./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:12:16,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:12:16,105 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-14 20:12:16,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:12:16,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:12:16,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:12:16,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:12:16,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:12:16,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:12:16,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:12:16,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:12:16,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:12:16,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:12:16,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:12:16,133 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:12:16,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:12:16,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:12:16,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:12:16,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:12:16,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:12:16,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:12:16,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:12:16,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:12:16,138 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:12:16,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:12:16,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:12:16,138 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:12:16,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:12:16,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:12:16,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:12:16,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:12:16,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:12:16,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:12:16,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:12:16,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:12:16,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:12:16,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:12:16,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:12:16,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:12:16,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:12:16,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:12:16,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 [2024-10-14 20:12:16,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:12:16,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:12:16,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:12:16,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:12:16,359 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:12:16,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-10-14 20:12:17,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:12:17,764 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:12:17,765 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-10-14 20:12:17,769 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec94abb3/ef354f905ad9488795842d06bd19b4f6/FLAG37c15606a [2024-10-14 20:12:18,194 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ec94abb3/ef354f905ad9488795842d06bd19b4f6 [2024-10-14 20:12:18,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:12:18,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:12:18,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:12:18,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:12:18,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:12:18,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc18685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18, skipping insertion in model container [2024-10-14 20:12:18,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:12:18,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:12:18,370 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:12:18,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:12:18,389 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:12:18,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18 WrapperNode [2024-10-14 20:12:18,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:12:18,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:12:18,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:12:18,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:12:18,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,425 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2024-10-14 20:12:18,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:12:18,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:12:18,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:12:18,430 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:12:18,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,437 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,441 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-14 20:12:18,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:12:18,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:12:18,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:12:18,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:12:18,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (1/1) ... [2024-10-14 20:12:18,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:12:18,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:18,481 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 20:12:18,482 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 20:12:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:12:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:12:18,677 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:12:18,679 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:12:18,768 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-14 20:12:18,770 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:12:18,793 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:12:18,795 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 20:12:18,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:12:18 BoogieIcfgContainer [2024-10-14 20:12:18,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:12:18,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:12:18,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:12:18,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:12:18,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:12:18" (1/3) ... [2024-10-14 20:12:18,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363f1049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:12:18, skipping insertion in model container [2024-10-14 20:12:18,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:12:18" (2/3) ... [2024-10-14 20:12:18,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363f1049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:12:18, skipping insertion in model container [2024-10-14 20:12:18,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:12:18" (3/3) ... [2024-10-14 20:12:18,803 INFO L112 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-10-14 20:12:18,814 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:12:18,815 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 20:12:18,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:12:18,876 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;@17e2b45c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:12:18,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 20:12:18,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 2.0) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 20:12:18,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:18,885 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 20:12:18,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:18,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:18,889 INFO L85 PathProgramCache]: Analyzing trace with hash 71274208, now seen corresponding path program 1 times [2024-10-14 20:12:18,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:18,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737359788] [2024-10-14 20:12:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:18,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:19,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:12:19,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:19,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737359788] [2024-10-14 20:12:19,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737359788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:12:19,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:12:19,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:12:19,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040509808] [2024-10-14 20:12:19,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:12:19,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:12:19,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:19,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:12:19,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:12:19,124 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 2.0) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:19,215 INFO L93 Difference]: Finished difference Result 26 states and 36 transitions. [2024-10-14 20:12:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:12:19,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-14 20:12:19,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:19,223 INFO L225 Difference]: With dead ends: 26 [2024-10-14 20:12:19,223 INFO L226 Difference]: Without dead ends: 12 [2024-10-14 20:12:19,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 20:12:19,229 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:19,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:12:19,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-14 20:12:19,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-14 20:12:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-10-14 20:12:19,253 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2024-10-14 20:12:19,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:19,254 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-10-14 20:12:19,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-10-14 20:12:19,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 20:12:19,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:19,255 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 20:12:19,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:12:19,256 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:19,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:19,256 INFO L85 PathProgramCache]: Analyzing trace with hash 71274263, now seen corresponding path program 1 times [2024-10-14 20:12:19,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:19,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38885793] [2024-10-14 20:12:19,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:19,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:19,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:12:19,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:19,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38885793] [2024-10-14 