./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/mannadiv_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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/mannadiv_valuebound5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:57:21,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:57:21,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:57:21,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:57:21,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:57:21,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:57:21,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:57:21,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:57:21,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:57:21,803 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:57:21,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:57:21,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:57:21,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:57:21,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:57:21,805 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:57:21,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:57:21,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:57:21,806 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:57:21,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:57:21,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:57:21,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:57:21,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:57:21,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:57:21,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:57:21,811 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:57:21,811 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:57:21,811 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:57:21,812 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:57:21,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:57:21,812 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:57:21,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:57:21,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:57:21,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:57:21,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:57:21,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:57:21,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:57:21,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:57:21,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:57:21,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:57:21,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:57:21,815 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:57:21,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:57:21,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:57:21,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:57:21,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-10-14 20:57:22,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:57:22,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:57:22,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:57:22,084 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:57:22,085 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:57:22,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c [2024-10-14 20:57:23,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:57:23,689 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:57:23,689 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound5.c [2024-10-14 20:57:23,695 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f55f3d42/4f2b9ac5fbcb4ded8b912aceedb4a364/FLAGaa2ac9749 [2024-10-14 20:57:24,091 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f55f3d42/4f2b9ac5fbcb4ded8b912aceedb4a364 [2024-10-14 20:57:24,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:57:24,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:57:24,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:57:24,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:57:24,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:57:24,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7efc6ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24, skipping insertion in model container [2024-10-14 20:57:24,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:57:24,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:57:24,342 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:57:24,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:57:24,371 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:57:24,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24 WrapperNode [2024-10-14 20:57:24,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:57:24,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:57:24,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:57:24,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:57:24,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,397 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-10-14 20:57:24,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:57:24,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:57:24,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:57:24,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:57:24,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,428 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 20:57:24,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:57:24,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:57:24,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:57:24,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:57:24,441 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (1/1) ... [2024-10-14 20:57:24,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:57:24,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:24,482 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) [2024-10-14 20:57:24,485 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 [2024-10-14 20:57:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:57:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 20:57:24,527 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 20:57:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:57:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:57:24,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:57:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:57:24,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:57:24,574 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:57:24,576 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:57:24,730 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-10-14 20:57:24,730 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:57:24,763 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:57:24,764 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:57:24,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:57:24 BoogieIcfgContainer [2024-10-14 20:57:24,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:57:24,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:57:24,767 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:57:24,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:57:24,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:57:24" (1/3) ... [2024-10-14 20:57:24,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57da9599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:57:24, skipping insertion in model container [2024-10-14 20:57:24,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:57:24" (2/3) ... [2024-10-14 20:57:24,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57da9599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:57:24, skipping insertion in model container [2024-10-14 20:57:24,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:57:24" (3/3) ... [2024-10-14 20:57:24,773 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound5.c [2024-10-14 20:57:24,793 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:57:24,793 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-10-14 20:57:24,859 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:57:24,867 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;@74dc6b43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:57:24,868 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-14 20:57:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 32 states have (on average 1.8125) internal successors, (58), 52 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:57:24,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:57:24,882 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:24,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:24,883 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:24,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:24,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1455350132, now seen corresponding path program 1 times [2024-10-14 20:57:24,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:24,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144306983] [2024-10-14 20:57:24,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:24,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:25,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:25,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:25,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:25,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144306983] [2024-10-14 20:57:25,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144306983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:25,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:25,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:57:25,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357239004] [2024-10-14 20:57:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:25,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:57:25,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:25,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:57:25,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:57:25,105 INFO L87 Difference]: Start difference. First operand has 59 states, 32 states have (on average 1.8125) internal successors, (58), 52 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:25,128 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2024-10-14 20:57:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:57:25,130 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-14 20:57:25,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:25,137 INFO L225 Difference]: With dead ends: 116 [2024-10-14 20:57:25,137 INFO L226 Difference]: Without dead ends: 56 [2024-10-14 20:57:25,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:57:25,143 INFO L432 NwaCegarLoop]: 60 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, 60 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 [2024-10-14 20:57:25,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:57:25,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-14 20:57:25,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-10-14 20:57:25,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 50 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:57:25,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2024-10-14 20:57:25,174 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 14 [2024-10-14 20:57:25,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:25,175 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2024-10-14 20:57:25,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:25,176 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2024-10-14 20:57:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:57:25,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:25,177 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:25,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:57:25,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:25,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:25,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1455350117, now seen corresponding path program 1 times [2024-10-14 20:57:25,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:25,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266656017] [2024-10-14 20:57:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:25,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:25,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693423800] [2024-10-14 20:57:25,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:25,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:25,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:25,218 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) [2024-10-14 20:57:25,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:57:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:25,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:57:25,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:25,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:25,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:25,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266656017] [2024-10-14 20:57:25,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:25,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693423800] [2024-10-14 20:57:25,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693423800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:25,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:25,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:57:25,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545302332] [2024-10-14 20:57:25,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:25,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:57:25,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:25,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:57:25,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:57:25,340 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:25,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:25,426 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2024-10-14 20:57:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:57:25,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-14 20:57:25,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:25,430 INFO L225 Difference]: With dead ends: 90 [2024-10-14 20:57:25,430 INFO L226 Difference]: Without dead ends: 84 [2024-10-14 20:57:25,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:57:25,433 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:25,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 73 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-14 20:57:25,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2024-10-14 20:57:25,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.66) internal successors, (83), 69 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:57:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2024-10-14 20:57:25,447 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 14 [2024-10-14 20:57:25,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:25,448 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2024-10-14 20:57:25,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2024-10-14 20:57:25,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 20:57:25,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:25,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:25,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 20:57:25,654 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 [2024-10-14 20:57:25,655 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:25,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:25,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1567877597, now seen corresponding path program 1 times [2024-10-14 20:57:25,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:25,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610755912] [2024-10-14 20:57:25,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:25,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:25,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:25,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:25,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:25,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610755912] [2024-10-14 20:57:25,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610755912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:25,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:25,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:25,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783861412] [2024-10-14 20:57:25,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:25,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:25,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:25,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:25,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:25,781 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:26,025 INFO L93 Difference]: Finished difference Result 120 states and 152 transitions. [2024-10-14 20:57:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:26,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-10-14 20:57:26,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:26,027 INFO L225 Difference]: With dead ends: 120 [2024-10-14 20:57:26,027 INFO L226 Difference]: Without dead ends: 113 [2024-10-14 20:57:26,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:26,029 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 34 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:26,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 71 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:26,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-14 20:57:26,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2024-10-14 20:57:26,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 81 states have (on average 1.5679012345679013) internal successors, (127), 100 states have internal predecessors, (127), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:57:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 139 transitions. [2024-10-14 20:57:26,045 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 139 transitions. Word has length 16 [2024-10-14 20:57:26,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:26,045 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 139 transitions. [2024-10-14 20:57:26,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:26,046 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 139 transitions. [2024-10-14 20:57:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 20:57:26,047 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:26,047 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:26,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 20:57:26,047 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:26,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:26,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1359565303, now seen corresponding path program 1 times [2024-10-14 20:57:26,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:26,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904850076] [2024-10-14 20:57:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:26,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:26,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:26,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:26,157 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:26,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:26,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904850076] [2024-10-14 20:57:26,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904850076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:26,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:26,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:26,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952275804] [2024-10-14 20:57:26,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:26,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:26,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:26,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:26,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:26,164 INFO L87 Difference]: Start difference. First operand 109 states and 139 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:26,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:26,277 INFO L93 Difference]: Finished difference Result 115 states and 140 transitions. [2024-10-14 20:57:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:26,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-10-14 20:57:26,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:26,279 INFO L225 Difference]: With dead ends: 115 [2024-10-14 20:57:26,279 INFO L226 Difference]: Without dead ends: 106 [2024-10-14 20:57:26,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:26,281 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 32 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:26,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 75 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:26,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-14 20:57:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-10-14 20:57:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 95 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:57:26,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 129 transitions. [2024-10-14 20:57:26,305 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 129 transitions. Word has length 17 [2024-10-14 20:57:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:26,305 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 129 transitions. [2024-10-14 20:57:26,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:26,306 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 129 transitions. [2024-10-14 20:57:26,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 20:57:26,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:26,306 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:26,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:57:26,307 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:26,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:26,307 INFO L85 PathProgramCache]: Analyzing trace with hash -803148513, now seen corresponding path program 1 times [2024-10-14 20:57:26,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:26,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289703717] [2024-10-14 20:57:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:26,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:26,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:26,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:57:26,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:26,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289703717] [2024-10-14 20:57:26,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289703717] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:26,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537816788] [2024-10-14 