First operand 326 states and 467 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:24:13,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:13,164 INFO L93 Difference]: Finished difference Result 345 states and 492 transitions. [2024-10-24 20:24:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:13,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2024-10-24 20:24:13,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:13,168 INFO L225 Difference]: With dead ends: 345 [2024-10-24 20:24:13,168 INFO L226 Difference]: Without dead ends: 339 [2024-10-24 20:24:13,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:13,169 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 77 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 [2024-10-24 20:24:13,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 77 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:13,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-10-24 20:24:13,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 323. [2024-10-24 20:24:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 258 states have (on average 1.4147286821705427) internal successors, (365), 276 states have internal predecessors, (365), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 20:24:13,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 455 transitions. [2024-10-24 20:24:13,199 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 455 transitions. Word has length 50 [2024-10-24 20:24:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:13,200 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 455 transitions. [2024-10-24 20:24:13,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:24:13,200 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 455 transitions. [2024-10-24 20:24:13,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 20:24:13,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:13,202 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-24 20:24:13,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 20:24:13,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:13,403 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:13,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1641751762, now seen corresponding path program 2 times [2024-10-24 20:24:13,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:13,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286291580] [2024-10-24 20:24:13,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:13,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:13,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1664722860] [2024-10-24 20:24:13,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:24:13,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:13,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:13,417 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) [2024-10-24 20:24:13,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 20:24:13,470 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:24:13,471 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:13,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:24:13,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:13,593 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:13,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:13,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:13,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286291580] [2024-10-24 20:24:13,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:13,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664722860] [2024-10-24 20:24:13,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664722860] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:13,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:13,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-24 20:24:13,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600146582] [2024-10-24 20:24:13,903 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:13,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:13,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:13,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:13,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:13,904 INFO L87 Difference]: Start difference. First operand 323 states and 455 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 20:24:14,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:14,078 INFO L93 Difference]: Finished difference Result 418 states and 586 transitions. [2024-10-24 20:24:14,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:24:14,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-10-24 20:24:14,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:14,081 INFO L225 Difference]: With dead ends: 418 [2024-10-24 20:24:14,081 INFO L226 Difference]: Without dead ends: 414 [2024-10-24 20:24:14,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:14,082 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 86 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:14,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 112 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:14,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-10-24 20:24:14,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 323. [2024-10-24 20:24:14,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 258 states have (on average 1.4069767441860466) internal successors, (363), 276 states have internal predecessors, (363), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 20:24:14,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 453 transitions. [2024-10-24 20:24:14,119 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 453 transitions. Word has length 62 [2024-10-24 20:24:14,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:14,119 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 453 transitions. [2024-10-24 20:24:14,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 20:24:14,119 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 453 transitions. [2024-10-24 20:24:14,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 20:24:14,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:14,120 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:14,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:14,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-24 20:24:14,323 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:14,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:14,324 INFO L85 PathProgramCache]: Analyzing trace with hash 968937877, now seen corresponding path program 1 times [2024-10-24 20:24:14,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:14,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739845887] [2024-10-24 20:24:14,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:14,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-24 20:24:14,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:14,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739845887] [2024-10-24 20:24:14,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739845887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:14,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:14,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:24:14,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8207392] [2024-10-24 20:24:14,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:14,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:24:14,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:14,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:24:14,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:24:14,383 INFO L87 Difference]: Start difference. First operand 323 states and 453 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:14,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:14,465 INFO L93 Difference]: Finished difference Result 323 states and 453 transitions. [2024-10-24 20:24:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:24:14,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2024-10-24 20:24:14,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:14,467 INFO L225 Difference]: With dead ends: 323 [2024-10-24 20:24:14,467 INFO L226 Difference]: Without dead ends: 322 [2024-10-24 20:24:14,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:24:14,468 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:14,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 96 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:14,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-24 20:24:14,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-10-24 20:24:14,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 258 states have (on average 1.3837209302325582) internal successors, (357), 275 states have internal predecessors, (357), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 20:24:14,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 447 transitions. [2024-10-24 20:24:14,492 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 447 transitions. Word has length 69 [2024-10-24 20:24:14,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:14,492 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 447 transitions. [2024-10-24 20:24:14,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:14,492 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 447 transitions. [2024-10-24 20:24:14,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 20:24:14,493 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:14,493 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:14,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 20:24:14,494 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:14,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:14,494 INFO L85 PathProgramCache]: Analyzing trace with hash -27696772, now seen corresponding path program 1 times [2024-10-24 20:24:14,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:14,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530546448] [2024-10-24 20:24:14,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:14,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,652 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:14,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:14,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530546448] [2024-10-24 20:24:14,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530546448] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:14,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411096549] [2024-10-24 20:24:14,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:14,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:14,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:14,655 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) [2024-10-24 20:24:14,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 20:24:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:14,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:24:14,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:14,856 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:14,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:14,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411096549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:14,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:14,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-24 20:24:14,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012782310] [2024-10-24 20:24:14,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:14,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:14,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:14,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:14,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:24:14,859 INFO L87 Difference]: Start difference. First operand 322 states and 447 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:24:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:14,978 INFO L93 Difference]: Finished difference Result 340 states and 462 transitions. [2024-10-24 20:24:14,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:24:14,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2024-10-24 20:24:14,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:14,980 INFO L225 Difference]: With dead ends: 340 [2024-10-24 20:24:14,980 INFO L226 Difference]: Without dead ends: 339 [2024-10-24 20:24:14,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:24:14,981 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 124 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:14,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 123 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:14,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-10-24 20:24:15,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 322. [2024-10-24 20:24:15,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 258 states have (on average 1.372093023255814) internal successors, (354), 275 states have internal predecessors, (354), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 20:24:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 444 transitions. [2024-10-24 20:24:15,005 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 444 transitions. Word has length 70 [2024-10-24 20:24:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:15,005 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 444 transitions. [2024-10-24 20:24:15,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:24:15,006 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 444 transitions. [2024-10-24 20:24:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-24 20:24:15,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:15,006 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:15,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 20:24:15,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-24 20:24:15,207 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:15,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:15,208 INFO L85 PathProgramCache]: Analyzing trace with hash -858599817, now seen corresponding path program 1 times [2024-10-24 20:24:15,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:15,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009039854] [2024-10-24 20:24:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:15,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,364 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:15,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:15,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009039854] [2024-10-24 20:24:15,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009039854] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:15,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502004146] [2024-10-24 20:24:15,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:15,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:15,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:15,367 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) [2024-10-24 20:24:15,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 20:24:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:24:15,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:15,608 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-24 20:24:15,609 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:15,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502004146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:15,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:15,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-24 20:24:15,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51273684] [2024-10-24 20:24:15,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:15,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:15,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:15,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:15,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:24:15,611 INFO L87 Difference]: Start difference. First operand 322 states and 444 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:15,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:15,829 INFO L93 Difference]: Finished difference Result 341 states and 465 transitions. [2024-10-24 20:24:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:24:15,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 71 [2024-10-24 20:24:15,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:15,831 INFO L225 Difference]: With dead ends: 341 [2024-10-24 20:24:15,832 INFO L226 Difference]: Without dead ends: 340 [2024-10-24 20:24:15,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:24:15,832 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 58 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:15,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 117 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:24:15,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-24 20:24:15,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 331. [2024-10-24 20:24:15,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 267 states have (on average 1.3595505617977528) internal successors, (363), 284 states have internal predecessors, (363), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 20:24:15,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 453 transitions. [2024-10-24 20:24:15,861 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 453 transitions. Word has length 71 [2024-10-24 20:24:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:15,862 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 453 transitions. [2024-10-24 20:24:15,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 453 transitions. [2024-10-24 20:24:15,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-24 20:24:15,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:15,863 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:15,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-24 20:24:16,063 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,SelfDestructingSolverStorable16 [2024-10-24 20:24:16,063 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:16,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash -846790434, now seen corresponding path program 1 times [2024-10-24 20:24:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:16,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79748659] [2024-10-24 20:24:16,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:16,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:16,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:16,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79748659] [2024-10-24 20:24:16,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79748659] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:16,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582617106] [2024-10-24 20:24:16,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:16,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:16,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:16,212 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) [2024-10-24 20:24:16,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 20:24:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:24:16,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:16,363 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-24 20:24:16,364 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:16,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582617106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:16,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:16,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-24 20:24:16,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653975021] [2024-10-24 20:24:16,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:16,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:24:16,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:16,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:24:16,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:16,366 INFO L87 Difference]: Start difference. First operand 331 states and 453 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:16,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:16,516 INFO L93 Difference]: Finished difference Result 340 states and 459 transitions. [2024-10-24 20:24:16,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:16,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 72 [2024-10-24 20:24:16,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:16,518 INFO L225 Difference]: With dead ends: 340 [2024-10-24 20:24:16,518 INFO L226 Difference]: Without dead ends: 338 [2024-10-24 20:24:16,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:16,519 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 27 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 97 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 [2024-10-24 20:24:16,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 97 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:16,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-10-24 20:24:16,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 334. [2024-10-24 20:24:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 270 states have (on average 1.3296296296296297) internal successors, (359), 287 states have internal predecessors, (359), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 20:24:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 449 transitions. [2024-10-24 20:24:16,572 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 449 transitions. Word has length 72 [2024-10-24 20:24:16,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:16,572 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 449 transitions. [2024-10-24 20:24:16,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:16,573 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 449 transitions. [2024-10-24 20:24:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 20:24:16,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:16,573 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:16,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-24 20:24:16,778 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,SelfDestructingSolverStorable17 [2024-10-24 20:24:16,779 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:16,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2016785600, now seen corresponding path program 1 times [2024-10-24 20:24:16,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:16,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290254260] [2024-10-24 20:24:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:16,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038034609] [2024-10-24 20:24:16,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:16,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:16,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:16,801 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) [2024-10-24 20:24:16,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 20:24:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:16,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:24:16,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-24 20:24:17,087 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:17,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:17,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290254260] [2024-10-24 20:24:17,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:17,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038034609] [2024-10-24 20:24:17,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038034609] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:17,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:17,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-24 20:24:17,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626119158] [2024-10-24 20:24:17,674 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:17,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:24:17,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:17,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:24:17,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:24:17,675 INFO L87 Difference]: Start difference. First operand 334 states and 449 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:17,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:17,828 INFO L93 Difference]: Finished difference Result 418 states and 575 transitions. [2024-10-24 20:24:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:24:17,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 74 [2024-10-24 20:24:17,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:17,831 INFO L225 Difference]: With dead ends: 418 [2024-10-24 20:24:17,831 INFO L226 Difference]: Without dead ends: 417 [2024-10-24 20:24:17,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:24:17,831 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 79 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:17,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 87 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:17,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-10-24 20:24:17,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 394. [2024-10-24 20:24:17,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 324 states have (on average 1.345679012345679) internal successors, (436), 341 states have internal predecessors, (436), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:17,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 538 transitions. [2024-10-24 20:24:17,863 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 538 transitions. Word has length 74 [2024-10-24 20:24:17,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:17,863 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 538 transitions. [2024-10-24 20:24:17,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:17,863 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 538 transitions. [2024-10-24 20:24:17,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-24 20:24:17,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:17,864 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:17,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:18,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:18,069 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:18,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1904155923, now