20:12:19,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38885793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:12:19,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:12:19,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:12:19,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663622885] [2024-10-14 20:12:19,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:12:19,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:12:19,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:19,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:12:19,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:12:19,307 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:19,325 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2024-10-14 20:12:19,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:12:19,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-14 20:12:19,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:19,326 INFO L225 Difference]: With dead ends: 12 [2024-10-14 20:12:19,326 INFO L226 Difference]: Without dead ends: 11 [2024-10-14 20:12:19,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:12:19,327 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:19,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 8 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:12:19,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-10-14 20:12:19,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-14 20:12:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-10-14 20:12:19,330 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2024-10-14 20:12:19,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:19,331 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-10-14 20:12:19,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-10-14 20:12:19,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-14 20:12:19,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:19,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 20:12:19,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:12:19,332 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:19,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:19,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2085465086, now seen corresponding path program 1 times [2024-10-14 20:12:19,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:19,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677976940] [2024-10-14 20:12:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:19,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:12:19,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:19,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677976940] [2024-10-14 20:12:19,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677976940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:12:19,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:12:19,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:12:19,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986860082] [2024-10-14 20:12:19,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:12:19,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:12:19,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:19,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:12:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:12:19,369 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:19,387 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-10-14 20:12:19,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:12:19,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-14 20:12:19,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:19,388 INFO L225 Difference]: With dead ends: 14 [2024-10-14 20:12:19,388 INFO L226 Difference]: Without dead ends: 13 [2024-10-14 20:12:19,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 20:12:19,394 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:19,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:12:19,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-10-14 20:12:19,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-10-14 20:12:19,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-10-14 20:12:19,397 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2024-10-14 20:12:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:19,401 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-10-14 20:12:19,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,401 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-10-14 20:12:19,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 20:12:19,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:19,402 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:12:19,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 20:12:19,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:19,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:19,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1388389389, now seen corresponding path program 1 times [2024-10-14 20:12:19,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:19,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189056624] [2024-10-14 20:12:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:12:19,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:19,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189056624] [2024-10-14 20:12:19,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189056624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:12:19,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:12:19,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:12:19,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893066804] [2024-10-14 20:12:19,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:12:19,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:12:19,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:19,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:12:19,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:12:19,444 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:19,459 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-10-14 20:12:19,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:12:19,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 20:12:19,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:19,460 INFO L225 Difference]: With dead ends: 24 [2024-10-14 20:12:19,460 INFO L226 Difference]: Without dead ends: 23 [2024-10-14 20:12:19,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:12:19,461 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:19,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:12:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-14 20:12:19,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2024-10-14 20:12:19,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-10-14 20:12:19,466 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 9 [2024-10-14 20:12:19,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:19,466 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-10-14 20:12:19,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-10-14 20:12:19,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 20:12:19,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:19,467 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-14 20:12:19,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:12:19,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:19,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:19,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1388387691, now seen corresponding path program 1 times [2024-10-14 20:12:19,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:19,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18656186] [2024-10-14 20:12:19,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:19,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:12:19,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:19,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18656186] [2024-10-14 20:12:19,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18656186] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:19,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106830820] [2024-10-14 20:12:19,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:19,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:19,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:19,519 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 20:12:19,520 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 20:12:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:19,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:12:19,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:12:19,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:19,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:12:19,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106830820] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:19,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:19,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-14 20:12:19,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55294364] [2024-10-14 20:12:19,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:19,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:12:19,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:19,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:12:19,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:12:19,649 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:19,690 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2024-10-14 20:12:19,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:12:19,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 20:12:19,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:19,691 INFO L225 Difference]: With dead ends: 36 [2024-10-14 20:12:19,691 INFO L226 Difference]: Without dead ends: 20 [2024-10-14 20:12:19,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:12:19,693 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:19,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:12:19,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-10-14 20:12:19,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-10-14 20:12:19,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2024-10-14 20:12:19,697 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 9 [2024-10-14 20:12:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:19,697 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2024-10-14 20:12:19,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:19,697 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-10-14 20:12:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 20:12:19,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:19,698 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:12:19,710 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 20:12:19,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:19,902 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:19,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:19,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1111957975, now seen corresponding path program 1 times [2024-10-14 20:12:19,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:19,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119554578] [2024-10-14 