20:57:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:26,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:26,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:26,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:57:26,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:57:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:26,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:57:26,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:26,723 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:26,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537816788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:26,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:26,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:57:26,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102034581] [2024-10-14 20:57:26,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:26,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:26,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:26,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:26,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:26,727 INFO L87 Difference]: Start difference. First operand 104 states and 129 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:26,877 INFO L93 Difference]: Finished difference Result 107 states and 133 transitions. [2024-10-14 20:57:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:26,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-10-14 20:57:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:26,881 INFO L225 Difference]: With dead ends: 107 [2024-10-14 20:57:26,881 INFO L226 Difference]: Without dead ends: 106 [2024-10-14 20:57:26,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:57:26,882 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 72 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:26,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 60 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:26,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-14 20:57:26,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-10-14 20:57:26,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.5263157894736843) internal successors, (116), 95 states have internal predecessors, (116), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:57:26,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2024-10-14 20:57:26,898 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 18 [2024-10-14 20:57:26,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:26,899 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2024-10-14 20:57:26,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:26,899 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2024-10-14 20:57:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-14 20:57:26,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:26,900 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:26,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:27,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:27,101 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:27,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:27,102 INFO L85 PathProgramCache]: Analyzing trace with hash 872199929, now seen corresponding path program 1 times [2024-10-14 20:57:27,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:27,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49930576] [2024-10-14 20:57:27,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:27,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:27,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481417981] [2024-10-14 20:57:27,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:27,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:27,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:27,116 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) [2024-10-14 20:57:27,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:57:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:27,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:57:27,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:27,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:27,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:27,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49930576] [2024-10-14 20:57:27,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:27,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481417981] [2024-10-14 20:57:27,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481417981] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:27,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:27,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:27,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594415984] [2024-10-14 20:57:27,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:27,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:27,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:27,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:27,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:27,238 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:27,337 INFO L93 Difference]: Finished difference Result 105 states and 128 transitions. [2024-10-14 20:57:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:27,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-14 20:57:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:27,339 INFO L225 Difference]: With dead ends: 105 [2024-10-14 20:57:27,339 INFO L226 Difference]: Without dead ends: 104 [2024-10-14 20:57:27,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:57:27,341 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 65 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:27,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 65 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:27,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-14 20:57:27,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-14 20:57:27,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.513157894736842) internal successors, (115), 95 states have internal predecessors, (115), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:57:27,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 127 transitions. [2024-10-14 20:57:27,351 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 127 transitions. Word has length 19 [2024-10-14 20:57:27,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:27,351 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 127 transitions. [2024-10-14 20:57:27,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:57:27,352 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 127 transitions. [2024-10-14 20:57:27,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-14 20:57:27,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:27,352 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:27,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:27,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:27,553 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:27,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash 348287117, now seen corresponding path program 1 times [2024-10-14 20:57:27,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:27,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975841155] [2024-10-14 20:57:27,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:27,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:27,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:27,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:27,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:57:27,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:27,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975841155] [2024-10-14 20:57:27,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975841155] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:27,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210040470] [2024-10-14 20:57:27,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:27,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:27,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:27,675 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) [2024-10-14 20:57:27,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:57:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:27,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:57:27,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:27,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:57:27,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:57:27,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210040470] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:27,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:27,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-14 20:57:27,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762258697] [2024-10-14 20:57:27,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:27,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:57:27,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:27,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:57:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:27,865 INFO L87 Difference]: Start difference. First operand 104 states and 127 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:57:27,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:27,956 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2024-10-14 20:57:27,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:57:27,957 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2024-10-14 20:57:27,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:27,958 INFO L225 Difference]: With dead ends: 157 [2024-10-14 20:57:27,958 INFO L226 Difference]: Without dead ends: 155 [2024-10-14 20:57:27,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:57:27,959 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 118 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:27,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 172 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:27,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-10-14 20:57:27,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2024-10-14 20:57:27,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 115 states have (on average 1.5043478260869565) internal successors, (173), 134 states have internal predecessors, (173), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:27,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 189 transitions. [2024-10-14 20:57:27,970 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 189 transitions. Word has length 31 [2024-10-14 20:57:27,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:27,970 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 189 transitions. [2024-10-14 20:57:27,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:57:27,971 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 189 transitions. [2024-10-14 20:57:27,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-14 20:57:27,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:27,972 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:27,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:57:28,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:28,172 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:28,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:28,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2088001174, now seen corresponding path program 1 times [2024-10-14 20:57:28,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:28,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724255592] [2024-10-14 20:57:28,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:28,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:28,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:28,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:28,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:28,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:28,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:28,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724255592] [2024-10-14 20:57:28,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724255592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:28,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:28,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:28,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459873914] [2024-10-14 20:57:28,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:28,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:28,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:28,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:28,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:28,229 INFO L87 Difference]: Start difference. First operand 145 states and 189 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:57:28,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:28,273 INFO L93 Difference]: Finished difference Result 145 states and 189 transitions. [2024-10-14 20:57:28,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:28,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-10-14 20:57:28,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:28,275 INFO L225 Difference]: With dead ends: 145 [2024-10-14 20:57:28,275 INFO L226 Difference]: Without dead ends: 143 [2024-10-14 20:57:28,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:57:28,276 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:28,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 69 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:57:28,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-14 20:57:28,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-10-14 20:57:28,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 115 states have (on average 1.4608695652173913) internal successors, (168), 132 states have internal predecessors, (168), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:28,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 184 transitions. [2024-10-14 20:57:28,296 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 184 transitions. Word has length 32 [2024-10-14 20:57:28,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:28,296 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 184 transitions. [2024-10-14 20:57:28,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:57:28,297 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 184 transitions. [2024-10-14 20:57:28,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 20:57:28,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:28,298 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:28,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 20:57:28,299 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:28,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:28,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1400336030, now seen corresponding path program 1 times [2024-10-14 20:57:28,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:28,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807954514] [2024-10-14 20:57:28,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:28,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:28,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389753090] [2024-10-14 20:57:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:28,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:28,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:28,318 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) [2024-10-14 20:57:28,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:57:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:28,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:57:28,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:28,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:28,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:28,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807954514] [2024-10-14 20:57:28,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:28,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389753090] [2024-10-14 20:57:28,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389753090] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:28,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:28,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-14 20:57:28,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133638736] [2024-10-14 20:57:28,691 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:28,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:57:28,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:28,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:57:28,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:28,692 INFO L87 Difference]: Start difference. First operand 143 states and 184 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:57:28,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:28,813 INFO L93 Difference]: Finished difference Result 150 states and 187 transitions. [2024-10-14 20:57:28,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:57:28,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-10-14 20:57:28,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:28,814 INFO L225 Difference]: With dead ends: 150 [2024-10-14 20:57:28,814 INFO L226 Difference]: Without dead ends: 143 [2024-10-14 20:57:28,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:57:28,815 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 62 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:28,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 65 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:28,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-14 20:57:28,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2024-10-14 20:57:28,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 128 states have internal predecessors, (156), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:57:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 172 transitions. [2024-10-14 20:57:28,825 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 172 transitions. Word has length 34 [2024-10-14 20:57:28,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:28,826 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 172 transitions. [2024-10-14 20:57:28,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:57:28,826 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 172 transitions. [2024-10-14 20:57:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-14 20:57:28,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:28,827 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:28,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 20:57:29,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:29,032 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:29,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:29,032 INFO L85 PathProgramCache]: Analyzing trace with hash -460743922, now seen corresponding path program 1 times [2024-10-14 20:57:29,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:29,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048337321] [2024-10-14 20:57:29,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:29,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:29,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829732271] [2024-10-14 20:57:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:29,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:29,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:29,052 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) [2024-10-14 20:57:29,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:57:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:29,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:57:29,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:29,227 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:29,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:29,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:29,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048337321] [2024-10-14 20:57:29,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:29,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829732271] [2024-10-14 20:57:29,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829732271] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:29,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:29,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-14 20:57:29,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110128687] [2024-10-14 20:57:29,648 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:29,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:57:29,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:29,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:57:29,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:29,649 INFO L87 Difference]: Start difference. First operand 139 states and 172 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:57:29,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:29,814 INFO L93 Difference]: Finished difference Result 187 states and 230 transitions. [2024-10-14 20:57:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:57:29,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-10-14 20:57:29,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:29,816 INFO L225 Difference]: With dead ends: 187 [2024-10-14 20:57:29,816 INFO L226 Difference]: Without dead ends: 184 [2024-10-14 20:57:29,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:29,817 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 74 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:29,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 92 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-14 20:57:29,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 176. [2024-10-14 20:57:29,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 151 states have (on average 1.3311258278145695) internal successors, (201), 163 states have internal predecessors, (201), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:57:29,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 221 transitions. [2024-10-14 20:57:29,832 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 221 transitions. Word has length 35 [2024-10-14 20:57:29,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:29,832 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 221 transitions. [2024-10-14 20:57:29,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:57:29,833 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 221 transitions. [2024-10-14 20:57:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 20:57:29,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:29,834 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:29,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:30,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:30,037 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:30,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:30,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1463971986, now seen corresponding path program 1 times [2024-10-14 20:57:30,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:30,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701541209] [2024-10-14 