seen corresponding path program 1 times [2024-10-24 20:24:18,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:18,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683648089] [2024-10-24 20:24:18,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:18,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:18,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568735920] [2024-10-24 20:24:18,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:18,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:18,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:18,094 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) [2024-10-24 20:24:18,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 20:24:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:24:18,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-24 20:24:18,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:19,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:19,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683648089] [2024-10-24 20:24:19,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:19,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568735920] [2024-10-24 20:24:19,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568735920] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:19,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:19,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-24 20:24:19,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359061048] [2024-10-24 20:24:19,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:19,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:19,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:19,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:19,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:24:19,615 INFO L87 Difference]: Start difference. First operand 394 states and 538 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:19,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:19,755 INFO L93 Difference]: Finished difference Result 398 states and 538 transitions. [2024-10-24 20:24:19,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:24:19,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 75 [2024-10-24 20:24:19,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:19,757 INFO L225 Difference]: With dead ends: 398 [2024-10-24 20:24:19,757 INFO L226 Difference]: Without dead ends: 395 [2024-10-24 20:24:19,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:24:19,759 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 48 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:19,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 86 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:19,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-10-24 20:24:19,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 392. [2024-10-24 20:24:19,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 324 states have (on average 1.2746913580246915) internal successors, (413), 339 states have internal predecessors, (413), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:19,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 515 transitions. [2024-10-24 20:24:19,793 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 515 transitions. Word has length 75 [2024-10-24 20:24:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:19,793 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 515 transitions. [2024-10-24 20:24:19,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 515 transitions. [2024-10-24 20:24:19,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 20:24:19,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:19,796 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:19,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-24 20:24:20,000 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,SelfDestructingSolverStorable19 [2024-10-24 20:24:20,001 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:20,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:20,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1100708446, now seen corresponding path program 1 times [2024-10-24 20:24:20,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:20,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983416697] [2024-10-24 20:24:20,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:20,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,100 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-24 20:24:20,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:20,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983416697] [2024-10-24 20:24:20,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983416697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:20,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:20,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:24:20,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463787734] [2024-10-24 20:24:20,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:20,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:20,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:20,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:20,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:20,102 INFO L87 Difference]: Start difference. First operand 392 states and 515 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:20,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:20,611 INFO L93 Difference]: Finished difference Result 394 states and 515 transitions. [2024-10-24 20:24:20,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 20:24:20,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2024-10-24 20:24:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:20,613 INFO L225 Difference]: With dead ends: 394 [2024-10-24 20:24:20,614 INFO L226 Difference]: Without dead ends: 393 [2024-10-24 20:24:20,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:24:20,615 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 48 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:20,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 147 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:24:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-10-24 20:24:20,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2024-10-24 20:24:20,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 324 states have (on average 1.2469135802469136) internal successors, (404), 338 states have internal predecessors, (404), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:20,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 506 transitions. [2024-10-24 20:24:20,648 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 506 transitions. Word has length 76 [2024-10-24 20:24:20,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:20,648 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 506 transitions. [2024-10-24 20:24:20,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:20,648 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 506 transitions. [2024-10-24 20:24:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 20:24:20,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:20,649 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:20,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 20:24:20,649 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:20,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:20,650 INFO L85 PathProgramCache]: Analyzing trace with hash 237776629, now seen corresponding path program 1 times [2024-10-24 20:24:20,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:20,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600200104] [2024-10-24 20:24:20,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:20,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:20,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:20,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600200104] [2024-10-24 20:24:20,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600200104] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:20,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165336246] [2024-10-24 20:24:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:20,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:20,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:20,836 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) [2024-10-24 20:24:20,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 20:24:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 20:24:20,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:21,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:22,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165336246] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:22,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 20:24:22,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-10-24 20:24:22,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005972075] [2024-10-24 20:24:22,097 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:22,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 20:24:22,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:22,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 20:24:22,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-24 20:24:22,099 INFO L87 Difference]: Start difference. First operand 391 states and 506 transitions. Second operand has 16 states, 15 states have (on average 5.0) internal successors, (75), 16 states have internal predecessors, (75), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-10-24 20:24:23,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:23,650 INFO L93 Difference]: Finished difference Result 685 states and 910 transitions. [2024-10-24 20:24:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-24 20:24:23,653 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 16 states have internal predecessors, (75), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 77 [2024-10-24 20:24:23,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:23,657 INFO L225 Difference]: With dead ends: 685 [2024-10-24 20:24:23,657 INFO L226 Difference]: Without dead ends: 680 [2024-10-24 20:24:23,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2024-10-24 20:24:23,659 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 347 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:23,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 323 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 20:24:23,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-10-24 20:24:23,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 527. [2024-10-24 20:24:23,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 444 states have (on average 1.2387387387387387) internal successors, (550), 458 states have internal predecessors, (550), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-10-24 20:24:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 684 transitions. [2024-10-24 20:24:23,715 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 684 transitions. Word has length 77 [2024-10-24 20:24:23,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:23,716 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 684 transitions. [2024-10-24 20:24:23,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 16 states have internal predecessors, (75), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-10-24 20:24:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 684 transitions. [2024-10-24 20:24:23,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 20:24:23,717 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:23,717 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:23,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-24 20:24:23,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:23,918 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:23,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:23,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1730098740, now seen corresponding path program 1 times [2024-10-24 20:24:23,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:23,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602572339] [2024-10-24 20:24:23,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:23,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:23,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242106289] [2024-10-24 20:24:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:23,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:23,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:23,940 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) [2024-10-24 20:24:23,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-24 20:24:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:23,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 20:24:24,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 3 proven. 