20:12:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:20,012 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 20:12:20,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:20,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119554578] [2024-10-14 20:12:20,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119554578] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:20,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466434955] [2024-10-14 20:12:20,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:20,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:20,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:20,016 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 20:12:20,019 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 20:12:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:20,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:12:20,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:20,072 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 20:12:20,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 20:12:20,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466434955] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:20,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:20,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-14 20:12:20,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392342183] [2024-10-14 20:12:20,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:20,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:12:20,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:20,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:12:20,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:12:20,111 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:20,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:20,163 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2024-10-14 20:12:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:12:20,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-14 20:12:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:20,164 INFO L225 Difference]: With dead ends: 51 [2024-10-14 20:12:20,165 INFO L226 Difference]: Without dead ends: 50 [2024-10-14 20:12:20,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:12:20,166 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:20,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 17 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:12:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-14 20:12:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2024-10-14 20:12:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2024-10-14 20:12:20,173 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 16 [2024-10-14 20:12:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:20,174 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2024-10-14 20:12:20,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2024-10-14 20:12:20,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 20:12:20,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:20,175 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:12:20,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:12:20,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-14 20:12:20,376 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:20,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:20,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1111959673, now seen corresponding path program 1 times [2024-10-14 20:12:20,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:20,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935942765] [2024-10-14 20:12:20,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:20,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:12:20,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:20,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935942765] [2024-10-14 20:12:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935942765] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:20,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750692640] [2024-10-14 20:12:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:20,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:20,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:20,461 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 20:12:20,463 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 20:12:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:20,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:12:20,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:20,556 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:12:20,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:20,627 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:12:20,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750692640] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:20,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:20,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-10-14 20:12:20,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123873049] [2024-10-14 20:12:20,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:20,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 20:12:20,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:20,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 20:12:20,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:12:20,630 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:20,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:20,834 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2024-10-14 20:12:20,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 20:12:20,835 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-14 20:12:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:20,836 INFO L225 Difference]: With dead ends: 65 [2024-10-14 20:12:20,836 INFO L226 Difference]: Without dead ends: 64 [2024-10-14 20:12:20,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2024-10-14 20:12:20,837 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 37 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:20,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 10 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:12:20,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-14 20:12:20,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 59. [2024-10-14 20:12:20,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 58 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2024-10-14 20:12:20,846 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 16 [2024-10-14 20:12:20,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:20,846 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2024-10-14 20:12:20,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:20,847 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2024-10-14 20:12:20,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-14 20:12:20,847 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:20,847 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 2, 1, 1, 1, 1, 1, 1] [2024-10-14 20:12:20,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 20:12:21,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:21,048 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:21,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:21,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2001877415, now seen corresponding path program 2 times [2024-10-14 20:12:21,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:21,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243668617] [2024-10-14 20:12:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 20:12:21,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:21,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243668617] [2024-10-14 20:12:21,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243668617] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:21,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039346160] [2024-10-14 20:12:21,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:12:21,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:21,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:21,152 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 20:12:21,160 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 20:12:21,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:12:21,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:12:21,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:12:21,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:12:21,297 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:21,401 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:12:21,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039346160] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:21,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:21,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-10-14 20:12:21,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467175345] [2024-10-14 20:12:21,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:21,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 20:12:21,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:21,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 20:12:21,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:12:21,404 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:21,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:21,767 INFO L93 Difference]: Finished difference Result 107 states and 126 transitions. [2024-10-14 20:12:21,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-14 20:12:21,768 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-10-14 20:12:21,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:21,768 INFO L225 Difference]: With dead ends: 107 [2024-10-14 20:12:21,769 INFO L226 Difference]: Without dead ends: 65 [2024-10-14 20:12:21,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2024-10-14 20:12:21,770 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 35 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:21,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 8 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:12:21,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-14 20:12:21,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 44. [2024-10-14 20:12:21,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:21,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2024-10-14 20:12:21,775 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 22 [2024-10-14 20:12:21,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:21,776 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2024-10-14 20:12:21,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2024-10-14 20:12:21,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:12:21,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:21,777 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2024-10-14 20:12:21,801 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 20:12:21,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:21,978 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:21,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:21,978 INFO L85 PathProgramCache]: Analyzing trace with hash 911764211, now seen corresponding path