20:57:30,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:30,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:30,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:30,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701541209] [2024-10-14 20:57:30,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701541209] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:30,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506316269] [2024-10-14 20:57:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:30,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:30,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:30,113 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) [2024-10-14 20:57:30,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:57:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:57:30,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:30,253 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:30,255 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:57:30,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506316269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:30,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:30,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-14 20:57:30,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570814044] [2024-10-14 20:57:30,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:30,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:57:30,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:30,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:57:30,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:57:30,257 INFO L87 Difference]: Start difference. First operand 176 states and 221 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:57:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:30,406 INFO L93 Difference]: Finished difference Result 176 states and 221 transitions. [2024-10-14 20:57:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:57:30,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-10-14 20:57:30,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:30,408 INFO L225 Difference]: With dead ends: 176 [2024-10-14 20:57:30,408 INFO L226 Difference]: Without dead ends: 174 [2024-10-14 20:57:30,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:57:30,409 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 25 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:30,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 61 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:30,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-14 20:57:30,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 171. [2024-10-14 20:57:30,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 148 states have (on average 1.3175675675675675) internal successors, (195), 158 states have internal predecessors, (195), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:57:30,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 215 transitions. [2024-10-14 20:57:30,418 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 215 transitions. Word has length 36 [2024-10-14 20:57:30,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:30,419 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 215 transitions. [2024-10-14 20:57:30,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:57:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 215 transitions. [2024-10-14 20:57:30,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:57:30,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:30,419 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:30,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:57:30,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:30,620 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:30,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:30,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1861508742, now seen corresponding path program 1 times [2024-10-14 20:57:30,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:30,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708503058] [2024-10-14 20:57:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:30,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,790 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:57:30,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:30,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708503058] [2024-10-14 20:57:30,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708503058] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:30,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865784015] [2024-10-14 20:57:30,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:30,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:30,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:30,793 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) [2024-10-14 20:57:30,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:57:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:30,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:57:30,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:30,930 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:31,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865784015] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:31,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:57:31,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2024-10-14 20:57:31,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477268505] [2024-10-14 20:57:31,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:31,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:57:31,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:31,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:57:31,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:57:31,041 INFO L87 Difference]: Start difference. First operand 171 states and 215 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-14 20:57:31,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:31,573 INFO L93 Difference]: Finished difference Result 183 states and 219 transitions. [2024-10-14 20:57:31,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 20:57:31,573 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 37 [2024-10-14 20:57:31,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:31,574 INFO L225 Difference]: With dead ends: 183 [2024-10-14 20:57:31,574 INFO L226 Difference]: Without dead ends: 168 [2024-10-14 20:57:31,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2024-10-14 20:57:31,576 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 130 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:31,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 101 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:57:31,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-14 20:57:31,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2024-10-14 20:57:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 140 states have (on average 1.25) internal successors, (175), 149 states have internal predecessors, (175), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:57:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 195 transitions. [2024-10-14 20:57:31,589 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 195 transitions. Word has length 37 [2024-10-14 20:57:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:31,589 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 195 transitions. [2024-10-14 20:57:31,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-14 20:57:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 195 transitions. [2024-10-14 20:57:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 20:57:31,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:31,590 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:31,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:31,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-14 20:57:31,791 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:31,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:31,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1872196208, now seen corresponding path program 1 times [2024-10-14 20:57:31,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:31,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630802811] [2024-10-14 20:57:31,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:31,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:31,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:31,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:31,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:31,847 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:31,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:31,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630802811] [2024-10-14 20:57:31,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630802811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:57:31,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:57:31,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:57:31,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929994914] [2024-10-14 20:57:31,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:57:31,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:57:31,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:31,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:57:31,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:31,849 INFO L87 Difference]: Start difference. First operand 162 states and 195 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (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) [2024-10-14 20:57:31,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:31,966 INFO L93 Difference]: Finished difference Result 163 states and 195 transitions. [2024-10-14 20:57:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:57:31,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (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 38 [2024-10-14 20:57:31,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:31,967 INFO L225 Difference]: With dead ends: 163 [2024-10-14 20:57:31,967 INFO L226 Difference]: Without dead ends: 162 [2024-10-14 20:57:31,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:57:31,968 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:31,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:31,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-14 20:57:31,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-14 20:57:31,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 149 states have internal predecessors, (171), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:57:31,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 191 transitions. [2024-10-14 20:57:31,978 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 191 transitions. Word has length 38 [2024-10-14 20:57:31,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:31,978 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 191 transitions. [2024-10-14 20:57:31,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (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) [2024-10-14 20:57:31,978 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 191 transitions. [2024-10-14 20:57:31,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 20:57:31,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:31,979 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:31,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 20:57:31,979 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:31,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:31,980 INFO L85 PathProgramCache]: Analyzing trace with hash 693347430, now seen corresponding path program 1 times [2024-10-14 20:57:31,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:31,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072303816] [2024-10-14 20:57:31,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:31,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:32,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:32,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:32,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:57:32,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:32,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072303816] [2024-10-14 20:57:32,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072303816] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:32,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710758675] [2024-10-14 20:57:32,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:32,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:32,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:32,138 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) [2024-10-14 20:57:32,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:57:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:32,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:57:32,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:57:32,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:32,729 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:57:32,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710758675] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:32,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:32,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-14 20:57:32,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484480277] [2024-10-14 20:57:32,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:32,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 20:57:32,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:32,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 20:57:32,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:57:32,731 INFO L87 Difference]: Start difference. First operand 162 states and 191 transitions. Second operand has 17 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:57:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:33,182 INFO L93 Difference]: Finished difference Result 163 states and 191 transitions. [2024-10-14 20:57:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 20:57:33,183 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-10-14 20:57:33,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:33,184 INFO L225 Difference]: With dead ends: 163 [2024-10-14 20:57:33,184 INFO L226 Difference]: Without dead ends: 160 [2024-10-14 20:57:33,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 68 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-10-14 20:57:33,185 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 121 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:33,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 131 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:57:33,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-10-14 20:57:33,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 137. [2024-10-14 20:57:33,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 119 states have (on average 1.1932773109243697) internal successors, (142), 125 states have internal predecessors, (142), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:57:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2024-10-14 20:57:33,196 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 38 [2024-10-14 20:57:33,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:33,196 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2024-10-14 20:57:33,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:57:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2024-10-14 20:57:33,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 20:57:33,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:33,198 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:33,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 20:57:33,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 20:57:33,402 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:33,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:33,402 INFO L85 PathProgramCache]: Analyzing trace with hash 18933906, now seen corresponding path program 1 times [2024-10-14 20:57:33,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:33,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489123637] [2024-10-14 20:57:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:33,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:33,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1952491080] [2024-10-14 20:57:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:33,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:33,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:33,414 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) [2024-10-14 20:57:33,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:57:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:33,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 20:57:33,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:33,623 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:33,624 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:57:33,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:33,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489123637] [2024-10-14 20:57:33,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:33,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952491080] [2024-10-14 20:57:33,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952491080] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:33,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:57:33,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-14 20:57:33,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576758584] [2024-10-14 20:57:33,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:33,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 20:57:33,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:33,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 20:57:33,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:57:33,728 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:57:33,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:33,984 INFO L93 Difference]: Finished difference Result 219 states and 257 transitions. [2024-10-14 20:57:33,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:57:33,985 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-10-14 20:57:33,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:33,986 INFO L225 Difference]: With dead ends: 219 [2024-10-14 20:57:33,986 INFO L226 Difference]: Without dead ends: 152 [2024-10-14 20:57:33,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-14 20:57:33,987 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 70 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:33,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 94 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-14 20:57:33,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-10-14 20:57:33,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 134 states have (on average 1.1417910447761195) internal successors, (153), 139 states have internal predecessors, (153), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:57:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2024-10-14 20:57:34,000 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 39 [2024-10-14 20:57:34,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:34,000 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2024-10-14 20:57:34,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:57:34,000 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2024-10-14 20:57:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 20:57:34,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:34,001 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 20:57:34,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:34,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 20:57:34,202 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:34,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:34,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1565427033, now seen corresponding path program 2 times [2024-10-14 20:57:34,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:34,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530899477] [2024-10-14 20:57:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:34,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:34,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382555964] [2024-10-14 20:57:34,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:57:34,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:34,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:34,220 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) [2024-10-14 20:57:34,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:57:34,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:57:34,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:34,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:57:34,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:34,394 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:57:34,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:34,711 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:57:34,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:34,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530899477] [2024-10-14 20:57:34,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:34,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382555964] [2024-10-14 20:57:34,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382555964] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:34,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:57:34,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-10-14 20:57:34,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126772035] [2024-10-14 20:57:34,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:34,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 20:57:34,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:34,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 20:57:34,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:57:34,714 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:57:35,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:35,430 INFO L93 Difference]: Finished difference Result 311 states and 365 transitions. [2024-10-14 20:57:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 20:57:35,430 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 55 [2024-10-14 20:57:35,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:35,432 INFO L225 Difference]: With dead ends: 311 [2024-10-14 20:57:35,432 INFO L226 Difference]: Without dead ends: 300 [2024-10-14 20:57:35,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:57:35,433 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 136 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:35,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 224 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:57:35,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-14 20:57:35,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 294. [2024-10-14 20:57:35,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 269 