41 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-24 20:24:24,314 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:24,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:24,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602572339] [2024-10-24 20:24:24,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:24,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242106289] [2024-10-24 20:24:24,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242106289] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:24,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:24,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-24 20:24:24,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841608140] [2024-10-24 20:24:24,777 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:24,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 20:24:24,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:24,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 20:24:24,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:24:24,779 INFO L87 Difference]: Start difference. First operand 527 states and 684 transitions. Second operand has 11 states, 10 states have (on average 4.7) internal successors, (47), 11 states have internal predecessors, (47), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-10-24 20:24:25,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:25,188 INFO L93 Difference]: Finished difference Result 547 states and 696 transitions. [2024-10-24 20:24:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 20:24:25,189 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 11 states have internal predecessors, (47), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 91 [2024-10-24 20:24:25,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:25,191 INFO L225 Difference]: With dead ends: 547 [2024-10-24 20:24:25,192 INFO L226 Difference]: Without dead ends: 425 [2024-10-24 20:24:25,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:24:25,195 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:25,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 198 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:24:25,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-10-24 20:24:25,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 423. [2024-10-24 20:24:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 352 states have (on average 1.2272727272727273) internal successors, (432), 366 states have internal predecessors, (432), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-24 20:24:25,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 542 transitions. [2024-10-24 20:24:25,229 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 542 transitions. Word has length 91 [2024-10-24 20:24:25,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:25,230 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 542 transitions. [2024-10-24 20:24:25,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 11 states have internal predecessors, (47), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-10-24 20:24:25,230 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 542 transitions. [2024-10-24 20:24:25,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 20:24:25,232 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:25,232 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:25,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-24 20:24:25,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:25,437 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:25,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:25,438 INFO L85 PathProgramCache]: Analyzing trace with hash 472549654, now seen corresponding path program 1 times [2024-10-24 20:24:25,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:25,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950594517] [2024-10-24 20:24:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:25,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:24:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 20:24:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:25,525 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-10-24 20:24:25,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:25,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950594517] [2024-10-24 20:24:25,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950594517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:25,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:25,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:24:25,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897381453] [2024-10-24 20:24:25,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:25,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:25,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:25,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:25,528 INFO L87 Difference]: Start difference. First operand 423 states and 542 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 20:24:26,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:26,082 INFO L93 Difference]: Finished difference Result 425 states and 542 transitions. [2024-10-24 20:24:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:24:26,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 93 [2024-10-24 20:24:26,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:26,085 INFO L225 Difference]: With dead ends: 425 [2024-10-24 20:24:26,085 INFO L226 Difference]: Without dead ends: 392 [2024-10-24 20:24:26,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:26,087 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 22 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:26,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 182 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 20:24:26,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-10-24 20:24:26,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 390. [2024-10-24 20:24:26,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 324 states have (on average 1.2407407407407407) internal successors, (402), 337 states have internal predecessors, (402), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:26,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 504 transitions. [2024-10-24 20:24:26,135 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 504 transitions. Word has length 93 [2024-10-24 20:24:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:26,136 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 504 transitions. [2024-10-24 20:24:26,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 20:24:26,136 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 504 transitions. [2024-10-24 20:24:26,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 20:24:26,137 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:26,137 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2024-10-24 20:24:26,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 20:24:26,138 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:26,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:26,138 INFO L85 PathProgramCache]: Analyzing trace with hash -792946040, now seen corresponding path program 1 times [2024-10-24 20:24:26,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:26,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023431837] [2024-10-24 20:24:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:26,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 20:24:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 20:24:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 20:24:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 20:24:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 20:24:26,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:26,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023431837] [2024-10-24 20:24:26,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023431837] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:26,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781548557] [2024-10-24 20:24:26,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:26,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:26,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:26,257 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) [2024-10-24 20:24:26,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-24 20:24:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:26,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:24:26,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 20:24:26,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 20:24:26,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781548557] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:26,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:26,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 20:24:26,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925160486] [2024-10-24 20:24:26,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:26,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 20:24:26,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:26,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 20:24:26,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:24:26,494 INFO L87 Difference]: Start difference. First operand 390 states and 504 transitions. Second operand has 11 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-10-24 20:24:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:26,794 INFO L93 Difference]: Finished difference Result 796 states and 1027 transitions. [2024-10-24 20:24:26,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 20:24:26,795 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 95 [2024-10-24 20:24:26,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:26,799 INFO L225 Difference]: With dead ends: 796 [2024-10-24 20:24:26,799 INFO L226 Difference]: Without dead ends: 794 [2024-10-24 20:24:26,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:24:26,800 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 214 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:26,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 341 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:24:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-10-24 20:24:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 540. [2024-10-24 20:24:26,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 450 states have (on average 1.2444444444444445) internal successors, (560), 463 states have internal predecessors, (560), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-24 20:24:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 710 transitions. [2024-10-24 20:24:26,873 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 710 transitions. Word has length 95 [2024-10-24 20:24:26,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:26,875 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 710 transitions. [2024-10-24 20:24:26,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.0) internal successors, (80), 11 states have internal predecessors, (80), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-10-24 20:24:26,875 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 710 transitions. [2024-10-24 20:24:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 20:24:26,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:26,876 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:26,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:27,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-24 20:24:27,082 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:27,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1070794258, now seen corresponding path program 2 times [2024-10-24 20:24:27,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:27,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851044653] [2024-10-24 20:24:27,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:27,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:27,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821372181] [2024-10-24 20:24:27,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:24:27,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:27,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:27,103 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) [2024-10-24 20:24:27,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-24 20:24:27,161 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:24:27,162 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:27,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-24 20:24:27,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-24 20:24:27,651 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:28,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:28,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851044653] [2024-10-24 20:24:28,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:28,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821372181] [2024-10-24 20:24:28,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821372181] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:28,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:28,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:24:28,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964823654] [2024-10-24 20:24:28,630 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:28,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:24:28,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:28,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:24:28,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:24:28,631 