program 2 times [2024-10-14 20:12:21,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:21,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339048384] [2024-10-14 20:12:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:21,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-10-14 20:12:22,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:22,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339048384] [2024-10-14 20:12:22,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339048384] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:22,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57996601] [2024-10-14 20:12:22,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:12:22,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:22,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:22,023 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 20:12:22,024 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 20:12:22,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 20:12:22,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:12:22,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:12:22,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-10-14 20:12:22,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-10-14 20:12:22,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57996601] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:22,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:22,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-10-14 20:12:22,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452801565] [2024-10-14 20:12:22,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:22,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:12:22,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:22,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:12:22,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:12:22,118 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:22,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:22,132 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2024-10-14 20:12:22,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:12:22,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-10-14 20:12:22,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:22,133 INFO L225 Difference]: With dead ends: 44 [2024-10-14 20:12:22,133 INFO L226 Difference]: Without dead ends: 43 [2024-10-14 20:12:22,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 1 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 20:12:22,134 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:22,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:12:22,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-14 20:12:22,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-10-14 20:12:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.125) internal successors, (45), 40 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2024-10-14 20:12:22,142 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 37 [2024-10-14 20:12:22,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:22,142 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2024-10-14 20:12:22,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:22,142 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2024-10-14 20:12:22,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:12:22,143 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:22,143 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 1, 1, 1] [2024-10-14 20:12:22,162 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 20:12:22,347 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 20:12:22,348 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:22,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:22,349 INFO L85 PathProgramCache]: Analyzing trace with hash 911765909, now seen corresponding path program 3 times [2024-10-14 20:12:22,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:22,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216315959] [2024-10-14 20:12:22,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:22,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:12:22,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:22,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216315959] [2024-10-14 20:12:22,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216315959] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:22,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449519035] [2024-10-14 20:12:22,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:12:22,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:22,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:22,586 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 20:12:22,589 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 20:12:22,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-14 20:12:22,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:12:22,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:12:22,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:22,731 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:12:22,731 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:12:22,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449519035] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:22,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:22,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-10-14 20:12:22,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434180162] [2024-10-14 20:12:22,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:22,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 20:12:22,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:22,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 20:12:22,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-14 20:12:22,858 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 21 states, 20 states have (on average 4.0) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:23,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:23,439 INFO L93 Difference]: Finished difference Result 149 states and 176 transitions. [2024-10-14 20:12:23,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-14 20:12:23,439 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.0) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-10-14 20:12:23,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:23,440 INFO L225 Difference]: With dead ends: 149 [2024-10-14 20:12:23,440 INFO L226 Difference]: Without dead ends: 148 [2024-10-14 20:12:23,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=904, Invalid=2636, Unknown=0, NotChecked=0, Total=3540 [2024-10-14 20:12:23,442 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 52 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:23,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 12 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:12:23,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-10-14 20:12:23,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 111. [2024-10-14 20:12:23,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.2) internal successors, (132), 110 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 132 transitions. [2024-10-14 20:12:23,452 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 132 transitions. Word has length 37 [2024-10-14 20:12:23,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:23,453 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 132 transitions. [2024-10-14 20:12:23,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.0) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2024-10-14 20:12:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 20:12:23,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:23,454 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 5, 4, 4, 4, 1, 1, 1] [2024-10-14 20:12:23,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 20:12:23,654 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 20:12:23,655 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:23,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:23,656 INFO L85 PathProgramCache]: Analyzing trace with hash -602748299, now seen corresponding path program 4 times [2024-10-14 20:12:23,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:23,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451012810] [2024-10-14 20:12:23,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:23,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 65 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:12:23,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:23,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451012810] [2024-10-14 20:12:23,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451012810] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:23,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143132429] [2024-10-14 20:12:23,786 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:12:23,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:23,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:23,788 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 20:12:23,789 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 20:12:23,823 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:12:23,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:12:23,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:12:23,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 92 proven. 47 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:12:23,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:24,144 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 65 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:12:24,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143132429] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:24,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:24,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 30 [2024-10-14 20:12:24,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512627506] [2024-10-14 20:12:24,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:24,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-14 20:12:24,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:24,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-14 20:12:24,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=723, Unknown=0, NotChecked=0, Total=870 [2024-10-14 20:12:24,147 INFO L87 Difference]: Start difference. First operand 111 states and 132 transitions. Second operand has 30 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 30 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:24,827 INFO L93 Difference]: Finished difference Result 423 states and 508 transitions. [2024-10-14 20:12:24,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-14 20:12:24,827 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 30 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-10-14 20:12:24,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:24,829 INFO L225 Difference]: With dead ends: 423 [2024-10-14 20:12:24,830 INFO L226 Difference]: Without dead ends: 333 [2024-10-14 20:12:24,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=689, Invalid=2617, Unknown=0, NotChecked=0, Total=3306 [2024-10-14 20:12:24,831 