states have (on average 1.1449814126394051) internal successors, (308), 273 states have internal predecessors, (308), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-14 20:57:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 344 transitions. [2024-10-14 20:57:35,454 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 344 transitions. Word has length 55 [2024-10-14 20:57:35,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:35,454 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 344 transitions. [2024-10-14 20:57:35,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:57:35,454 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 344 transitions. [2024-10-14 20:57:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 20:57:35,455 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:35,455 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:35,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 20:57:35,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 20:57:35,656 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:35,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:35,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2133780327, now seen corresponding path program 1 times [2024-10-14 20:57:35,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:35,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095424421] [2024-10-14 20:57:35,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:35,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:35,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:35,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:35,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:35,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:57:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:35,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:57:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:57:35,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:35,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095424421] [2024-10-14 20:57:35,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095424421] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:35,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107637690] [2024-10-14 20:57:35,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:35,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:35,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:35,730 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) [2024-10-14 20:57:35,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:57:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:35,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:57:35,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:57:35,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:35,918 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:57:35,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107637690] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:35,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:35,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-10-14 20:57:35,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805904217] [2024-10-14 20:57:35,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:35,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:57:35,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:35,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:57:35,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:35,920 INFO L87 Difference]: Start difference. First operand 294 states and 344 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-14 20:57:36,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:36,062 INFO L93 Difference]: Finished difference Result 818 states and 1019 transitions. [2024-10-14 20:57:36,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:57:36,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 67 [2024-10-14 20:57:36,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:36,068 INFO L225 Difference]: With dead ends: 818 [2024-10-14 20:57:36,068 INFO L226 Difference]: Without dead ends: 816 [2024-10-14 20:57:36,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:36,069 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:36,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 121 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:36,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-10-14 20:57:36,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2024-10-14 20:57:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 758 states have (on average 1.1174142480211082) internal successors, (847), 761 states have internal predecessors, (847), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 20:57:36,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 951 transitions. [2024-10-14 20:57:36,123 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 951 transitions. Word has length 67 [2024-10-14 20:57:36,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:36,123 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 951 transitions. [2024-10-14 20:57:36,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-14 20:57:36,123 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 951 transitions. [2024-10-14 20:57:36,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 20:57:36,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:36,125 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:36,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:36,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-14 20:57:36,329 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:36,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash -385233554, now seen corresponding path program 1 times [2024-10-14 20:57:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:36,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868371913] [2024-10-14 20:57:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:36,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:36,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:36,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:36,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:36,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:57:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:36,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:57:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 20:57:36,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868371913] [2024-10-14 20:57:36,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868371913] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100439442] [2024-10-14 20:57:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:36,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:36,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:36,495 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) [2024-10-14 20:57:36,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 20:57:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:36,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 20:57:36,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:36,744 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-14 20:57:36,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-14 20:57:36,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100439442] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:36,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:36,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2024-10-14 20:57:36,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022972063] [2024-10-14 20:57:36,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:36,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 20:57:36,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 20:57:36,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:57:36,993 INFO L87 Difference]: Start difference. First operand 816 states and 951 transitions. Second operand has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-10-14 20:57:37,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:37,932 INFO L93 Difference]: Finished difference Result 828 states and 963 transitions. [2024-10-14 20:57:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-10-14 20:57:37,933 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 77 [2024-10-14 20:57:37,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:37,936 INFO L225 Difference]: With dead ends: 828 [2024-10-14 20:57:37,936 INFO L226 Difference]: Without dead ends: 827 [2024-10-14 20:57:37,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 145 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=675, Invalid=2187, Unknown=0, NotChecked=0, Total=2862 [2024-10-14 20:57:37,938 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 197 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:37,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 155 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:57:37,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-10-14 20:57:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 815. [2024-10-14 20:57:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 758 states have (on average 1.0699208443271768) internal successors, (811), 760 states have internal predecessors, (811), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 20:57:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 915 transitions. [2024-10-14 20:57:37,985 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 915 transitions. Word has length 77 [2024-10-14 20:57:37,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:37,985 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 915 transitions. [2024-10-14 20:57:37,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-10-14 20:57:37,986 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 915 transitions. [2024-10-14 20:57:37,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-14 20:57:37,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:37,988 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:38,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 20:57:38,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 20:57:38,188 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:38,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash -647130915, now seen corresponding path program 1 times [2024-10-14 20:57:38,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:38,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84191746] [2024-10-14 20:57:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:38,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:38,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:38,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:38,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:38,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:57:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:38,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:57:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:38,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 20:57:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:38,285 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 20:57:38,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:38,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84191746] [2024-10-14 20:57:38,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84191746] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:38,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545083342] [2024-10-14 20:57:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:38,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:38,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:38,288 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) [2024-10-14 20:57:38,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 20:57:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:38,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:57:38,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 66 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:57:38,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 20:57:38,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545083342] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:38,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:38,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-10-14 20:57:38,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882825999] [2024-10-14 20:57:38,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:38,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 20:57:38,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:38,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 20:57:38,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:57:38,531 INFO L87 Difference]: Start difference. First operand 815 states and 915 transitions. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-10-14 20:57:38,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:38,960 INFO L93 Difference]: Finished difference Result 1517 states and 1701 transitions. [2024-10-14 20:57:38,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-14 20:57:38,961 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 90 [2024-10-14 20:57:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:38,966 INFO L225 Difference]: With dead ends: 1517 [2024-10-14 20:57:38,966 INFO L226 Difference]: Without dead ends: 1277 [2024-10-14 20:57:38,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 183 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-10-14 20:57:38,970 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 80 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:38,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 210 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:57:38,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-10-14 20:57:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 986. [2024-10-14 20:57:39,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 919 states have (on average 1.0674646354733406) internal successors, (981), 921 states have internal predecessors, (981), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-14 20:57:39,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1105 transitions. [2024-10-14 20:57:39,035 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1105 transitions. Word has length 90 [2024-10-14 20:57:39,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:39,035 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1105 transitions. [2024-10-14 20:57:39,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-10-14 20:57:39,035 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1105 transitions. [2024-10-14 20:57:39,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-14 20:57:39,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:39,036 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:39,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-14 20:57:39,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:39,241 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:39,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:39,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1602868179, now seen corresponding path program 1 times [2024-10-14 20:57:39,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:39,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591520704] [2024-10-14 20:57:39,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:39,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:39,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:39,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:39,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:39,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:57:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:39,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:57:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:39,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 20:57:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 20:57:39,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:39,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591520704] [2024-10-14 20:57:39,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591520704] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:39,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467589005] [2024-10-14 20:57:39,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:39,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:39,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:39,343 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) [2024-10-14 20:57:39,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 20:57:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:39,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:57:39,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:39,469 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 20:57:39,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 20:57:39,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467589005] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:39,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:39,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 20:57:39,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802245077] [2024-10-14 20:57:39,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:39,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 20:57:39,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:39,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 20:57:39,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:57:39,586 INFO L87 Difference]: Start difference. First operand 986 states and 1105 transitions. Second operand has 11 states, 10 states have (on average 13.9) internal successors, (139), 11 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-14 20:57:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:39,769 INFO L93 Difference]: Finished difference Result 1593 states and 1789 transitions. [2024-10-14 20:57:39,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:57:39,769 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.9) internal successors, (139), 11 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 90 [2024-10-14 20:57:39,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:39,775 INFO L225 Difference]: With dead ends: 1593 [2024-10-14 20:57:39,775 INFO L226 Difference]: Without dead ends: 1592 [2024-10-14 20:57:39,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:57:39,777 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 88 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:39,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 183 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:39,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2024-10-14 20:57:39,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1584. [2024-10-14 20:57:39,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1479 states have (on average 1.066260987153482) internal successors, (1577), 1481 states have internal predecessors, (1577), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-10-14 20:57:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1777 transitions. [2024-10-14 20:57:39,863 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1777 transitions. Word has length 90 [2024-10-14 20:57:39,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:39,863 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 1777 transitions. [2024-10-14 20:57:39,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.9) internal successors, (139), 11 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-14 20:57:39,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1777 transitions. [2024-10-14 20:57:39,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 20:57:39,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:39,865 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:39,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:40,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:40,066 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:40,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash -321833708, now seen corresponding path program 1 times [2024-10-14 20:57:40,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:40,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524376874] [2024-10-14 20:57:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:40,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:57:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:57:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 20:57:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 20:57:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-14 20:57:40,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:40,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524376874] [2024-10-14 20:57:40,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524376874] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:40,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436552320] [2024-10-14 20:57:40,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:40,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:40,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:40,229 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) [2024-10-14 20:57:40,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 20:57:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:40,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:57:40,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-14 20:57:40,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:40,575 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-14 20:57:40,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436552320] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:40,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:40,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-10-14 20:57:40,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663038995] [2024-10-14 20:57:40,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:40,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:57:40,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:40,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:57:40,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:57:40,578 INFO L87 Difference]: Start difference. First operand 1584 states and 1777 transitions. Second operand has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-14 20:57:40,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:40,962 INFO L93 Difference]: Finished difference Result 3498 states and 3921 transitions. [2024-10-14 20:57:40,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:57:40,963 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 115 [2024-10-14 20:57:40,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:40,972 INFO L225 Difference]: With dead ends: 3498 [2024-10-14 20:57:40,972 INFO L226 Difference]: Without dead ends: 2594 [2024-10-14 20:57:40,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:57:40,975 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 30 