INFO L87 Difference]: Start difference. First operand 540 states and 710 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 20:24:29,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:29,128 INFO L93 Difference]: Finished difference Result 564 states and 740 transitions. [2024-10-24 20:24:29,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 20:24:29,129 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 100 [2024-10-24 20:24:29,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:29,132 INFO L225 Difference]: With dead ends: 564 [2024-10-24 20:24:29,132 INFO L226 Difference]: Without dead ends: 563 [2024-10-24 20:24:29,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-10-24 20:24:29,134 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 29 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:29,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 289 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:24:29,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-10-24 20:24:29,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 540. [2024-10-24 20:24:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 450 states have (on average 1.2422222222222221) internal successors, (559), 463 states have internal predecessors, (559), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-24 20:24:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 709 transitions. [2024-10-24 20:24:29,177 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 709 transitions. Word has length 100 [2024-10-24 20:24:29,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:29,177 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 709 transitions. [2024-10-24 20:24:29,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 20:24:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 709 transitions. [2024-10-24 20:24:29,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 20:24:29,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:29,179 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:29,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-24 20:24:29,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-24 20:24:29,381 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:29,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:29,381 INFO L85 PathProgramCache]: Analyzing trace with hash 844945041, now seen corresponding path program 2 times [2024-10-24 20:24:29,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:29,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482391990] [2024-10-24 20:24:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:29,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 20:24:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 20:24:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 20:24:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 20:24:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:24:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:29,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482391990] [2024-10-24 20:24:29,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482391990] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378063211] [2024-10-24 20:24:29,531 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:24:29,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:29,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:29,533 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) [2024-10-24 20:24:29,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-24 20:24:29,592 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:24:29,592 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:29,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:24:29,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:29,672 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:29,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378063211] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:29,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:29,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-10-24 20:24:29,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410498702] [2024-10-24 20:24:29,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:29,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:24:29,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:29,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:24:29,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:24:29,814 INFO L87 Difference]: Start difference. First operand 540 states and 709 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 20:24:29,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:29,942 INFO L93 Difference]: Finished difference Result 549 states and 715 transitions. [2024-10-24 20:24:29,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:24:29,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 114 [2024-10-24 20:24:29,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:29,945 INFO L225 Difference]: With dead ends: 549 [2024-10-24 20:24:29,945 INFO L226 Difference]: Without dead ends: 542 [2024-10-24 20:24:29,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 250 SyntacticMatches, 5 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:24:29,946 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 30 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:29,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 216 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:29,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-10-24 20:24:29,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 540. [2024-10-24 20:24:29,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 450 states have (on average 1.2333333333333334) internal successors, (555), 463 states have internal predecessors, (555), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-24 20:24:29,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 705 transitions. [2024-10-24 20:24:29,998 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 705 transitions. Word has length 114 [2024-10-24 20:24:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:29,998 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 705 transitions. [2024-10-24 20:24:29,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-24 20:24:29,999 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 705 transitions. [2024-10-24 20:24:30,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 20:24:30,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:30,000 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-10-24 20:24:30,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-24 20:24:30,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-24 20:24:30,201 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:30,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:30,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1803512035, now seen corresponding path program 2 times [2024-10-24 20:24:30,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:30,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005440021] [2024-10-24 20:24:30,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:30,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 20:24:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 20:24:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 20:24:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 20:24:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 20:24:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 20:24:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 20:24:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 20:24:30,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:30,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005440021] [2024-10-24 20:24:30,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005440021] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:30,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197981518] [2024-10-24 20:24:30,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:24:30,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:30,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:30,344 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) [2024-10-24 20:24:30,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-24 20:24:30,389 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 20:24:30,389 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:30,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:24:30,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:30,499 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2024-10-24 20:24:30,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2024-10-24 20:24:30,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197981518] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:30,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:30,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-10-24 20:24:30,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238611342] [2024-10-24 20:24:30,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:30,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 20:24:30,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:30,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 20:24:30,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-10-24 20:24:30,647 INFO L87 Difference]: Start difference. First operand 540 states and 705 transitions. Second operand has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 15 states have internal predecessors, (72), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-10-24 20:24:31,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:31,254 INFO L93 Difference]: Finished difference Result 902 states and 1208 transitions. [2024-10-24 20:24:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 20:24:31,255 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 15 states have internal predecessors, (72), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 116 [2024-10-24 20:24:31,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:31,258 INFO L225 Difference]: With dead ends: 902 [2024-10-24 20:24:31,258 INFO L226 Difference]: Without dead ends: 900 [2024-10-24 20:24:31,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=223, Invalid=479, Unknown=0, NotChecked=0, Total=702 [2024-10-24 20:24:31,260 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 997 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:31,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 314 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:24:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-10-24 20:24:31,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 434. [2024-10-24 20:24:31,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 358 states have (on average 1.1983240223463687) internal successors, (429), 369 states have internal predecessors, (429), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-10-24 20:24:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 555 transitions. [2024-10-24 20:24:31,306 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 555 transitions. Word has length 116 [2024-10-24 20:24:31,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:31,307 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 555 transitions. [2024-10-24 20:24:31,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 15 states have internal predecessors, (72), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-10-24 20:24:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 555 transitions. [2024-10-24 20:24:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-24 20:24:31,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:31,309 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:31,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:31,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:31,514 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:31,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:31,514 INFO L85 PathProgramCache]: Analyzing trace with hash -969840553, now seen corresponding path program 1 times [2024-10-24 20:24:31,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:31,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872880359] [2024-10-24 20:24:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:31,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 20:24:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 20:24:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 20:24:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 20:24:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 20:24:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:31,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:31,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872880359] [2024-10-24 20:24:31,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872880359] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:31,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050344268] [2024-10-24 20:24:31,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:31,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:31,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:31,753 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) [2024-10-24 20:24:31,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-24 20:24:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:31,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:24:31,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 22 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:32,111 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:32,482 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 25 proven. 