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:24,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:12:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-10-14 20:12:24,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 317. [2024-10-14 20:12:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.1518987341772151) internal successors, (364), 316 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:24,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 364 transitions. [2024-10-14 20:12:24,857 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 364 transitions. Word has length 43 [2024-10-14 20:12:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:24,858 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 364 transitions. [2024-10-14 20:12:24,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 30 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:24,858 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 364 transitions. [2024-10-14 20:12:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-14 20:12:24,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:24,859 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 5, 4, 4, 4, 1, 1, 1] [2024-10-14 20:12:24,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 20:12:25,063 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 20:12:25,064 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:25,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:25,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1564607824, now seen corresponding path program 5 times [2024-10-14 20:12:25,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:25,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261573004] [2024-10-14 20:12:25,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:25,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 51 proven. 112 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-14 20:12:25,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:25,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261573004] [2024-10-14 20:12:25,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261573004] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:25,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479173286] [2024-10-14 20:12:25,180 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 20:12:25,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:25,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:25,183 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 20:12:25,184 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 20:12:25,228 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-10-14 20:12:25,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:12:25,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 20:12:25,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:25,445 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 71 proven. 93 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:12:25,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 51 proven. 113 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:12:25,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479173286] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:25,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:25,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 30 [2024-10-14 20:12:25,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685044411] [2024-10-14 20:12:25,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:25,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-14 20:12:25,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:25,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-14 20:12:25,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2024-10-14 20:12:25,612 INFO L87 Difference]: Start difference. First operand 317 states and 364 transitions. Second operand has 30 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 30 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:26,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:26,218 INFO L93 Difference]: Finished difference Result 598 states and 690 transitions. [2024-10-14 20:12:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-14 20:12:26,220 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 30 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-10-14 20:12:26,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:26,223 INFO L225 Difference]: With dead ends: 598 [2024-10-14 20:12:26,223 INFO L226 Difference]: Without dead ends: 365 [2024-10-14 20:12:26,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=632, Invalid=2448, Unknown=0, NotChecked=0, Total=3080 [2024-10-14 20:12:26,227 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 50 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:26,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:12:26,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-10-14 20:12:26,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 347. [2024-10-14 20:12:26,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.1473988439306357) internal successors, (397), 346 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 397 transitions. [2024-10-14 20:12:26,253 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 397 transitions. Word has length 46 [2024-10-14 20:12:26,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:26,253 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 397 transitions. [2024-10-14 20:12:26,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 30 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:26,253 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 397 transitions. [2024-10-14 20:12:26,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-14 20:12:26,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:26,255 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 5, 4, 4, 4, 1, 1, 1] [2024-10-14 20:12:26,267 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 20:12:26,455 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 20:12:26,456 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:26,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:26,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1437437661, now seen corresponding path program 6 times [2024-10-14 20:12:26,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:26,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316287751] [2024-10-14 20:12:26,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:26,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 56 proven. 140 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 20:12:26,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:26,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316287751] [2024-10-14 20:12:26,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316287751] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:26,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071952206] [2024-10-14 20:12:26,600 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 20:12:26,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:26,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:26,601 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 20:12:26,605 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 20:12:26,637 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-10-14 20:12:26,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:12:26,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:12:26,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:26,841 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 40 proven. 146 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:12:26,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 4 proven. 182 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 20:12:27,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071952206] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:27,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:27,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 35 [2024-10-14 20:12:27,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820092957] [2024-10-14 20:12:27,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:27,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-14 20:12:27,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:27,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-14 20:12:27,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1058, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 20:12:27,062 INFO L87 Difference]: Start difference. First operand 347 states and 397 transitions. Second operand has 35 states, 35 states have (on average 3.6) internal successors, (126), 35 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:29,994 INFO L93 Difference]: Finished difference Result 1433 states and 1803 transitions. [2024-10-14 20:12:29,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-10-14 20:12:29,995 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.6) internal successors, (126), 35 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-10-14 20:12:29,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:29,998 INFO L225 Difference]: With dead ends: 1433 [2024-10-14 20:12:29,998 INFO L226 Difference]: Without dead ends: 1140 [2024-10-14 20:12:30,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6476 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2806, Invalid=16934, Unknown=0, NotChecked=0, Total=19740 [2024-10-14 20:12:30,003 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 325 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:30,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:12:30,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2024-10-14 20:12:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 383. [2024-10-14 20:12:30,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.1570680628272252) internal successors, (442), 382 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:30,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 442 transitions. [2024-10-14 20:12:30,042 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 442 transitions. Word has length 49 [2024-10-14 20:12:30,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:30,042 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 442 transitions. [2024-10-14 20:12:30,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.6) internal successors, (126), 35 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:30,043 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 442 transitions. [2024-10-14 20:12:30,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-14 20:12:30,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:30,044 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 1, 1, 1] [2024-10-14 20:12:30,057 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 20:12:30,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 20:12:30,245 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:30,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:30,246 INFO L85 PathProgramCache]: Analyzing trace with hash 172840981, now seen corresponding path program 7 times [2024-10-14 20:12:30,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:30,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363998295] [2024-10-14 