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:40,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 380 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:40,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2024-10-14 20:57:41,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 1881. [2024-10-14 20:57:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1758 states have (on average 1.0591581342434584) internal successors, (1862), 1760 states have internal predecessors, (1862), 118 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-10-14 20:57:41,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2098 transitions. [2024-10-14 20:57:41,083 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2098 transitions. Word has length 115 [2024-10-14 20:57:41,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:41,084 INFO L471 AbstractCegarLoop]: Abstraction has 1881 states and 2098 transitions. [2024-10-14 20:57:41,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-14 20:57:41,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2098 transitions. [2024-10-14 20:57:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 20:57:41,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:41,086 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:41,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-14 20:57:41,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:41,286 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:41,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:41,287 INFO L85 PathProgramCache]: Analyzing trace with hash -897409821, now seen corresponding path program 2 times [2024-10-14 20:57:41,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:41,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827113134] [2024-10-14 20:57:41,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:41,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:41,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394975188] [2024-10-14 20:57:41,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:57:41,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:41,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:41,316 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) [2024-10-14 20:57:41,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 20:57:41,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:57:41,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:41,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:57:41,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-14 20:57:41,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:42,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:42,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827113134] [2024-10-14 20:57:42,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:42,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394975188] [2024-10-14 20:57:42,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394975188] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:42,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:42,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:57:42,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613627822] [2024-10-14 20:57:42,342 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:42,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:57:42,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:42,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:57:42,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:57:42,345 INFO L87 Difference]: Start difference. First operand 1881 states and 2098 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:57:42,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:42,579 INFO L93 Difference]: Finished difference Result 2108 states and 2347 transitions. [2024-10-14 20:57:42,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:57:42,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 135 [2024-10-14 20:57:42,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:42,587 INFO L225 Difference]: With dead ends: 2108 [2024-10-14 20:57:42,587 INFO L226 Difference]: Without dead ends: 2107 [2024-10-14 20:57:42,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:57:42,588 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 19 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:42,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 177 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:42,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2024-10-14 20:57:42,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1913. [2024-10-14 20:57:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1788 states have (on average 1.058165548098434) internal successors, (1892), 1790 states have internal predecessors, (1892), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-10-14 20:57:42,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2132 transitions. [2024-10-14 20:57:42,708 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2132 transitions. Word has length 135 [2024-10-14 20:57:42,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:42,708 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 2132 transitions. [2024-10-14 20:57:42,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:57:42,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2132 transitions. [2024-10-14 20:57:42,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 20:57:42,711 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:42,711 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:42,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:42,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:42,915 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:42,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash -62504019, now seen corresponding path program 3 times [2024-10-14 20:57:42,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:42,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798070510] [2024-10-14 20:57:42,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:42,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:42,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565055766] [2024-10-14 20:57:42,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:57:42,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:42,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:42,935 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) [2024-10-14 20:57:42,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-14 20:57:42,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-14 20:57:42,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:43,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:57:43,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:43,190 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-14 20:57:43,190 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:43,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:43,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798070510] [2024-10-14 20:57:43,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:43,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565055766] [2024-10-14 20:57:43,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565055766] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:43,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:43,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:57:43,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063699592] [2024-10-14 20:57:43,646 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:43,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:57:43,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:43,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:57:43,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:57:43,650 INFO L87 Difference]: Start difference. First operand 1913 states and 2132 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:57:44,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:44,003 INFO L93 Difference]: Finished difference Result 2961 states and 3296 transitions. [2024-10-14 20:57:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 20:57:44,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 135 [2024-10-14 20:57:44,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:44,011 INFO L225 Difference]: With dead ends: 2961 [2024-10-14 20:57:44,011 INFO L226 Difference]: Without dead ends: 2096 [2024-10-14 20:57:44,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-14 20:57:44,014 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 77 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:44,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 196 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:44,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2024-10-14 20:57:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1913. [2024-10-14 20:57:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1788 states have (on average 1.0564876957494407) internal successors, (1889), 1790 states have internal predecessors, (1889), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-10-14 20:57:44,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2129 transitions. [2024-10-14 20:57:44,123 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2129 transitions. Word has length 135 [2024-10-14 20:57:44,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:44,124 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 2129 transitions. [2024-10-14 20:57:44,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-14 20:57:44,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2129 transitions. [2024-10-14 20:57:44,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 20:57:44,126 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:44,126 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:44,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:44,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:44,330 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:44,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:44,330 INFO L85 PathProgramCache]: Analyzing trace with hash 877639691, now seen corresponding path program 3 times [2024-10-14 20:57:44,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:44,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020794699] [2024-10-14 20:57:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:44,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:44,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386764175] [2024-10-14 20:57:44,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:57:44,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:44,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:44,363 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) [2024-10-14 20:57:44,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-14 20:57:44,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-14 20:57:44,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:44,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 20:57:44,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:44,452 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 101 proven. 5 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-10-14 20:57:44,452 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:44,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:44,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020794699] [2024-10-14 20:57:44,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:44,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386764175] [2024-10-14 20:57:44,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386764175] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:44,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:44,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-14 20:57:44,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832370226] [2024-10-14 20:57:44,662 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:44,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:57:44,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:44,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:57:44,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:57:44,664 INFO L87 Difference]: Start difference. First operand 1913 states and 2129 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:57:44,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:44,788 INFO L93 Difference]: Finished difference Result 2483 states and 2762 transitions. [2024-10-14 20:57:44,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:57:44,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2024-10-14 20:57:44,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:44,794 INFO L225 Difference]: With dead ends: 2483 [2024-10-14 20:57:44,794 INFO L226 Difference]: Without dead ends: 1519 [2024-10-14 20:57:44,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:57:44,796 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:44,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 93 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:44,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2024-10-14 20:57:44,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1518. [2024-10-14 20:57:44,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1417 states have (on average 1.0515172900494) internal successors, (1490), 1419 states have internal predecessors, (1490), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-14 20:57:44,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1682 transitions. [2024-10-14 20:57:44,887 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1682 transitions. Word has length 135 [2024-10-14 20:57:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:44,887 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1682 transitions. [2024-10-14 20:57:44,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:57:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1682 transitions. [2024-10-14 20:57:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 20:57:44,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:44,890 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:44,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-14 20:57:45,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:45,090 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:45,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:45,091 INFO L85 PathProgramCache]: Analyzing trace with hash -272784989, now seen corresponding path program 2 times [2024-10-14 20:57:45,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:45,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612186295] [2024-10-14 20:57:45,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:45,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:57:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:57:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 20:57:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 20:57:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 20:57:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 20:57:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-14 20:57:45,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:45,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612186295] [2024-10-14 20:57:45,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612186295] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:45,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212479198] [2024-10-14 20:57:45,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:57:45,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:45,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:45,259 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) [2024-10-14 20:57:45,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-14 20:57:45,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:57:45,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:45,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 20:57:45,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:45,443 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-14 20:57:45,443 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-14 20:57:45,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212479198] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:45,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:45,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-10-14 20:57:45,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337926495] [2024-10-14 20:57:45,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:45,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 20:57:45,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:45,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 20:57:45,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:57:45,634 INFO L87 Difference]: Start difference. First operand 1518 states and 1682 transitions. Second operand has 17 states, 16 states have (on average 13.9375) internal successors, (223), 17 states have internal predecessors, (223), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-14 20:57:45,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:45,847 INFO L93 Difference]: Finished difference Result 2799 states and 3202 transitions. [2024-10-14 20:57:45,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 20:57:45,847 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.9375) internal successors, (223), 17 states have internal predecessors, (223), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 147 [2024-10-14 20:57:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:45,856 INFO L225 Difference]: With dead ends: 2799 [2024-10-14 20:57:45,856 INFO L226 Difference]: Without dead ends: 2798 [2024-10-14 20:57:45,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:57:45,857 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 17 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:45,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 176 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:57:45,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-10-14 20:57:45,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-10-14 20:57:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2617 states have (on average 1.0584638899503247) internal successors, (2770), 2619 states have internal predecessors, (2770), 176 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (176), 176 states have call predecessors, (176), 176 states have call successors, (176) [2024-10-14 20:57:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3122 transitions. [2024-10-14 20:57:46,007 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3122 transitions. Word has length 147 [2024-10-14 20:57:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:46,007 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 3122 transitions. [2024-10-14 20:57:46,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.9375) internal successors, (223), 17 states have internal predecessors, (223), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-14 20:57:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3122 transitions. [2024-10-14 20:57:46,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 20:57:46,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:46,010 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:46,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-14 20:57:46,213 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,SelfDestructingSolverStorable24 [2024-10-14 20:57:46,214 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:46,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:46,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1350152142, now seen corresponding path program 4 times [2024-10-14 20:57:46,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:46,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830590708] [2024-10-14 20:57:46,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:46,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:57:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:57:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 20:57:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 20:57:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 20:57:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 20:57:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:46,394 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-14 20:57:46,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:46,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830590708] [2024-10-14 20:57:46,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830590708] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:46,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294542259] [2024-10-14 20:57:46,395 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:57:46,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:46,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:46,396 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) [2024-10-14 20:57:46,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-14 20:57:46,458 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:57:46,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:46,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:57:46,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-14 20:57:46,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-14 20:57:46,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294542259] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:46,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:46,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-10-14 20:57:46,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9619866] [2024-10-14 20:57:46,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:46,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 20:57:46,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:46,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 20:57:46,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:57:46,837 INFO L87 Difference]: Start difference. First operand 2798 states and 3122 transitions. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-14 20:57:47,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:47,454 INFO L93 Difference]: Finished difference Result 6157 states and 6882 transitions. [2024-10-14 20:57:47,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 20:57:47,455 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 155 [2024-10-14 20:57:47,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:47,468 INFO L225 Difference]: With dead ends: 6157 [2024-10-14 20:57:47,469 INFO L226 Difference]: Without dead ends: 4475 [2024-10-14 20:57:47,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 316 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-10-14 20:57:47,472 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 25 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:47,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 506 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:57:47,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2024-10-14 20:57:47,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 3136. [2024-10-14 20:57:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 2934 states have (on average 1.0541922290388548) internal successors, (3093), 2936 states have internal predecessors, (3093), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2024-10-14 20:57:47,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 3487 transitions. [2024-10-14 20:57:47,675 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 3487 transitions. Word has length 155 [2024-10-14 20:57:47,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:47,676 INFO L471 AbstractCegarLoop]: Abstraction has 3136 states and 3487 transitions. [2024-10-14 20:57:47,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-14 20:57:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 3487 transitions. [2024-10-14 20:57:47,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-14 20:57:47,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:47,679 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:47,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:47,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-14 20:57:47,880 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:47,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:47,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1131873023, now seen corresponding path program 5 times [2024-10-14 20:57:47,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:47,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823801243] [2024-10-14 20:57:47,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:47,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:47,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262683107] [2024-10-14 20:57:47,907 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 20:57:47,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:47,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:47,911 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) [2024-10-14 20:57:47,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-14 20:57:47,983 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-10-14 20:57:47,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:47,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-14 20:57:47,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:48,574 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 12 proven. 433 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-10-14 20:57:48,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:48,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:48,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823801243] [2024-10-14 20:57:48,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:48,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262683107] [2024-10-14 20:57:48,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262683107] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:48,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:48,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-10-14 20:57:48,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386158721] [2024-10-14 20:57:48,931 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:48,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 20:57:48,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:48,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 20:57:48,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2024-10-14 20:57:48,932 INFO L87 Difference]: Start difference. First operand 3136 states and 3487 transitions. Second operand has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 20 states have internal predecessors, (134), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-14 20:57:49,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:49,868 INFO L93 Difference]: Finished difference Result 5299 states and 5897 transitions. [2024-10-14 20:57:49,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 20:57:49,869 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 20 states have internal predecessors, (134), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 175 [2024-10-14 20:57:49,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:49,881 INFO L225 Difference]: With dead ends: 5299 [2024-10-14 20:57:49,881 INFO L226 Difference]: Without dead ends: 3442 [2024-10-14 20:57:49,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-10-14 20:57:49,886 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:49,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 502 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:57:49,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2024-10-14 20:57:50,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3200. [2024-10-14 20:57:50,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 2994 states have (on average 1.0531062124248498) internal successors, (3153), 2996 states have internal predecessors, (3153), 201 states have call successors, (201), 2 states have call predecessors, (201), 2 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-10-14 20:57:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 3555 transitions. [2024-10-14 20:57:50,091 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 3555 transitions. Word has length 175 [2024-10-14 20:57:50,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:50,091 INFO L471 AbstractCegarLoop]: Abstraction has 3200 states and 3555 transitions. [2024-10-14 20:57:50,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 20 states have internal predecessors, (134), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-14 20:57:50,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 3555 transitions. [2024-10-14 20:57:50,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-14 20:57:50,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:50,096 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:50,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-10-14 20:57:50,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-14 20:57:50,297 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:50,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:50,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1708308629, now seen corresponding path program 6 times [2024-10-14 20:57:50,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:50,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102785943] [2024-10-14 20:57:50,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:50,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:50,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820289235] [2024-10-14 20:57:50,324 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 20:57:50,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:50,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:50,326 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) [2024-10-14 20:57:50,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-14 20:57:50,407 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-10-14 20:57:50,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:50,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 20:57:50,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:51,197 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 24 proven. 404 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-14 20:57:51,197 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:51,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:51,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102785943] [2024-10-14 20:57:51,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:57:51,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820289235] [2024-10-14 20:57:51,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820289235] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:51,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:57:51,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-10-14 20:57:51,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819087191] [2024-10-14 20:57:51,548 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:51,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 20:57:51,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:51,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 20:57:51,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:57:51,549 INFO L87 Difference]: Start difference. First operand 3200 states and 3555 transitions. Second operand has 16 states, 15 states have (on average 8.066666666666666) internal successors, (121), 16 states have internal predecessors, (121), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-14 20:57:52,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:52,295 INFO L93 Difference]: Finished difference Result 3701 states and 4112 transitions. [2024-10-14 20:57:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 20:57:52,296 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.066666666666666) internal successors, (121), 16 states have internal predecessors, (121), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) Word has length 175 [2024-10-14 20:57:52,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:52,319 INFO L225 Difference]: With dead ends: 3701 [2024-10-14 20:57:52,319 INFO L226 Difference]: Without dead ends: 3699 [2024-10-14 20:57:52,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2024-10-14 20:57:52,321 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 54 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:52,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 417 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:57:52,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2024-10-14 20:57:52,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3246. [2024-10-14 20:57:52,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3038 states have (on average 1.0526662277814351) internal successors, (3198), 3040 states have internal predecessors, (3198), 203 states have call successors, (203), 2 states have call predecessors, (203), 2 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2024-10-14 20:57:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 3604 transitions. [2024-10-14 20:57:52,532 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 3604 transitions. Word has length 175 [2024-10-14 20:57:52,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:52,532 INFO L471 AbstractCegarLoop]: Abstraction has 3246 states and 3604 transitions. [2024-10-14 20:57:52,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.066666666666666) internal successors, (121), 16 states have internal predecessors, (121), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-14 20:57:52,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 3604 transitions. [2024-10-14 20:57:52,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-10-14 20:57:52,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:52,535 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:52,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:52,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:52,736 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:52,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:52,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1824792118, now seen corresponding path program 2 times [2024-10-14 20:57:52,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:52,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458000249] [2024-10-14 20:57:52,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:52,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:57:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:57:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 20:57:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 20:57:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 20:57:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 20:57:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 20:57:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 20:57:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-14 20:57:52,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:52,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458000249] [2024-10-14 20:57:52,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458000249] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600884149] [2024-10-14 20:57:52,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:57:52,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:52,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:52,975 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) [2024-10-14 20:57:52,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-14 20:57:53,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:57:53,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:53,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:57:53,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:53,203 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-14 20:57:53,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-14 20:57:53,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600884149] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:53,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:53,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-14 20:57:53,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966694264] [2024-10-14 20:57:53,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:53,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 20:57:53,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:53,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 20:57:53,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-14 20:57:53,513 INFO L87 Difference]: Start difference. First operand 3246 states and 3604 transitions. Second operand has 21 states, 20 states have (on average 14.45) internal successors, (289), 21 states have internal predecessors, (289), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-10-14 20:57:53,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:53,925 INFO L93 Difference]: Finished difference Result 6615 states and 7374 transitions. [2024-10-14 20:57:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 20:57:53,925 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.45) internal successors, (289), 21 states have internal predecessors, (289), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 190 [2024-10-14 20:57:53,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:53,941 INFO L225 Difference]: With dead ends: 6615 [2024-10-14 20:57:53,941 INFO L226 Difference]: Without dead ends: 6614 [2024-10-14 20:57:53,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-14 20:57:53,943 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 257 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:53,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 320 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:57:53,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6614 states. [2024-10-14 20:57:54,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6614 to 6596. [2024-10-14 20:57:54,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6596 states, 6178 states have (on average 1.053415344771771) internal successors, (6508), 6180 states have internal predecessors, (6508), 413 states have call successors, (413), 2 states have call predecessors, (413), 2 states have return successors, (413), 413 states have call predecessors, (413), 413 states have call successors, (413) [2024-10-14 20:57:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6596 states to 6596 states and 7334 transitions. [2024-10-14 20:57:54,322 INFO L78 Accepts]: Start accepts. Automaton has 6596 states and 7334 transitions. Word has length 190 [2024-10-14 20:57:54,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:54,322 INFO L471 AbstractCegarLoop]: Abstraction has 6596 states and 7334 transitions. [2024-10-14 20:57:54,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.45) internal successors, (289), 21 states have internal predecessors, (289), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-10-14 20:57:54,323 INFO L276 IsEmpty]: Start isEmpty. Operand 6596 states and 7334 transitions. [2024-10-14 20:57:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-10-14 20:57:54,325 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:54,325 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:54,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-10-14 20:57:54,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-14 20:57:54,530 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:54,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:54,530 INFO L85 PathProgramCache]: Analyzing trace with hash -2046102192, now seen corresponding path program 7 times [2024-10-14 20:57:54,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:54,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273387460] [2024-10-14 20:57:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:54,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:57:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:57:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:57:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:57:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:57:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 20:57:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 20:57:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 20:57:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 20:57:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 20:57:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 20:57:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 135 proven. 412 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-14 20:57:54,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:57:54,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273387460] [2024-10-14 20:57:54,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273387460] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:57:54,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029612157] [2024-10-14 20:57:54,780 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-14 20:57:54,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:54,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:54,782 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) [2024-10-14 20:57:54,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-14 20:57:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:57:54,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:57:54,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-14 20:57:55,141 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:57:55,403 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-14 20:57:55,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029612157] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:57:55,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:57:55,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-10-14 20:57:55,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053595788] [2024-10-14 20:57:55,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:57:55,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 20:57:55,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:57:55,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 20:57:55,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-14 20:57:55,405 INFO L87 Difference]: Start difference. First operand 6596 states and 7334 transitions. Second operand has 18 states, 18 states have (on average 13.055555555555555) internal successors, (235), 18 states have internal predecessors, (235), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-14 20:57:56,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:57:56,297 INFO L93 Difference]: Finished difference Result 14760 states and 16447 transitions. [2024-10-14 20:57:56,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 20:57:56,298 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.055555555555555) internal successors, (235), 18 states have internal predecessors, (235), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 195 [2024-10-14 20:57:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:57:56,321 INFO L225 Difference]: With dead ends: 14760 [2024-10-14 20:57:56,321 INFO L226 Difference]: Without dead ends: 10688 [2024-10-14 20:57:56,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 397 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-10-14 20:57:56,331 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 25 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:57:56,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 570 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:57:56,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2024-10-14 20:57:56,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 7709. [2024-10-14 20:57:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7709 states, 7222 states have (on average 1.048047632234838) internal successors, (7569), 7224 states have internal predecessors, (7569), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2024-10-14 20:57:56,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7709 states to 7709 states and 8533 transitions. [2024-10-14 20:57:56,761 INFO L78 Accepts]: Start accepts. Automaton has 7709 states and 8533 transitions. Word has length 195 [2024-10-14 20:57:56,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:57:56,762 INFO L471 AbstractCegarLoop]: Abstraction has 7709 states and 8533 transitions. [2024-10-14 20:57:56,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.055555555555555) internal successors, (235), 18 states have internal predecessors, (235), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-14 20:57:56,762 INFO L276 IsEmpty]: Start isEmpty. Operand 7709 states and 8533 transitions. [2024-10-14 20:57:56,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-10-14 20:57:56,764 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:57:56,765 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:57:56,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-14 20:57:56,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:56,969 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:57:56,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:57:56,969 INFO L85 PathProgramCache]: Analyzing trace with hash -40826342, now seen corresponding path program 8 times [2024-10-14 20:57:56,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:57:56,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341752283] [2024-10-14 20:57:56,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:57:56,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:57:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:57:56,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993527695] [2024-10-14 20:57:56,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:57:56,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:57:56,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:57:56,992 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) [2024-10-14 20:57:56,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-14 