15 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:32,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050344268] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:32,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:32,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-10-24 20:24:32,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233935145] [2024-10-24 20:24:32,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:32,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 20:24:32,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:32,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 20:24:32,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-10-24 20:24:32,485 INFO L87 Difference]: Start difference. First operand 434 states and 555 transitions. Second operand has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-10-24 20:24:33,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:33,161 INFO L93 Difference]: Finished difference Result 577 states and 740 transitions. [2024-10-24 20:24:33,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 20:24:33,162 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 116 [2024-10-24 20:24:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:33,164 INFO L225 Difference]: With dead ends: 577 [2024-10-24 20:24:33,165 INFO L226 Difference]: Without dead ends: 486 [2024-10-24 20:24:33,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=430, Invalid=1210, Unknown=0, NotChecked=0, Total=1640 [2024-10-24 20:24:33,167 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 778 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:33,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 429 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:24:33,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-10-24 20:24:33,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 423. [2024-10-24 20:24:33,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 345 states have (on average 1.2260869565217392) internal successors, (423), 356 states have internal predecessors, (423), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-10-24 20:24:33,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 553 transitions. [2024-10-24 20:24:33,233 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 553 transitions. Word has length 116 [2024-10-24 20:24:33,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:33,234 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 553 transitions. [2024-10-24 20:24:33,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.428571428571429) internal successors, (156), 22 states have internal predecessors, (156), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-10-24 20:24:33,234 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 553 transitions. [2024-10-24 20:24:33,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 20:24:33,236 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:33,237 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:33,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:33,438 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,SelfDestructingSolverStorable28 [2024-10-24 20:24:33,438 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:33,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1896291402, now seen corresponding path program 1 times [2024-10-24 20:24:33,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:33,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206832770] [2024-10-24 20:24:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:33,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 20:24:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 20:24:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 20:24:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 20:24:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:24:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,735 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-10-24 20:24:33,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:33,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206832770] [2024-10-24 20:24:33,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206832770] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:33,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932836938] [2024-10-24 20:24:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:33,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:33,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:33,738 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) [2024-10-24 20:24:33,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-24 20:24:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:24:33,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:34,021 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:34,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:36,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932836938] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:36,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:36,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-10-24 20:24:36,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202627468] [2024-10-24 20:24:36,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:36,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 20:24:36,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:36,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 20:24:36,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:24:36,646 INFO L87 Difference]: Start difference. First operand 423 states and 553 transitions. Second operand has 21 states, 20 states have (on average 8.05) internal successors, (161), 21 states have internal predecessors, (161), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-10-24 20:24:37,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:37,073 INFO L93 Difference]: Finished difference Result 558 states and 742 transitions. [2024-10-24 20:24:37,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 20:24:37,074 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 8.05) internal successors, (161), 21 states have internal predecessors, (161), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 121 [2024-10-24 20:24:37,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:37,077 INFO L225 Difference]: With dead ends: 558 [2024-10-24 20:24:37,077 INFO L226 Difference]: Without dead ends: 557 [2024-10-24 20:24:37,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2024-10-24 20:24:37,078 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 196 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:37,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 319 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:24:37,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-10-24 20:24:37,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 422. [2024-10-24 20:24:37,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 345 states have (on average 1.2173913043478262) internal successors, (420), 355 states have internal predecessors, (420), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-10-24 20:24:37,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 550 transitions. [2024-10-24 20:24:37,124 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 550 transitions. Word has length 121 [2024-10-24 20:24:37,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:37,125 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 550 transitions. [2024-10-24 20:24:37,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.05) internal successors, (161), 21 states have internal predecessors, (161), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-10-24 20:24:37,125 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 550 transitions. [2024-10-24 20:24:37,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 20:24:37,126 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:37,126 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:37,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:37,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:37,327 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:37,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:37,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1344508799, now seen corresponding path program 1 times [2024-10-24 20:24:37,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:37,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405017863] [2024-10-24 20:24:37,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:37,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:24:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:24:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:24:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:24:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:24:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:24:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:24:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 20:24:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 20:24:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 20:24:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 20:24:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:24:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,599 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:37,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:37,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405017863] [2024-10-24 20:24:37,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405017863] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:37,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204097004] [2024-10-24 20:24:37,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:37,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:37,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:37,603 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) [2024-10-24 20:24:37,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-24 20:24:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:37,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 20:24:37,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:37,944 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:37,944 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:39,307 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:39,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204097004] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:39,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:39,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-10-24 20:24:39,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598669800] [2024-10-24 20:24:39,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:39,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 20:24:39,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:39,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 20:24:39,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-10-24 20:24:39,310 INFO L87 Difference]: Start difference. First operand 422 states and 550 transitions. Second operand has 22 states, 21 states have (on average 8.095238095238095) internal successors, (170), 22 states have internal predecessors, (170), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-10-24 20:24:40,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:40,414 INFO L93 Difference]: Finished difference Result 684 states and 873 transitions. [2024-10-24 20:24:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 20:24:40,414 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.095238095238095) internal successors, (170), 22 states have internal predecessors, (170), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 122 [2024-10-24 20:24:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:40,419 INFO L225 Difference]: With dead ends: 684 [2024-10-24 20:24:40,419 INFO L226 Difference]: Without dead ends: 683 [2024-10-24 20:24:40,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 20:24:40,421 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 307 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:40,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 511 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 20:24:40,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-10-24 20:24:40,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 565. [2024-10-24 20:24:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 472 states have (on average 1.2139830508474576) internal successors, (573), 482 states have internal predecessors, (573), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 20:24:40,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 