20:12:30,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:30,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:30,471 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 20:12:30,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:30,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363998295] [2024-10-14 20:12:30,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363998295] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:30,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540123909] [2024-10-14 20:12:30,472 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-14 20:12:30,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:30,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:30,476 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 20:12:30,480 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 20:12:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:30,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 20:12:30,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 20:12:30,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:30,936 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 20:12:30,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540123909] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:30,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:30,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 32 [2024-10-14 20:12:30,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072548797] [2024-10-14 20:12:30,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:30,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-14 20:12:30,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:30,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-14 20:12:30,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=726, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 20:12:30,938 INFO L87 Difference]: Start difference. First operand 383 states and 442 transitions. Second operand has 33 states, 32 states have (on average 5.125) internal successors, (164), 33 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:32,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:32,796 INFO L93 Difference]: Finished difference Result 3644 states and 4315 transitions. [2024-10-14 20:12:32,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2024-10-14 20:12:32,797 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.125) internal successors, (164), 33 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-14 20:12:32,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:32,806 INFO L225 Difference]: With dead ends: 3644 [2024-10-14 20:12:32,806 INFO L226 Difference]: Without dead ends: 3643 [2024-10-14 20:12:32,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5686 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=4096, Invalid=11654, Unknown=0, NotChecked=0, Total=15750 [2024-10-14 20:12:32,810 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 122 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:32,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 30 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:12:32,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2024-10-14 20:12:32,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 1053. [2024-10-14 20:12:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1052 states have (on average 1.1663498098859315) internal successors, (1227), 1052 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1227 transitions. [2024-10-14 20:12:32,933 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1227 transitions. Word has length 79 [2024-10-14 20:12:32,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:32,933 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1227 transitions. [2024-10-14 20:12:32,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.125) internal successors, (164), 33 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1227 transitions. [2024-10-14 20:12:32,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 20:12:32,935 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:32,935 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 8, 7, 7, 7, 1, 1, 1] [2024-10-14 20:12:32,946 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 20:12:33,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 20:12:33,135 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:33,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:33,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1790079047, now seen corresponding path program 8 times [2024-10-14 20:12:33,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:33,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548028407] [2024-10-14 20:12:33,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:33,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:33,374 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 94 proven. 472 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-14 20:12:33,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:33,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548028407] [2024-10-14 20:12:33,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548028407] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:33,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080609210] [2024-10-14 20:12:33,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:12:33,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:33,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:33,376 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 20:12:33,381 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 20:12:33,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:12:33,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:12:33,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 20:12:33,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 0 proven. 571 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-10-14 20:12:33,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:34,188 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 1 proven. 570 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-10-14 20:12:34,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080609210] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:34,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:34,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 42 [2024-10-14 20:12:34,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480582028] [2024-10-14 20:12:34,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:34,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-14 20:12:34,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:34,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-14 20:12:34,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1521, Unknown=0, NotChecked=0, Total=1722 [2024-10-14 20:12:34,191 INFO L87 Difference]: Start difference. First operand 1053 states and 1227 transitions. Second operand has 42 states, 42 states have (on average 4.285714285714286) internal successors, (180), 42 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:45,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:12:45,473 INFO L93 Difference]: Finished difference Result 3638 states and 4291 transitions. [2024-10-14 20:12:45,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 341 states. [2024-10-14 20:12:45,474 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 4.285714285714286) internal successors, (180), 42 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 20:12:45,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:12:45,481 INFO L225 Difference]: With dead ends: 3638 [2024-10-14 20:12:45,481 INFO L226 Difference]: Without dead ends: 2985 [2024-10-14 20:12:45,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 378 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63984 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=18334, Invalid=125686, Unknown=0, NotChecked=0, Total=144020 [2024-10-14 20:12:45,490 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 816 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:12:45,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:12:45,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2024-10-14 20:12:45,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 1835. [2024-10-14 20:12:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1834 states have (on average 1.1613958560523445) internal successors, (2130), 1834 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:45,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2130 transitions. [2024-10-14 20:12:45,856 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2130 transitions. Word has length 82 [2024-10-14 20:12:45,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:12:45,856 INFO L471 AbstractCegarLoop]: Abstraction has 1835 states and 2130 transitions. [2024-10-14 20:12:45,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.285714285714286) internal successors, (180), 42 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:12:45,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2130 transitions. [2024-10-14 20:12:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 20:12:45,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:12:45,862 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 12, 11, 11, 11, 1, 1, 1] [2024-10-14 20:12:45,889 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 20:12:46,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 20:12:46,064 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:12:46,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:12:46,064 INFO L85 PathProgramCache]: Analyzing trace with hash -433974499, now seen corresponding path program 9 times [2024-10-14 20:12:46,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:12:46,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434440449] [2024-10-14 20:12:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:12:46,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:12:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:12:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 0 proven. 808 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:12:46,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:12:46,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434440449] [2024-10-14 20:12:46,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434440449] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:12:46,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387152978] [2024-10-14 20:12:46,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:12:46,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:12:46,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:12:46,429 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 20:12:46,430 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 20:12:46,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-10-14 20:12:46,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:12:46,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:12:46,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:12:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 424 proven. 184 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-10-14 20:12:46,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:12:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 424 proven. 