20:57:57,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:57:57,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:57:57,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 20:57:57,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:57:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-10-14 20:57:57,497 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:05,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:05,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341752283] [2024-10-14 20:58:05,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:05,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993527695] [2024-10-14 20:58:05,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993527695] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:05,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:05,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-14 20:58:05,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478467372] [2024-10-14 20:58:05,562 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:05,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:58:05,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:05,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:58:05,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=130, Unknown=2, NotChecked=0, Total=182 [2024-10-14 20:58:05,563 INFO L87 Difference]: Start difference. First operand 7709 states and 8533 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-14 20:58:06,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:06,056 INFO L93 Difference]: Finished difference Result 8316 states and 9200 transitions. [2024-10-14 20:58:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:58:06,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 195 [2024-10-14 20:58:06,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:06,071 INFO L225 Difference]: With dead ends: 8316 [2024-10-14 20:58:06,071 INFO L226 Difference]: Without dead ends: 8315 [2024-10-14 20:58:06,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=50, Invalid=130, Unknown=2, NotChecked=0, Total=182 [2024-10-14 20:58:06,073 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 20 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:06,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 338 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:58:06,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8315 states. [2024-10-14 20:58:06,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8315 to 8019. [2024-10-14 20:58:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8019 states, 7513 states have (on average 1.0476507387195528) internal successors, (7871), 7515 states have internal predecessors, (7871), 501 states have call successors, (501), 2 states have call predecessors, (501), 2 states have return successors, (501), 501 states have call predecessors, (501), 501 states have call successors, (501) [2024-10-14 20:58:06,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8019 states to 8019 states and 8873 transitions. [2024-10-14 20:58:06,605 INFO L78 Accepts]: Start accepts. Automaton has 8019 states and 8873 transitions. Word has length 195 [2024-10-14 20:58:06,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:06,606 INFO L471 AbstractCegarLoop]: Abstraction has 8019 states and 8873 transitions. [2024-10-14 20:58:06,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-14 20:58:06,607 INFO L276 IsEmpty]: Start isEmpty. Operand 8019 states and 8873 transitions. [2024-10-14 20:58:06,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-10-14 20:58:06,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:06,610 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:06,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:06,813 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,SelfDestructingSolverStorable30 [2024-10-14 20:58:06,814 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:58:06,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:06,814 INFO L85 PathProgramCache]: Analyzing trace with hash 959833887, now seen corresponding path program 9 times [2024-10-14 20:58:06,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:06,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320523386] [2024-10-14 20:58:06,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:06,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:06,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480673496] [2024-10-14 20:58:06,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:58:06,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:06,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:06,842 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) [2024-10-14 20:58:06,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-14 20:58:06,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-14 20:58:06,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:58:06,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 20:58:06,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-10-14 20:58:07,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:07,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:07,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320523386] [2024-10-14 20:58:07,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:07,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480673496] [2024-10-14 20:58:07,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480673496] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:07,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:07,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-14 20:58:07,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22641309] [2024-10-14 20:58:07,806 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:07,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 20:58:07,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:07,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 20:58:07,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:58:07,807 INFO L87 Difference]: Start difference. First operand 8019 states and 8873 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-14 20:58:08,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:08,520 INFO L93 Difference]: Finished difference Result 12814 states and 14201 transitions. [2024-10-14 20:58:08,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 20:58:08,520 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 215 [2024-10-14 20:58:08,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:08,539 INFO L225 Difference]: With dead ends: 12814 [2024-10-14 20:58:08,539 INFO L226 Difference]: Without dead ends: 8583 [2024-10-14 20:58:08,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-10-14 20:58:08,549 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 132 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:08,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 453 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:58:08,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8583 states. [2024-10-14 20:58:09,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8583 to 8106. [2024-10-14 20:58:09,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8106 states, 7595 states have (on average 1.0471362738643846) internal successors, (7953), 7597 states have internal predecessors, (7953), 506 states have call successors, (506), 2 states have call predecessors, (506), 2 states have return successors, (506), 506 states have call predecessors, (506), 506 states have call successors, (506) [2024-10-14 20:58:09,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8106 states to 8106 states and 8965 transitions. [2024-10-14 20:58:09,037 INFO L78 Accepts]: Start accepts. Automaton has 8106 states and 8965 transitions. Word has length 215 [2024-10-14 20:58:09,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:09,040 INFO L471 AbstractCegarLoop]: Abstraction has 8106 states and 8965 transitions. [2024-10-14 20:58:09,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-14 20:58:09,040 INFO L276 IsEmpty]: Start isEmpty. Operand 8106 states and 8965 transitions. [2024-10-14 20:58:09,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-10-14 20:58:09,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:09,043 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:09,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:09,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:09,244 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:58:09,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1476535677, now seen corresponding path program 10 times [2024-10-14 20:58:09,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:09,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341669790] [2024-10-14 20:58:09,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:09,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:09,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478305677] [2024-10-14 20:58:09,270 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:58:09,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:09,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:09,272 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) [2024-10-14 20:58:09,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-14 20:58:09,377 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:58:09,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:58:09,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-14 20:58:09,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 12 proven. 602 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-14 20:58:09,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:10,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:10,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341669790] [2024-10-14 20:58:10,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:10,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478305677] [2024-10-14 20:58:10,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478305677] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:10,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:10,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-14 20:58:10,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411394280] [2024-10-14 20:58:10,041 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:10,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:58:10,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:10,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:58:10,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:58:10,043 INFO L87 Difference]: Start difference. First operand 8106 states and 8965 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-14 20:58:10,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:10,809 INFO L93 Difference]: Finished difference Result 8796 states and 9725 transitions. [2024-10-14 20:58:10,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-14 20:58:10,809 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 215 [2024-10-14 20:58:10,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:10,828 INFO L225 Difference]: With dead ends: 8796 [2024-10-14 20:58:10,829 INFO L226 Difference]: Without dead ends: 8795 [2024-10-14 20:58:10,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2024-10-14 20:58:10,833 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 74 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:10,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 343 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:58:10,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8795 states. [2024-10-14 20:58:11,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8795 to 8457. [2024-10-14 20:58:11,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8457 states, 7924 states have (on average 1.046693589096416) internal successors, (8294), 7926 states have internal predecessors, (8294), 528 states have call successors, (528), 2 states have call predecessors, (528), 2 states have return successors, (528), 528 states have call predecessors, (528), 528 states have call successors, (528) [2024-10-14 20:58:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8457 states to 8457 states and 9350 transitions. [2024-10-14 20:58:11,432 INFO L78 Accepts]: Start accepts. Automaton has 8457 states and 9350 transitions. Word has length 215 [2024-10-14 20:58:11,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:11,433 INFO L471 AbstractCegarLoop]: Abstraction has 8457 states and 9350 transitions. [2024-10-14 20:58:11,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-14 20:58:11,433 INFO L276 IsEmpty]: Start isEmpty. Operand 8457 states and 9350 transitions. [2024-10-14 20:58:11,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-14 20:58:11,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:11,437 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:11,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:11,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:11,641 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:58:11,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:11,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1980277955, now seen corresponding path program 11 times [2024-10-14 20:58:11,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:11,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390400067] [2024-10-14 20:58:11,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:11,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:11,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371599997] [2024-10-14 20:58:11,669 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 20:58:11,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:11,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:11,675 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:11,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-14 20:58:11,784 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-10-14 20:58:11,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:58:11,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-10-14 20:58:11,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 18 proven. 1027 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 20:58:12,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:13,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:13,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390400067] [2024-10-14 20:58:13,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:13,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371599997] [2024-10-14 20:58:13,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371599997] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:13,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:13,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-10-14 20:58:13,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257130784] [2024-10-14 20:58:13,023 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:13,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-14 20:58:13,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:13,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-14 20:58:13,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2024-10-14 20:58:13,024 INFO L87 Difference]: Start difference. First operand 8457 states and 9350 transitions. Second operand has 26 states, 25 states have (on average 7.76) internal successors, (194), 26 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-14 20:58:14,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:14,455 INFO L93 Difference]: Finished difference Result 13017 states and 14418 transitions. [2024-10-14 20:58:14,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-14 20:58:14,456 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.76) internal successors, (194), 26 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 255 [2024-10-14 20:58:14,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:14,472 INFO L225 Difference]: With dead ends: 13017 [2024-10-14 20:58:14,472 INFO L226 Difference]: Without dead ends: 8795 [2024-10-14 20:58:14,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2024-10-14 20:58:14,483 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 23 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:14,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 955 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 20:58:14,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8795 states. [2024-10-14 20:58:14,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8795 to 8477. [2024-10-14 20:58:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8477 states, 7943 states have (on average 1.0465818960090645) internal successors, (8313), 7945 states have internal predecessors, (8313), 529 states have call successors, (529), 2 states have call predecessors, (529), 2 states have return successors, (529), 529 states have call predecessors, (529), 529 states have call successors, (529) [2024-10-14 20:58:14,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8477 states to 8477 states and 9371 transitions. [2024-10-14 20:58:14,972 INFO L78 Accepts]: Start accepts. Automaton has 8477 states and 9371 transitions. Word has length 255 [2024-10-14 20:58:14,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:14,972 INFO L471 AbstractCegarLoop]: Abstraction has 8477 states and 9371 transitions. [2024-10-14 20:58:14,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.76) internal successors, (194), 26 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-14 20:58:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand 8477 states and 9371 transitions. [2024-10-14 20:58:14,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-14 20:58:14,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:14,977 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:14,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:15,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:15,178 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:58:15,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:15,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1511663367, now seen corresponding path program 12 times [2024-10-14 20:58:15,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:15,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130410436] [2024-10-14 20:58:15,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:15,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:15,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490827608] [2024-10-14 20:58:15,218 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 20:58:15,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:15,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:15,220 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:15,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-14 20:58:15,371 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-10-14 20:58:15,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:58:15,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-14 20:58:15,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 57 proven. 960 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-14 20:58:16,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:17,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:17,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130410436] [2024-10-14 20:58:17,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:17,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490827608] [2024-10-14 20:58:17,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490827608] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:17,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:17,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-10-14 20:58:17,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628403760] [2024-10-14 20:58:17,448 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:17,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-14 20:58:17,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:17,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-14 20:58:17,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 20:58:17,450 INFO L87 Difference]: Start difference. First operand 8477 states and 9371 transitions. Second operand has 29 states, 28 states have (on average 5.857142857142857) internal successors, (164), 29 states have internal predecessors, (164), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-14 20:58:23,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:23,766 INFO L93 Difference]: Finished difference Result 12722 states and 14093 transitions. [2024-10-14 20:58:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-14 20:58:23,767 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.857142857142857) internal successors, (164), 29 states have internal predecessors, (164), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) Word has length 255 [2024-10-14 20:58:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:23,781 INFO L225 Difference]: With dead ends: 12722 [2024-10-14 20:58:23,782 INFO L226 Difference]: Without dead ends: 8714 [2024-10-14 20:58:23,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=344, Invalid=2518, Unknown=0, NotChecked=0, Total=2862 [2024-10-14 20:58:23,790 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 232 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 3729 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 3762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:23,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 841 Invalid, 3762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3729 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-10-14 20:58:23,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8714 states. [2024-10-14 20:58:24,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8714 to 8470. [2024-10-14 20:58:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 7936 states have (on average 1.0463709677419355) internal successors, (8304), 7938 states have internal predecessors, (8304), 529 states have call successors, (529), 2 states have call predecessors, (529), 2 states have return successors, (529), 529 states have call predecessors, (529), 529 states have call successors, (529) [2024-10-14 20:58:24,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 9362 transitions. [2024-10-14 20:58:24,249 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 9362 transitions. Word has length 255 [2024-10-14 20:58:24,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:24,250 INFO L471 AbstractCegarLoop]: Abstraction has 8470 states and 9362 transitions. [2024-10-14 20:58:24,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.857142857142857) internal successors, (164), 29 states have internal predecessors, (164), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-14 20:58:24,250 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 9362 transitions. [2024-10-14 20:58:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-14 20:58:24,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:24,254 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:24,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:24,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-10-14 20:58:24,459 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:58:24,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:24,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1673825583, now seen corresponding path program 13 times [2024-10-14 20:58:24,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:24,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472524967] [2024-10-14 20:58:24,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:24,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:24,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453023959] [2024-10-14 20:58:24,488 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-14 20:58:24,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:24,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:24,491 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:24,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-14 20:58:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:24,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-10-14 20:58:24,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:25,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 63 proven. 