735 transitions. [2024-10-24 20:24:40,491 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 735 transitions. Word has length 122 [2024-10-24 20:24:40,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:40,492 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 735 transitions. [2024-10-24 20:24:40,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.095238095238095) internal successors, (170), 22 states have internal predecessors, (170), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-10-24 20:24:40,492 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 735 transitions. [2024-10-24 20:24:40,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 20:24:40,493 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:40,493 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2024-10-24 20:24:40,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-10-24 20:24:40,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:40,694 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:24:40,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:40,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1855422037, now seen corresponding path program 3 times [2024-10-24 20:24:40,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:40,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625563158] [2024-10-24 20:24:40,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:40,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:40,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425603762] [2024-10-24 20:24:40,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:24:40,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:40,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:40,720 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) [2024-10-24 20:24:40,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-24 20:24:40,771 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 20:24:40,771 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:40,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 20:24:40,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:41,260 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 39 proven. 5 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-10-24 20:24:41,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:25:02,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:25:02,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625563158] [2024-10-24 20:25:02,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:25:02,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425603762] [2024-10-24 20:25:02,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425603762] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:25:02,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:25:02,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:25:02,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78926536] [2024-10-24 20:25:02,852 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:25:02,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:25:02,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:25:02,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:25:02,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=241, Unknown=4, NotChecked=0, Total=306 [2024-10-24 20:25:02,853 INFO L87 Difference]: Start difference. First operand 565 states and 735 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:25:03,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:25:03,442 INFO L93 Difference]: Finished difference Result 578 states and 747 transitions. [2024-10-24 20:25:03,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 20:25:03,443 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 123 [2024-10-24 20:25:03,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:25:03,445 INFO L225 Difference]: With dead ends: 578 [2024-10-24 20:25:03,445 INFO L226 Difference]: Without dead ends: 577 [2024-10-24 20:25:03,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=160, Invalid=538, Unknown=4, NotChecked=0, Total=702 [2024-10-24 20:25:03,447 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 163 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:25:03,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 105 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:25:03,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-10-24 20:25:03,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 565. [2024-10-24 20:25:03,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 472 states have (on average 1.201271186440678) internal successors, (567), 482 states have internal predecessors, (567), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 20:25:03,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 729 transitions. [2024-10-24 20:25:03,521 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 729 transitions. Word has length 123 [2024-10-24 20:25:03,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:25:03,521 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 729 transitions. [2024-10-24 20:25:03,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:25:03,522 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 729 transitions. [2024-10-24 20:25:03,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 20:25:03,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:25:03,524 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 20:25:03,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-10-24 20:25:03,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:25:03,724 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:25:03,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:25:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash -712197727, now seen corresponding path program 2 times [2024-10-24 20:25:03,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:25:03,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561562366] [2024-10-24 20:25:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:25:03,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:25:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:25:03,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450370053] [2024-10-24 20:25:03,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:25:03,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:25:03,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:25:03,757 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) [2024-10-24 20:25:03,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-24 20:25:03,801 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 20:25:03,801 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:25:03,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:25:03,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:25:03,923 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2024-10-24 20:25:03,923 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:25:03,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:25:03,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561562366] [2024-10-24 20:25:03,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:25:03,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450370053] [2024-10-24 20:25:03,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450370053] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:25:03,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:25:03,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:25:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291100595] [2024-10-24 20:25:03,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:25:03,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:25:03,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:25:03,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:25:03,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:25:03,926 INFO L87 Difference]: Start difference. First operand 565 states and 729 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:25:04,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:25:04,072 INFO L93 Difference]: Finished difference Result 565 states and 729 transitions. [2024-10-24 20:25:04,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:25:04,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 124 [2024-10-24 20:25:04,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:25:04,076 INFO L225 Difference]: With dead ends: 565 [2024-10-24 20:25:04,076 INFO L226 Difference]: Without dead ends: 564 [2024-10-24 20:25:04,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:25:04,077 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 61 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:25:04,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 58 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:25:04,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-10-24 20:25:04,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 534. [2024-10-24 20:25:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 446 states have (on average 1.1726457399103138) internal successors, (523), 455 states have internal predecessors, (523), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-10-24 20:25:04,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 677 transitions. [2024-10-24 20:25:04,136 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 677 transitions. Word has length 124 [2024-10-24 20:25:04,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:25:04,137 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 677 transitions. [2024-10-24 20:25:04,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:25:04,137 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 677 transitions. [2024-10-24 20:25:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 20:25:04,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:25:04,138 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 20:25:04,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-10-24 20:25:04,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:25:04,339 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:25:04,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:25:04,339 INFO L85 PathProgramCache]: Analyzing trace with hash 56039668, now seen corresponding path program 4 times [2024-10-24 20:25:04,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:25:04,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663903173] [2024-10-24 20:25:04,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:25:04,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:25:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 20:25:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-24 20:25:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 20:25:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:25:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:25:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:25:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 20:25:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 20:25:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:25:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 20:25:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 20:25:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 20:25:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:25:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:25:04,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:25:04,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663903173] [2024-10-24 20:25:04,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663903173] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:25:04,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609191554] [2024-10-24 20:25:04,723 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 20:25:04,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:25:04,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:25:04,725 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) [2024-10-24 20:25:04,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-24 20:25:04,801 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 20:25:04,801 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:25:04,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-24 20:25:04,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:25:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 61 proven. 