184 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-10-14 20:12:47,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387152978] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:12:47,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:12:47,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 12] total 40 [2024-10-14 20:12:47,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102393060] [2024-10-14 20:12:47,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:12:47,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-10-14 20:12:47,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:12:47,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-10-14 20:12:47,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1364, Unknown=0, NotChecked=0, Total=1640 [2024-10-14 20:12:47,072 INFO L87 Difference]: Start difference. First operand 1835 states and 2130 transitions. Second operand has 41 states, 40 states have (on average 4.4) internal successors, (176), 41 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:00,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:00,710 INFO L93 Difference]: Finished difference Result 8586 states and 10451 transitions. [2024-10-14 20:13:00,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2024-10-14 20:13:00,711 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 4.4) internal successors, (176), 41 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-10-14 20:13:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:00,735 INFO L225 Difference]: With dead ends: 8586 [2024-10-14 20:13:00,735 INFO L226 Difference]: Without dead ends: 8585 [2024-10-14 20:13:00,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 387 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69506 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=26124, Invalid=124808, Unknown=0, NotChecked=0, Total=150932 [2024-10-14 20:13:00,751 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 706 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 861 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 861 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:00,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 3 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [861 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 20:13:00,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8585 states. [2024-10-14 20:13:01,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8585 to 2186. [2024-10-14 20:13:01,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 2185 states have (on average 1.1647597254004576) internal successors, (2545), 2185 states have internal predecessors, (2545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:01,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 2545 transitions. [2024-10-14 20:13:01,241 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 2545 transitions. Word has length 98 [2024-10-14 20:13:01,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:01,241 INFO L471 AbstractCegarLoop]: Abstraction has 2186 states and 2545 transitions. [2024-10-14 20:13:01,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.4) internal successors, (176), 41 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:01,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 2545 transitions. [2024-10-14 20:13:01,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-14 20:13:01,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:01,244 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 23, 23, 22, 22, 22, 1, 1, 1] [2024-10-14 20:13:01,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 20:13:01,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 20:13:01,445 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:13:01,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:01,445 INFO L85 PathProgramCache]: Analyzing trace with hash 705086741, now seen corresponding path program 10 times [2024-10-14 20:13:01,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:01,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166043622] [2024-10-14 20:13:01,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:01,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 20:13:02,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:02,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166043622] [2024-10-14 20:13:02,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166043622] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:02,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756274642] [2024-10-14 20:13:02,074 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:13:02,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:02,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:02,076 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 20:13:02,076 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 20:13:02,137 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:13:02,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:13:02,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 20:13:02,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:02,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 20:13:02,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:03,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 20:13:03,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756274642] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:03,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:03,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 56 [2024-10-14 20:13:03,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502879541] [2024-10-14 20:13:03,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:03,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-10-14 20:13:03,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:03,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-10-14 20:13:03,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1206, Invalid=1986, Unknown=0, NotChecked=0, Total=3192 [2024-10-14 20:13:03,312 INFO L87 Difference]: Start difference. First operand 2186 states and 2545 transitions. Second operand has 57 states, 56 states have (on average 5.928571428571429) internal successors, (332), 57 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:14,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:14,185 INFO L93 Difference]: Finished difference Result 24097 states and 28922 transitions. [2024-10-14 20:13:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2024-10-14 20:13:14,185 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 5.928571428571429) internal successors, (332), 57 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-10-14 20:13:14,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:14,267 INFO L225 Difference]: With dead ends: 24097 [2024-10-14 20:13:14,268 INFO L226 Difference]: Without dead ends: 24096 [2024-10-14 20:13:14,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25792 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=17392, Invalid=48914, Unknown=0, NotChecked=0, Total=66306 [2024-10-14 20:13:14,284 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 213 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:14,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 42 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:13:14,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24096 states. [2024-10-14 20:13:15,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24096 to 7673. [2024-10-14 20:13:15,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7673 states, 7672 states have (on average 1.1751824817518248) internal successors, (9016), 7672 states have internal predecessors, (9016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7673 states to 7673 states and 9016 transitions. [2024-10-14 20:13:15,589 INFO L78 Accepts]: Start accepts. Automaton has 7673 states and 9016 transitions. Word has length 163 [2024-10-14 20:13:15,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:15,590 INFO L471 AbstractCegarLoop]: Abstraction has 7673 states and 9016 transitions. [2024-10-14 20:13:15,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 5.928571428571429) internal successors, (332), 57 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:15,590 INFO L276 IsEmpty]: Start isEmpty. Operand 7673 states and 9016 transitions. [2024-10-14 20:13:15,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-14 20:13:15,595 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:15,595 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 34, 21, 20, 20, 20, 1, 1, 1] [2024-10-14 20:13:15,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-14 20:13:15,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-14 20:13:15,800 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:13:15,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:15,800 INFO L85 PathProgramCache]: Analyzing trace with hash -2013386598, now seen corresponding path program 11 times [2024-10-14 20:13:15,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:15,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078539765] [2024-10-14 20:13:15,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:15,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3265 backedges. 0 proven. 2617 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-10-14 20:13:16,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:16,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078539765] [2024-10-14 20:13:16,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078539765] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:16,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038849433] [2024-10-14 20:13:16,239 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 20:13:16,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:16,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:16,244 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 20:13:16,245 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 20:13:16,312 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 28 check-sat command(s) [2024-10-14 20:13:16,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:13:16,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-14 20:13:16,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3265 backedges. 1548 proven. 1577 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-14 20:13:17,054 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3265 backedges. 1472 proven. 