982 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-10-14 20:58:25,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:26,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:26,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472524967] [2024-10-14 20:58:26,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:26,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453023959] [2024-10-14 20:58:26,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453023959] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:26,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:26,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-10-14 20:58:26,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448846045] [2024-10-14 20:58:26,260 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:26,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-14 20:58:26,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:26,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-14 20:58:26,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1094, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 20:58:26,262 INFO L87 Difference]: Start difference. First operand 8470 states and 9362 transitions. Second operand has 32 states, 31 states have (on average 6.258064516129032) internal successors, (194), 32 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-14 20:58:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:28,565 INFO L93 Difference]: Finished difference Result 13520 states and 14959 transitions. [2024-10-14 20:58:28,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-14 20:58:28,565 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.258064516129032) internal successors, (194), 32 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 255 [2024-10-14 20:58:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:28,582 INFO L225 Difference]: With dead ends: 13520 [2024-10-14 20:58:28,582 INFO L226 Difference]: Without dead ends: 8167 [2024-10-14 20:58:28,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=226, Invalid=2530, Unknown=0, NotChecked=0, Total=2756 [2024-10-14 20:58:28,592 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 128 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 4989 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 5005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:28,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1022 Invalid, 5005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4989 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 20:58:28,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8167 states. [2024-10-14 20:58:29,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8167 to 7969. [2024-10-14 20:58:29,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7969 states, 7466 states have (on average 1.0455397803375301) internal successors, (7806), 7468 states have internal predecessors, (7806), 498 states have call successors, (498), 2 states have call predecessors, (498), 2 states have return successors, (498), 498 states have call predecessors, (498), 498 states have call successors, (498) [2024-10-14 20:58:29,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7969 states to 7969 states and 8802 transitions. [2024-10-14 20:58:29,074 INFO L78 Accepts]: Start accepts. Automaton has 7969 states and 8802 transitions. Word has length 255 [2024-10-14 20:58:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:29,075 INFO L471 AbstractCegarLoop]: Abstraction has 7969 states and 8802 transitions. [2024-10-14 20:58:29,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.258064516129032) internal successors, (194), 32 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-14 20:58:29,075 INFO L276 IsEmpty]: Start isEmpty. Operand 7969 states and 8802 transitions. [2024-10-14 20:58:29,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-14 20:58:29,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:29,079 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:29,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-10-14 20:58:29,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-10-14 20:58:29,284 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:58:29,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:29,284 INFO L85 PathProgramCache]: Analyzing trace with hash 847022693, now seen corresponding path program 14 times [2024-10-14 20:58:29,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:29,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783205092] [2024-10-14 20:58:29,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:29,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:29,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60039769] [2024-10-14 20:58:29,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:58:29,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:29,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:29,318 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:29,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-14 20:58:29,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:58:29,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:58:29,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-14 20:58:29,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-10-14 20:58:29,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:31,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:31,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783205092] [2024-10-14 20:58:31,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:31,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60039769] [2024-10-14 20:58:31,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60039769] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:31,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:31,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-14 20:58:31,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437371525] [2024-10-14 20:58:31,136 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:31,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 20:58:31,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:31,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 20:58:31,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:58:31,137 INFO L87 Difference]: Start difference. First operand 7969 states and 8802 transitions. Second operand has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-14 20:58:31,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:31,674 INFO L93 Difference]: Finished difference Result 8660 states and 9562 transitions. [2024-10-14 20:58:31,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 20:58:31,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 255 [2024-10-14 20:58:31,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:31,689 INFO L225 Difference]: With dead ends: 8660 [2024-10-14 20:58:31,689 INFO L226 Difference]: Without dead ends: 8659 [2024-10-14 20:58:31,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:58:31,694 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 20 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:31,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 686 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:58:31,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8659 states. [2024-10-14 20:58:32,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8659 to 8320. [2024-10-14 20:58:32,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8320 states, 7795 states have (on average 1.045157152020526) internal successors, (8147), 7797 states have internal predecessors, (8147), 520 states have call successors, (520), 2 states have call predecessors, (520), 2 states have return successors, (520), 520 states have call predecessors, (520), 520 states have call successors, (520) [2024-10-14 20:58:32,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8320 states to 8320 states and 9187 transitions. [2024-10-14 20:58:32,161 INFO L78 Accepts]: Start accepts. Automaton has 8320 states and 9187 transitions. Word has length 255 [2024-10-14 20:58:32,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:32,161 INFO L471 AbstractCegarLoop]: Abstraction has 8320 states and 9187 transitions. [2024-10-14 20:58:32,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.1) internal successors, (141), 11 states have internal predecessors, (141), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-14 20:58:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 8320 states and 9187 transitions. [2024-10-14 20:58:32,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-10-14 20:58:32,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:32,166 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:32,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-10-14 20:58:32,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:32,367 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:58:32,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:32,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2050678156, now seen corresponding path program 15 times [2024-10-14 20:58:32,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:32,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396826945] [2024-10-14 20:58:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:32,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:58:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:58:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:58:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 20:58:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 20:58:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 20:58:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 20:58:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 20:58:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 20:58:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-14 20:58:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 20:58:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 20:58:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-14 20:58:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-10-14 20:58:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-14 20:58:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 287 proven. 912 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-10-14 20:58:32,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:32,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396826945] [2024-10-14 20:58:32,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396826945] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:32,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236547737] [2024-10-14 20:58:32,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:58:32,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:32,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:32,741 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:32,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-10-14 20:58:32,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-10-14 20:58:32,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:58:32,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-14 20:58:32,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 0 proven. 887 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2024-10-14 20:58:33,401 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:33,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236547737] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:33,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:58:33,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 25 [2024-10-14 20:58:33,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632622047] [2024-10-14 20:58:33,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:33,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-14 20:58:33,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:33,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-14 20:58:33,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2024-10-14 20:58:33,819 INFO L87 Difference]: Start difference. First operand 8320 states and 9187 transitions. Second operand has 25 states, 25 states have (on average 12.8) internal successors, (320), 25 states have internal predecessors, (320), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-10-14 20:58:36,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:36,077 INFO L93 Difference]: Finished difference Result 17623 states and 19521 transitions. [2024-10-14 20:58:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-10-14 20:58:36,078 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 12.8) internal successors, (320), 25 states have internal predecessors, (320), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 275 [2024-10-14 20:58:36,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:36,093 INFO L225 Difference]: With dead ends: 17623 [2024-10-14 20:58:36,093 INFO L226 Difference]: Without dead ends: 13298 [2024-10-14 20:58:36,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=533, Invalid=3889, Unknown=0, NotChecked=0, Total=4422 [2024-10-14 20:58:36,100 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 381 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 3298 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 3338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:36,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1430 Invalid, 3338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 3298 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 20:58:36,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13298 states. [2024-10-14 20:58:36,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13298 to 10573. [2024-10-14 20:58:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10573 states, 9907 states have (on average 1.037549207630968) internal successors, (10279), 9909 states have internal predecessors, (10279), 661 states have call successors, (661), 2 states have call predecessors, (661), 2 states have return successors, (661), 661 states have call predecessors, (661), 661 states have call successors, (661) [2024-10-14 20:58:36,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10573 states to 10573 states and 11601 transitions. [2024-10-14 20:58:36,541 INFO L78 Accepts]: Start accepts. Automaton has 10573 states and 11601 transitions. Word has length 275 [2024-10-14 20:58:36,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:36,542 INFO L471 AbstractCegarLoop]: Abstraction has 10573 states and 11601 transitions. [2024-10-14 20:58:36,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.8) internal successors, (320), 25 states have internal predecessors, (320), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-10-14 20:58:36,542 INFO L276 IsEmpty]: Start isEmpty. Operand 10573 states and 11601 transitions. [2024-10-14 20:58:36,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-14 20:58:36,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:36,547 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:36,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-10-14 20:58:36,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-10-14 20:58:36,752 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:58:36,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:36,752 INFO L85 PathProgramCache]: Analyzing trace with hash -767862437, now seen corresponding path program 16 times [2024-10-14 20:58:36,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:36,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476743224] [2024-10-14 20:58:36,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:36,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:36,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552676346] [2024-10-14 20:58:36,786 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:58:36,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:36,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:36,787 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:36,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-10-14 20:58:36,890 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:58:36,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:58:36,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-10-14 20:58:36,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:38,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 21 proven. 1420 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-10-14 20:58:38,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:58:38,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:38,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476743224] [2024-10-14 20:58:38,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:38,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552676346] [2024-10-14 20:58:38,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552676346] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:58:38,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:58:38,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-10-14 20:58:38,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954505936] [2024-10-14 20:58:38,447 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:58:38,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-14 20:58:38,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:38,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-14 20:58:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2024-10-14 20:58:38,448 INFO L87 Difference]: Start difference. First operand 10573 states and 11601 transitions. Second operand has 29 states, 28 states have (on average 8.0) internal successors, (224), 29 states have internal predecessors, (224), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-10-14 20:58:40,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:40,315 INFO L93 Difference]: Finished difference Result 10930 states and 11989 transitions. [2024-10-14 20:58:40,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-14 20:58:40,316 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 8.0) internal successors, (224), 29 states have internal predecessors, (224), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 295 [2024-10-14 20:58:40,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:40,328 INFO L225 Difference]: With dead ends: 10930 [2024-10-14 20:58:40,328 INFO L226 Difference]: Without dead ends: 10929 [2024-10-14 20:58:40,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=132, Invalid=924, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 20:58:40,331 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 26 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2947 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 2948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:40,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 914 Invalid, 2948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2947 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 20:58:40,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2024-10-14 20:58:40,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 10692. [2024-10-14 20:58:40,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10692 states, 10019 states have (on average 1.0372292643976444) internal successors, (10392), 10021 states have internal predecessors, (10392), 668 states have call successors, (668), 2 states have call predecessors, (668), 2 states have return successors, (668), 668 states have call predecessors, (668), 668 states have call successors, (668) [2024-10-14 20:58:40,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10692 states to 10692 states and 11728 transitions. [2024-10-14 20:58:40,814 INFO L78 Accepts]: Start accepts. Automaton has 10692 states and 11728 transitions. Word has length 295 [2024-10-14 20:58:40,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:40,814 INFO L471 AbstractCegarLoop]: Abstraction has 10692 states and 11728 transitions. [2024-10-14 20:58:40,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 8.0) internal successors, (224), 29 states have internal predecessors, (224), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-10-14 20:58:40,814 INFO L276 IsEmpty]: Start isEmpty. Operand 10692 states and 11728 transitions. [2024-10-14 20:58:40,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-10-14 20:58:40,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:40,818 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:40,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-10-14 20:58:41,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-10-14 20:58:41,019 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-14 20:58:41,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:41,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1930827955, now seen corresponding path program 17 times [2024-10-14 20:58:41,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:41,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200493851] [2024-10-14 20:58:41,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:41,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:41,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222534845] [2024-10-14 20:58:41,051 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 20:58:41,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:41,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:41,055 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:58:41,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-10-14 20:58:41,186 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-10-14 20:58:41,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:58:41,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 20:58:41,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:41,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 0 proven. 1230 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-10-14 20:58:41,680 INFO L311 TraceCheckSpWp]: Computing backward predicates...