29 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-10-24 20:25:05,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:25:15,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609191554] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:25:15,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 20:25:15,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14] total 24 [2024-10-24 20:25:15,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889053951] [2024-10-24 20:25:15,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 20:25:15,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-24 20:25:15,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:25:15,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-24 20:25:15,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=772, Unknown=2, NotChecked=0, Total=870 [2024-10-24 20:25:15,281 INFO L87 Difference]: Start difference. First operand 534 states and 677 transitions. Second operand has 25 states, 24 states have (on average 5.416666666666667) internal successors, (130), 25 states have internal predecessors, (130), 9 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 10 states have call predecessors, (26), 9 states have call successors, (26) [2024-10-24 20:25:18,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:25:18,461 INFO L93 Difference]: Finished difference Result 933 states and 1189 transitions. [2024-10-24 20:25:18,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-10-24 20:25:18,462 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.416666666666667) internal successors, (130), 25 states have internal predecessors, (130), 9 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 10 states have call predecessors, (26), 9 states have call successors, (26) Word has length 127 [2024-10-24 20:25:18,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:25:18,466 INFO L225 Difference]: With dead ends: 933 [2024-10-24 20:25:18,466 INFO L226 Difference]: Without dead ends: 927 [2024-10-24 20:25:18,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1410 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=883, Invalid=4967, Unknown=2, NotChecked=0, Total=5852 [2024-10-24 20:25:18,469 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 910 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:25:18,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 553 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 20:25:18,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-10-24 20:25:18,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 683. [2024-10-24 20:25:18,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 583 states have (on average 1.169811320754717) internal successors, (682), 592 states have internal predecessors, (682), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-10-24 20:25:18,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 860 transitions. [2024-10-24 20:25:18,563 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 860 transitions. Word has length 127 [2024-10-24 20:25:18,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:25:18,565 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 860 transitions. [2024-10-24 20:25:18,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.416666666666667) internal successors, (130), 25 states have internal predecessors, (130), 9 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 10 states have call predecessors, (26), 9 states have call successors, (26) [2024-10-24 20:25:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 860 transitions. [2024-10-24 20:25:18,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 20:25:18,567 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:25:18,568 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:25:18,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-24 20:25:18,771 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,SelfDestructingSolverStorable33 [2024-10-24 20:25:18,772 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:25:18,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:25:18,772 INFO L85 PathProgramCache]: Analyzing trace with hash -880206758, now seen corresponding path program 1 times [2024-10-24 20:25:18,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:25:18,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159458982] [2024-10-24 20:25:18,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:25:18,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:25:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:25:18,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10521618] [2024-10-24 20:25:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:25:18,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:25:18,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:25:18,796 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) [2024-10-24 20:25:18,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-24 20:25:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:18,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:25:18,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:25:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-10-24 20:25:18,994 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:25:18,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:25:18,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159458982] [2024-10-24 20:25:18,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:25:18,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10521618] [2024-10-24 20:25:18,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10521618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:25:18,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:25:18,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:25:18,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556004574] [2024-10-24 20:25:18,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:25:18,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:25:18,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:25:18,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:25:18,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:25:18,998 INFO L87 Difference]: Start difference. First operand 683 states and 860 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:25:19,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:25:19,099 INFO L93 Difference]: Finished difference Result 683 states and 860 transitions. [2024-10-24 20:25:19,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:25:19,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 130 [2024-10-24 20:25:19,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:25:19,102 INFO L225 Difference]: With dead ends: 683 [2024-10-24 20:25:19,103 INFO L226 Difference]: Without dead ends: 681 [2024-10-24 20:25:19,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:25:19,103 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 28 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:25:19,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 50 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:25:19,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-10-24 20:25:19,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 534. [2024-10-24 20:25:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 452 states have (on average 1.1393805309734513) internal successors, (515), 459 states have internal predecessors, (515), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-10-24 20:25:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 661 transitions. [2024-10-24 20:25:19,176 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 661 transitions. Word has length 130 [2024-10-24 20:25:19,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:25:19,177 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 661 transitions. [2024-10-24 20:25:19,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:25:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 661 transitions. [2024-10-24 20:25:19,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 20:25:19,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:25:19,178 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:25:19,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-10-24 20:25:19,379 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,SelfDestructingSolverStorable34 [2024-10-24 20:25:19,379 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:25:19,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:25:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash -536642963, now seen corresponding path program 1 times [2024-10-24 20:25:19,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:25:19,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212463833] [2024-10-24 20:25:19,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:25:19,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:25:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:25:19,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1573278502] [2024-10-24 20:25:19,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:25:19,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:25:19,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:25:19,405 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) [2024-10-24 20:25:19,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-24 20:25:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:19,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 20:25:19,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:25:19,872 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 20:25:19,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:25:20,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:25:20,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212463833] [2024-10-24 20:25:20,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:25:20,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573278502] [2024-10-24 20:25:20,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573278502] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:25:20,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:25:20,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:25:20,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025808815] [2024-10-24 20:25:20,274 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:25:20,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:25:20,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:25:20,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:25:20,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:25:20,275 INFO L87 Difference]: Start difference. First operand 534 states and 661 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 20:25:20,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:25:20,648 INFO L93 Difference]: Finished difference Result 538 states and 665 transitions. [2024-10-24 20:25:20,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 20:25:20,648 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 137 [2024-10-24 20:25:20,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:25:20,651 INFO L225 Difference]: With dead ends: 538 [2024-10-24 20:25:20,651 INFO L226 Difference]: Without dead ends: 537 [2024-10-24 20:25:20,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:25:20,652 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 15 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:25:20,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 223 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:25:20,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-10-24 20:25:20,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 535. [2024-10-24 20:25:20,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 453 states have (on average 1.1390728476821192) internal successors, (516), 460 states have internal predecessors, (516), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-10-24 20:25:20,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 662 transitions. [2024-10-24 20:25:20,721 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 662 transitions. Word has length 137 [2024-10-24 20:25:20,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:25:20,721 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 662 transitions. [2024-10-24 20:25:20,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 20:25:20,721 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 662 transitions. [2024-10-24 20:25:20,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 20:25:20,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:25:20,723 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:25:20,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-10-24 20:25:20,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-10-24 20:25:20,927 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-24 20:25:20,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:25:20,927 INFO L85 PathProgramCache]: Analyzing trace with hash 543937458, now seen corresponding path program 1 times [2024-10-24 20:25:20,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:25:20,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063164868] [2024-10-24 20:25:20,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:25:20,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:25:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:25:20,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1385052497] [2024-10-24 20:25:20,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:25:20,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:25:20,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:25:20,951 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) [2024-10-24 20:25:20,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-24 20:25:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:25:21,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-24 20:25:21,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:25:21,571 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 20:25:21,571 INFO L311 TraceCheckSpWp]: Computing backward predicates...