1653 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-14 20:13:17,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038849433] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:17,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:17,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 27, 27] total 64 [2024-10-14 20:13:17,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50420157] [2024-10-14 20:13:17,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:17,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-10-14 20:13:17,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:17,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-10-14 20:13:17,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=3565, Unknown=0, NotChecked=0, Total=4032 [2024-10-14 20:13:17,724 INFO L87 Difference]: Start difference. First operand 7673 states and 9016 transitions. Second operand has 64 states, 64 states have (on average 5.21875) internal successors, (334), 64 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:28,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:28,725 INFO L93 Difference]: Finished difference Result 17238 states and 20362 transitions. [2024-10-14 20:13:28,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 276 states. [2024-10-14 20:13:28,726 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 5.21875) internal successors, (334), 64 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2024-10-14 20:13:28,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:28,767 INFO L225 Difference]: With dead ends: 17238 [2024-10-14 20:13:28,771 INFO L226 Difference]: Without dead ends: 10434 [2024-10-14 20:13:28,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 325 SyntacticMatches, 8 SemanticMatches, 333 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41994 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=13105, Invalid=98785, Unknown=0, NotChecked=0, Total=111890 [2024-10-14 20:13:28,796 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 546 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 4027 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 4311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 4027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:28,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 3 Invalid, 4311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 4027 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 20:13:28,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2024-10-14 20:13:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 5221. [2024-10-14 20:13:30,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 1.138697318007663) internal successors, (5944), 5220 states have internal predecessors, (5944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 5944 transitions. [2024-10-14 20:13:30,140 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 5944 transitions. Word has length 188 [2024-10-14 20:13:30,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:30,141 INFO L471 AbstractCegarLoop]: Abstraction has 5221 states and 5944 transitions. [2024-10-14 20:13:30,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 5.21875) internal successors, (334), 64 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:30,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 5944 transitions. [2024-10-14 20:13:30,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-14 20:13:30,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:30,149 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 35, 24, 23, 23, 23, 1, 1, 1] [2024-10-14 20:13:30,178 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 20:13:30,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:30,350 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:13:30,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:30,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1403545960, now seen corresponding path program 12 times [2024-10-14 20:13:30,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:30,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629701300] [2024-10-14 20:13:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:30,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:30,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3753 backedges. 0 proven. 2885 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-10-14 20:13:30,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:30,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629701300] [2024-10-14 20:13:30,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629701300] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:30,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247143101] [2024-10-14 20:13:30,856 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 20:13:30,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:30,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:30,858 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 20:13:30,861 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 20:13:30,972 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 38 check-sat command(s) [2024-10-14 20:13:30,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:13:30,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-14 20:13:30,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:31,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3753 backedges. 198 proven. 2687 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-10-14 20:13:31,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3753 backedges. 28 proven. 2857 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-10-14 20:13:31,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247143101] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:31,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:31,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 46 [2024-10-14 20:13:31,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674425419] [2024-10-14 20:13:31,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:31,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-10-14 20:13:31,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:31,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-10-14 20:13:31,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=535, Invalid=1627, Unknown=0, NotChecked=0, Total=2162 [2024-10-14 20:13:31,812 INFO L87 Difference]: Start difference. First operand 5221 states and 5944 transitions. Second operand has 47 states, 46 states have (on average 5.304347826086956) internal successors, (244), 47 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:44,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:13:44,105 INFO L93 Difference]: Finished difference Result 18465 states and 22087 transitions. [2024-10-14 20:13:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 335 states. [2024-10-14 20:13:44,106 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 5.304347826086956) internal successors, (244), 47 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2024-10-14 20:13:44,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:13:44,129 INFO L225 Difference]: With dead ends: 18465 [2024-10-14 20:13:44,129 INFO L226 Difference]: Without dead ends: 18464 [2024-10-14 20:13:44,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 343 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56444 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=26772, Invalid=91908, Unknown=0, NotChecked=0, Total=118680 [2024-10-14 20:13:44,136 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 45 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:13:44,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 20:13:44,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18464 states. [2024-10-14 20:13:45,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18464 to 4424. [2024-10-14 20:13:45,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4423 states have (on average 1.1426633506669681) internal successors, (5054), 4423 states have internal predecessors, (5054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:45,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 5054 transitions. [2024-10-14 20:13:45,656 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 5054 transitions. Word has length 203 [2024-10-14 20:13:45,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:13:45,656 INFO L471 AbstractCegarLoop]: Abstraction has 4424 states and 5054 transitions. [2024-10-14 20:13:45,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 5.304347826086956) internal successors, (244), 47 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:13:45,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 5054 transitions. [2024-10-14 20:13:45,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-14 20:13:45,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:13:45,661 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 45, 29, 28, 28, 28, 1, 1, 1] [2024-10-14 20:13:45,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-14 20:13:45,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:45,865 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-14 20:13:45,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:13:45,865 INFO L85 PathProgramCache]: Analyzing trace with hash 975618907, now seen corresponding path program 13 times [2024-10-14 20:13:45,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:13:45,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887836148] [2024-10-14 20:13:45,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:13:45,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:13:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 5933 backedges. 0 proven. 4713 refuted. 0 times theorem prover too weak. 1220 trivial. 0 not checked. [2024-10-14 20:13:46,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:13:46,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887836148] [2024-10-14 20:13:46,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887836148] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:13:46,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201444883] [2024-10-14 20:13:46,777 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-14 20:13:46,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:13:46,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:13:46,778 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 20:13:46,782 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 20:13:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:13:46,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-10-14 20:13:46,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:13:48,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5933 backedges. 2434 proven. 3339 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-10-14 20:13:48,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:13:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 5933 backedges. 2311 proven. 3462 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-10-14 20:13:49,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201444883] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:13:49,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:13:49,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 35, 35] total 82 [2024-10-14 20:13:49,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803754233] [2024-10-14 20:13:49,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:13:49,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2024-10-14 20:13:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:13:49,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2024-10-14 20:13:49,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=874, Invalid=5768, Unknown=0, NotChecked=0, Total=6642 [2024-10-14 20:13:49,562 INFO L87 Difference]: Start difference. First operand 4424 states and 5054 transitions. Second operand has 82 states, 82 states have (on average 5.682926829268292) internal successors, (466), 82 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)